diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c7110d97..6192b2da 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,44 @@ on:
     branches: [ main ]
 
 jobs:
-  build:
+  build-jvm:
+    # prevent from running on forks
+    if: github.repository_owner == 'restatedev'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        jvm-version: [ 17 ]
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use JVM ${{ matrix.jvm-version }}
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.jvm-version }}
+
+      - name: Test jvm/java-blocking-http
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/java-blocking-http
+      - name: Test jvm/java-blocking-lambda
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/java-blocking-lambda
+      - name: Test jvm/kotlin-http
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/kotlin-http
+      - name: Test jvm/kotlin-lambda
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/kotlin-lambda
+  build-ts:
     # prevent from running on forks
     if: github.repository_owner == 'restatedev'
     runs-on: ubuntu-latest
@@ -17,11 +54,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+
       - uses: bufbuild/buf-setup-action@v1
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
+
       - run: npm ci --prefix typescript
       - run: npm run --prefix typescript -ws verify
diff --git a/jvm/java-blocking-http/.gitignore b/jvm/java-blocking-http/.gitignore
new file mode 100644
index 00000000..5ae75d3d
--- /dev/null
+++ b/jvm/java-blocking-http/.gitignore
@@ -0,0 +1,32 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+*.iml
diff --git a/jvm/java-blocking-http/README.md b/jvm/java-blocking-http/README.md
new file mode 100644
index 00000000..2b1330b7
--- /dev/null
+++ b/jvm/java-blocking-http/README.md
@@ -0,0 +1,29 @@
+# Blocking HTTP example
+
+Sample project configuration of a Restate service using the Java blocking interface and HTTP server. It contains:
+
+* [`build.gradle.kts`](build.gradle.kts)
+* [Service interface definition `greeter.proto`](src/main/proto/greeter.proto)
+* [Service class implementation `Greeter`](src/main/java/dev/restate/sdk/examples/Greeter.java)
+* [Test `GreeterTest`](src/test/java/dev/restate/sdk/examples/GreeterTest.java)
+* [Logging configuration](src/main/resources/log4j2.properties)
+
+## Running the example
+
+You can run the Java greeter service via:
+
+```shell
+./gradlew run
+```
+
+Or from the IDE UI.
+
+## Running the tests
+
+You can run the tests either via:
+
+```shell
+./gradlew check
+```
+
+Or from the IDE UI.
\ No newline at end of file
diff --git a/jvm/java-blocking-http/build.gradle.kts b/jvm/java-blocking-http/build.gradle.kts
new file mode 100644
index 00000000..6e1a50a9
--- /dev/null
+++ b/jvm/java-blocking-http/build.gradle.kts
@@ -0,0 +1,70 @@
+import com.google.protobuf.gradle.id
+
+plugins {
+  java
+  application
+
+  id("com.google.protobuf") version "0.9.1"
+}
+
+repositories {
+  mavenCentral()
+  // OSSRH Snapshots repo
+  // TODO remove it once we have the proper release
+  maven { url = uri("https://s01.oss.sonatype.org/content/repositories/snapshots/") }
+}
+
+val restateVersion = "0.0.1-SNAPSHOT"
+
+dependencies {
+  // Restate SDK
+  implementation("dev.restate:sdk-java-blocking:$restateVersion")
+  implementation("dev.restate:sdk-http-vertx:$restateVersion")
+  // To use Jackson to read/write state entries (optional)
+  implementation("dev.restate:sdk-serde-jackson:$restateVersion")
+
+  // Protobuf and grpc dependencies
+  implementation("com.google.protobuf:protobuf-java:3.24.3")
+  implementation("io.grpc:grpc-stub:1.58.0")
+  implementation("io.grpc:grpc-protobuf:1.58.0")
+  // This is needed to compile the @Generated annotation forced by the grpc compiler
+  // See https://github.com/grpc/grpc-java/issues/9153
+  compileOnly("org.apache.tomcat:annotations-api:6.0.53")
+
+  // Logging (optional)
+  implementation("org.apache.logging.log4j:log4j-core:2.20.0")
+
+  // Testing (optional)
+  testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
+  testImplementation("dev.restate:sdk-test:$restateVersion")
+}
+
+// Configure protoc plugin
+protobuf {
+  protoc { artifact = "com.google.protobuf:protoc:3.24.3" }
+
+  // We need both grpc and restate codegen(s) because the restate codegen depends on the grpc one
+  plugins {
+    id("grpc") { artifact = "io.grpc:protoc-gen-grpc-java:1.58.0" }
+    id("restate") { artifact = "dev.restate:protoc-gen-restate-java-blocking:$restateVersion:all@jar" }
+  }
+
+  generateProtoTasks {
+    all().forEach {
+      it.plugins {
+        id("grpc")
+        id("restate")
+      }
+    }
+  }
+}
+
+// Configure test platform
+tasks.withType<Test> {
+  useJUnitPlatform()
+}
+
+// Set main class
+application {
+  mainClass.set("dev.restate.sdk.examples.Greeter")
+}
\ No newline at end of file
diff --git a/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.jar b/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..033e24c4
Binary files /dev/null and b/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.properties b/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..62f495df
--- /dev/null
+++ b/jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/jvm/java-blocking-http/gradlew b/jvm/java-blocking-http/gradlew
new file mode 100755
index 00000000..fcb6fca1
--- /dev/null
+++ b/jvm/java-blocking-http/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/jvm/java-blocking-http/gradlew.bat b/jvm/java-blocking-http/gradlew.bat
new file mode 100644
index 00000000..6689b85b
--- /dev/null
+++ b/jvm/java-blocking-http/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/jvm/java-blocking-http/src/main/java/dev/restate/sdk/examples/Greeter.java b/jvm/java-blocking-http/src/main/java/dev/restate/sdk/examples/Greeter.java
new file mode 100644
index 00000000..d3473ea5
--- /dev/null
+++ b/jvm/java-blocking-http/src/main/java/dev/restate/sdk/examples/Greeter.java
@@ -0,0 +1,28 @@
+package dev.restate.sdk.examples;
+
+import dev.restate.sdk.blocking.RestateContext;
+import dev.restate.sdk.core.CoreSerdes;
+import dev.restate.sdk.core.StateKey;
+import dev.restate.sdk.examples.generated.*;
+import dev.restate.sdk.http.vertx.RestateHttpEndpointBuilder;
+
+import static dev.restate.sdk.examples.generated.GreeterProto.*;
+
+public class Greeter extends GreeterRestate.GreeterRestateImplBase {
+
+  private static final StateKey<Integer> COUNT = StateKey.of("count", CoreSerdes.INT);
+
+  @Override
+  public GreetResponse greet(RestateContext context, GreetRequest request) {
+    int count = context.get(COUNT).orElse(1);
+    context.set(COUNT, count + 1);
+
+    return GreetResponse.newBuilder()
+            .setMessage("Hello " + request.getName() + " for the " + count + " time!")
+            .build();
+  }
+
+  public static void main(String[] args) {
+    RestateHttpEndpointBuilder.builder().withService(new Greeter()).buildAndListen();
+  }
+}
diff --git a/jvm/java-blocking-http/src/main/proto/greeter.proto b/jvm/java-blocking-http/src/main/proto/greeter.proto
new file mode 100644
index 00000000..74139459
--- /dev/null
+++ b/jvm/java-blocking-http/src/main/proto/greeter.proto
@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package greeter;
+
+import "dev/restate/ext.proto";
+
+option java_package = "dev.restate.sdk.examples.generated";
+option java_outer_classname = "GreeterProto";
+
+service Greeter {
+  option (dev.restate.ext.service_type) = KEYED;
+
+  rpc Greet (GreetRequest) returns (GreetResponse);
+}
+
+message GreetRequest {
+  string name = 1 [(dev.restate.ext.field) = KEY];
+}
+
+message GreetResponse {
+  string message = 1;
+}
diff --git a/jvm/java-blocking-http/src/main/resources/log4j2.properties b/jvm/java-blocking-http/src/main/resources/log4j2.properties
new file mode 100644
index 00000000..130894e5
--- /dev/null
+++ b/jvm/java-blocking-http/src/main/resources/log4j2.properties
@@ -0,0 +1,18 @@
+# Set to debug or trace if log4j initialization is failing
+status = warn
+
+# Console appender configuration
+appender.console.type = Console
+appender.console.name = consoleLogger
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %-5p %notEmpty{[%X{restateServiceMethod}]}%notEmpty{[%X{restateInvocationId}]} %c - %m%n
+
+# Restate logs to debug level
+logger.app.name = dev.restate
+logger.app.level = debug
+logger.app.additivity = false
+logger.app.appenderRef.console.ref = consoleLogger
+
+# Root logger
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = consoleLogger
\ No newline at end of file
diff --git a/jvm/java-blocking-http/src/test/java/dev/restate/sdk/examples/GreeterTest.java b/jvm/java-blocking-http/src/test/java/dev/restate/sdk/examples/GreeterTest.java
new file mode 100644
index 00000000..9f6f94c3
--- /dev/null
+++ b/jvm/java-blocking-http/src/test/java/dev/restate/sdk/examples/GreeterTest.java
@@ -0,0 +1,34 @@
+package dev.restate.sdk.examples;
+
+import dev.restate.sdk.examples.generated.GreeterGrpc;
+import dev.restate.sdk.examples.generated.GreeterGrpc.GreeterBlockingStub;
+import dev.restate.sdk.examples.generated.GreeterProto.GreetRequest;
+import dev.restate.sdk.examples.generated.GreeterProto.GreetResponse;
+import dev.restate.sdk.testing.RestateGrpcChannel;
+import dev.restate.sdk.testing.RestateRunner;
+import dev.restate.sdk.testing.RestateRunnerBuilder;
+import io.grpc.ManagedChannel;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class GreeterTest {
+
+  // Runner runs Restate using testcontainers and registers services
+  @RegisterExtension
+  private static final RestateRunner restateRunner = RestateRunnerBuilder.create()
+          // Service to test
+          .withService(new Greeter())
+          .buildRunner();
+
+  @Test
+  void testGreet(
+          // Channel to send requests to Restate services
+          @RestateGrpcChannel ManagedChannel channel) {
+    GreeterBlockingStub client = GreeterGrpc.newBlockingStub(channel);
+    GreetResponse response = client.greet(GreetRequest.newBuilder().setName("Francesco").build());
+
+    assertEquals("Hello Francesco for the 1 time!", response.getMessage());
+  }
+}
diff --git a/jvm/java-blocking-lambda/.gitignore b/jvm/java-blocking-lambda/.gitignore
new file mode 100644
index 00000000..5ae75d3d
--- /dev/null
+++ b/jvm/java-blocking-lambda/.gitignore
@@ -0,0 +1,32 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+*.iml
diff --git a/jvm/java-blocking-lambda/README.md b/jvm/java-blocking-lambda/README.md
new file mode 100644
index 00000000..51a28d33
--- /dev/null
+++ b/jvm/java-blocking-lambda/README.md
@@ -0,0 +1,32 @@
+# Blocking Lambda example
+
+Sample project configuration of a Restate service using the Java blocking interface and AWS Lambda. It contains:
+
+* [`build.gradle.kts`](build.gradle.kts)
+* [Service interface definition `greeter.proto`](src/main/proto/greeter.proto)
+* [Service class implementation `Greeter`](src/main/java/dev/restate/sdk/examples/Greeter.java)
+* [Lambda handler `LambdaHandler`](src/main/java/dev/restate/sdk/examples/LambdaHandler.java)
+* [Test `GreeterTest`](src/test/java/dev/restate/sdk/examples/GreeterTest.java)
+* [Logging configuration](src/main/resources/log4j2.properties)
+
+## Package
+
+Run:
+
+```shell
+./gradlew shadowJar
+```
+
+You'll find the shadowed jar in the `build` directory.
+
+The class to configure in Lambda is `dev.restate.sdk.examples.LambdaHandler`.
+
+## Running the tests
+
+You can run the tests either via:
+
+```shell
+./gradlew check
+```
+
+Or from the IDE UI.
\ No newline at end of file
diff --git a/jvm/java-blocking-lambda/build.gradle.kts b/jvm/java-blocking-lambda/build.gradle.kts
new file mode 100644
index 00000000..6235cce1
--- /dev/null
+++ b/jvm/java-blocking-lambda/build.gradle.kts
@@ -0,0 +1,67 @@
+import com.google.protobuf.gradle.id
+
+plugins {
+  java
+
+  id("com.google.protobuf") version "0.9.1"
+
+  // To package the dependency for Lambda
+  id("com.github.johnrengelman.shadow") version "7.1.2"
+}
+
+repositories {
+  mavenCentral()
+  // OSSRH Snapshots repo
+  // TODO remove it once we have the proper release
+  maven { url = uri("https://s01.oss.sonatype.org/content/repositories/snapshots/") }
+}
+
+val restateVersion = "0.0.1-SNAPSHOT"
+
+dependencies {
+  // Restate SDK
+  implementation("dev.restate:sdk-java-blocking:$restateVersion")
+  implementation("dev.restate:sdk-lambda:$restateVersion")
+  // To use Jackson to read/write state entries (optional)
+  implementation("dev.restate:sdk-serde-jackson:$restateVersion")
+
+  // Protobuf and grpc dependencies
+  implementation("com.google.protobuf:protobuf-java:3.24.3")
+  implementation("io.grpc:grpc-stub:1.58.0")
+  implementation("io.grpc:grpc-protobuf:1.58.0")
+  // This is needed to compile the @Generated annotation forced by the grpc compiler
+  // See https://github.com/grpc/grpc-java/issues/9153
+  compileOnly("org.apache.tomcat:annotations-api:6.0.53")
+
+  // Logging (optional)
+  implementation("org.apache.logging.log4j:log4j-core:2.20.0")
+
+  // Testing (optional)
+  testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
+  testImplementation("dev.restate:sdk-test:$restateVersion")
+}
+
+// Configure protoc plugin
+protobuf {
+  protoc { artifact = "com.google.protobuf:protoc:3.24.3" }
+
+  // We need both grpc and restate codegen(s) because the restate codegen depends on the grpc one
+  plugins {
+    id("grpc") { artifact = "io.grpc:protoc-gen-grpc-java:1.58.0" }
+    id("restate") { artifact = "dev.restate:protoc-gen-restate-java-blocking:$restateVersion:all@jar" }
+  }
+
+  generateProtoTasks {
+    all().forEach {
+      it.plugins {
+        id("grpc")
+        id("restate")
+      }
+    }
+  }
+}
+
+// Configure test platform
+tasks.withType<Test> {
+  useJUnitPlatform()
+}
diff --git a/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.jar b/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..033e24c4
Binary files /dev/null and b/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.properties b/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..62f495df
--- /dev/null
+++ b/jvm/java-blocking-lambda/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/jvm/java-blocking-lambda/gradlew b/jvm/java-blocking-lambda/gradlew
new file mode 100755
index 00000000..fcb6fca1
--- /dev/null
+++ b/jvm/java-blocking-lambda/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/jvm/java-blocking-lambda/gradlew.bat b/jvm/java-blocking-lambda/gradlew.bat
new file mode 100644
index 00000000..6689b85b
--- /dev/null
+++ b/jvm/java-blocking-lambda/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/Greeter.java b/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/Greeter.java
new file mode 100644
index 00000000..c8120364
--- /dev/null
+++ b/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/Greeter.java
@@ -0,0 +1,23 @@
+package dev.restate.sdk.examples;
+
+import dev.restate.sdk.blocking.RestateContext;
+import dev.restate.sdk.core.CoreSerdes;
+import dev.restate.sdk.core.StateKey;
+import dev.restate.sdk.examples.generated.*;
+
+import static dev.restate.sdk.examples.generated.GreeterProto.*;
+
+public class Greeter extends GreeterRestate.GreeterRestateImplBase {
+
+  private static final StateKey<Integer> COUNT = StateKey.of("count", CoreSerdes.INT);
+
+  @Override
+  public GreetResponse greet(RestateContext context, GreetRequest request) {
+    int count = context.get(COUNT).orElse(1);
+    context.set(COUNT, count + 1);
+
+    return GreetResponse.newBuilder()
+            .setMessage("Hello " + request.getName() + " for the " + count + " time!")
+            .build();
+  }
+}
diff --git a/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/LambdaHandler.java b/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/LambdaHandler.java
new file mode 100644
index 00000000..417f37d5
--- /dev/null
+++ b/jvm/java-blocking-lambda/src/main/java/dev/restate/sdk/examples/LambdaHandler.java
@@ -0,0 +1,11 @@
+package dev.restate.sdk.examples;
+
+import dev.restate.sdk.lambda.BaseRestateLambdaHandler;
+import dev.restate.sdk.lambda.RestateLambdaEndpointBuilder;
+
+public class LambdaHandler extends BaseRestateLambdaHandler {
+  @Override
+  public void register(RestateLambdaEndpointBuilder builder) {
+    builder.withService(new Greeter());
+  }
+}
diff --git a/jvm/java-blocking-lambda/src/main/proto/greeter.proto b/jvm/java-blocking-lambda/src/main/proto/greeter.proto
new file mode 100644
index 00000000..74139459
--- /dev/null
+++ b/jvm/java-blocking-lambda/src/main/proto/greeter.proto
@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package greeter;
+
+import "dev/restate/ext.proto";
+
+option java_package = "dev.restate.sdk.examples.generated";
+option java_outer_classname = "GreeterProto";
+
+service Greeter {
+  option (dev.restate.ext.service_type) = KEYED;
+
+  rpc Greet (GreetRequest) returns (GreetResponse);
+}
+
+message GreetRequest {
+  string name = 1 [(dev.restate.ext.field) = KEY];
+}
+
+message GreetResponse {
+  string message = 1;
+}
diff --git a/jvm/java-blocking-lambda/src/main/resources/log4j2.properties b/jvm/java-blocking-lambda/src/main/resources/log4j2.properties
new file mode 100644
index 00000000..130894e5
--- /dev/null
+++ b/jvm/java-blocking-lambda/src/main/resources/log4j2.properties
@@ -0,0 +1,18 @@
+# Set to debug or trace if log4j initialization is failing
+status = warn
+
+# Console appender configuration
+appender.console.type = Console
+appender.console.name = consoleLogger
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %-5p %notEmpty{[%X{restateServiceMethod}]}%notEmpty{[%X{restateInvocationId}]} %c - %m%n
+
+# Restate logs to debug level
+logger.app.name = dev.restate
+logger.app.level = debug
+logger.app.additivity = false
+logger.app.appenderRef.console.ref = consoleLogger
+
+# Root logger
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = consoleLogger
\ No newline at end of file
diff --git a/jvm/java-blocking-lambda/src/test/java/dev/restate/sdk/examples/GreeterTest.java b/jvm/java-blocking-lambda/src/test/java/dev/restate/sdk/examples/GreeterTest.java
new file mode 100644
index 00000000..9f6f94c3
--- /dev/null
+++ b/jvm/java-blocking-lambda/src/test/java/dev/restate/sdk/examples/GreeterTest.java
@@ -0,0 +1,34 @@
+package dev.restate.sdk.examples;
+
+import dev.restate.sdk.examples.generated.GreeterGrpc;
+import dev.restate.sdk.examples.generated.GreeterGrpc.GreeterBlockingStub;
+import dev.restate.sdk.examples.generated.GreeterProto.GreetRequest;
+import dev.restate.sdk.examples.generated.GreeterProto.GreetResponse;
+import dev.restate.sdk.testing.RestateGrpcChannel;
+import dev.restate.sdk.testing.RestateRunner;
+import dev.restate.sdk.testing.RestateRunnerBuilder;
+import io.grpc.ManagedChannel;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class GreeterTest {
+
+  // Runner runs Restate using testcontainers and registers services
+  @RegisterExtension
+  private static final RestateRunner restateRunner = RestateRunnerBuilder.create()
+          // Service to test
+          .withService(new Greeter())
+          .buildRunner();
+
+  @Test
+  void testGreet(
+          // Channel to send requests to Restate services
+          @RestateGrpcChannel ManagedChannel channel) {
+    GreeterBlockingStub client = GreeterGrpc.newBlockingStub(channel);
+    GreetResponse response = client.greet(GreetRequest.newBuilder().setName("Francesco").build());
+
+    assertEquals("Hello Francesco for the 1 time!", response.getMessage());
+  }
+}
diff --git a/jvm/kotlin-http/.gitignore b/jvm/kotlin-http/.gitignore
new file mode 100644
index 00000000..5ae75d3d
--- /dev/null
+++ b/jvm/kotlin-http/.gitignore
@@ -0,0 +1,32 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+*.iml
diff --git a/jvm/kotlin-http/README.md b/jvm/kotlin-http/README.md
new file mode 100644
index 00000000..ca6ea9ae
--- /dev/null
+++ b/jvm/kotlin-http/README.md
@@ -0,0 +1,29 @@
+# Kotlin HTTP example
+
+Sample project configuration of a Restate service using the Kotlin coroutines interface and HTTP server. It contains:
+
+* [`build.gradle.kts`](build.gradle.kts)
+* [Service interface definition `greeter.proto`](src/main/proto/greeter.proto)
+* [Service class implementation `Greeter`](src/main/kotlin/dev/restate/sdk/examples/Greeter.kt)
+* [Test `GreeterTest`](src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt)
+* [Logging configuration](src/main/resources/log4j2.properties)
+
+## Running the example
+
+You can run the Kotlin greeter service via:
+
+```shell
+./gradlew run
+```
+
+Or from the IDE UI.
+
+## Running the tests
+
+You can run the tests either via:
+
+```shell
+./gradlew check
+```
+
+Or from the IDE UI.
diff --git a/jvm/kotlin-http/build.gradle.kts b/jvm/kotlin-http/build.gradle.kts
new file mode 100644
index 00000000..aeb8c5cb
--- /dev/null
+++ b/jvm/kotlin-http/build.gradle.kts
@@ -0,0 +1,88 @@
+import com.google.protobuf.gradle.id
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+  kotlin("jvm") version "1.9.10"
+  application
+
+  id("com.google.protobuf") version "0.9.1"
+}
+
+repositories {
+  mavenCentral()
+  // OSSRH Snapshots repo
+  // TODO remove it once we have the proper release
+  maven { url = uri("https://s01.oss.sonatype.org/content/repositories/snapshots/") }
+}
+
+val restateVersion = "0.0.1-SNAPSHOT"
+
+dependencies {
+  // Restate SDK
+  implementation("dev.restate:sdk-kotlin:$restateVersion")
+  implementation("dev.restate:sdk-http-vertx:$restateVersion")
+  // To use Jackson to read/write state entries (optional)
+  implementation("dev.restate:sdk-serde-jackson:$restateVersion")
+
+  // Protobuf and grpc dependencies (we need the Java dependencies as well because the Kotlin dependencies rely on Java)
+  implementation("com.google.protobuf:protobuf-java:3.24.3")
+  implementation("com.google.protobuf:protobuf-kotlin:3.24.3")
+  implementation("io.grpc:grpc-stub:1.58.0")
+  implementation("io.grpc:grpc-protobuf:1.58.0")
+  implementation("io.grpc:grpc-kotlin-stub:1.4.0") { exclude("javax.annotation", "javax.annotation-api") }
+  // This is needed to compile the @Generated annotation forced by the grpc compiler
+  // See https://github.com/grpc/grpc-java/issues/9153
+  compileOnly("org.apache.tomcat:annotations-api:6.0.53")
+
+  // To specify the coroutines dispatcher
+  implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
+
+  // Logging (optional)
+  implementation("org.apache.logging.log4j:log4j-core:2.20.0")
+
+  // Testing (optional)
+  testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
+  testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3")
+  testImplementation("dev.restate:sdk-test:$restateVersion")
+}
+
+// Setup Java/Kotlin compiler target
+java {
+  toolchain {
+    languageVersion.set(JavaLanguageVersion.of(17))
+  }
+}
+
+// Configure protoc plugin
+protobuf {
+  protoc { artifact = "com.google.protobuf:protoc:3.24.3" }
+
+  plugins {
+    id("grpc") { artifact = "io.grpc:protoc-gen-grpc-java:1.58.0" }
+    id("grpckt") { artifact = "io.grpc:protoc-gen-grpc-kotlin:1.4.0:jdk8@jar" }
+  }
+
+  generateProtoTasks {
+    all().forEach {
+      // We need both java and kotlin codegen(s) because the kotlin protobuf/grpc codegen depends on the java ones
+      it.plugins {
+        id("grpc")
+        id("grpckt")
+      }
+      it.builtins {
+        java {}
+        id("kotlin")
+      }
+    }
+  }
+}
+
+// Configure test platform
+tasks.withType<Test> {
+  useJUnitPlatform()
+}
+
+// Configure main class
+application {
+  mainClass.set("dev.restate.sdk.examples.GreeterKt")
+}
diff --git a/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.jar b/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..033e24c4
Binary files /dev/null and b/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.properties b/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..62f495df
--- /dev/null
+++ b/jvm/kotlin-http/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/jvm/kotlin-http/gradlew b/jvm/kotlin-http/gradlew
new file mode 100755
index 00000000..fcb6fca1
--- /dev/null
+++ b/jvm/kotlin-http/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/jvm/kotlin-http/gradlew.bat b/jvm/kotlin-http/gradlew.bat
new file mode 100644
index 00000000..6689b85b
--- /dev/null
+++ b/jvm/kotlin-http/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/jvm/kotlin-http/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt b/jvm/kotlin-http/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt
new file mode 100644
index 00000000..6baed897
--- /dev/null
+++ b/jvm/kotlin-http/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt
@@ -0,0 +1,37 @@
+package dev.restate.sdk.examples
+
+import dev.restate.sdk.core.CoreSerdes
+import dev.restate.sdk.core.StateKey
+import dev.restate.sdk.examples.generated.*
+import dev.restate.sdk.examples.generated.GreeterProto.GreetRequest
+import dev.restate.sdk.examples.generated.GreeterProto.GreetResponse
+import dev.restate.sdk.kotlin.RestateCoroutineService
+import dev.restate.sdk.http.vertx.RestateHttpEndpointBuilder
+import kotlinx.coroutines.Dispatchers
+
+class Greeter :
+    // Use Dispatchers.Unconfined as the Executor/thread pool is managed by the SDK itself.
+    GreeterGrpcKt.GreeterCoroutineImplBase(Dispatchers.Unconfined),
+    RestateCoroutineService {
+
+  companion object {
+    private val COUNT = StateKey.of("count", CoreSerdes.INT)
+  }
+
+  override suspend fun greet(request: GreetRequest): GreetResponse {
+    val ctx = restateContext()
+
+    val count = ctx.get(COUNT) ?: 1
+    ctx.set(COUNT, count + 1)
+
+    return greetResponse {
+      message = "Hello ${request.name} for the $count time!"
+    }
+  }
+}
+
+fun main() {
+  RestateHttpEndpointBuilder
+          .builder()
+          .withService(Greeter()).buildAndListen()
+}
diff --git a/jvm/kotlin-http/src/main/proto/greeter.proto b/jvm/kotlin-http/src/main/proto/greeter.proto
new file mode 100644
index 00000000..74139459
--- /dev/null
+++ b/jvm/kotlin-http/src/main/proto/greeter.proto
@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package greeter;
+
+import "dev/restate/ext.proto";
+
+option java_package = "dev.restate.sdk.examples.generated";
+option java_outer_classname = "GreeterProto";
+
+service Greeter {
+  option (dev.restate.ext.service_type) = KEYED;
+
+  rpc Greet (GreetRequest) returns (GreetResponse);
+}
+
+message GreetRequest {
+  string name = 1 [(dev.restate.ext.field) = KEY];
+}
+
+message GreetResponse {
+  string message = 1;
+}
diff --git a/jvm/kotlin-http/src/main/resources/log4j2.properties b/jvm/kotlin-http/src/main/resources/log4j2.properties
new file mode 100644
index 00000000..130894e5
--- /dev/null
+++ b/jvm/kotlin-http/src/main/resources/log4j2.properties
@@ -0,0 +1,18 @@
+# Set to debug or trace if log4j initialization is failing
+status = warn
+
+# Console appender configuration
+appender.console.type = Console
+appender.console.name = consoleLogger
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %-5p %notEmpty{[%X{restateServiceMethod}]}%notEmpty{[%X{restateInvocationId}]} %c - %m%n
+
+# Restate logs to debug level
+logger.app.name = dev.restate
+logger.app.level = debug
+logger.app.additivity = false
+logger.app.appenderRef.console.ref = consoleLogger
+
+# Root logger
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = consoleLogger
\ No newline at end of file
diff --git a/jvm/kotlin-http/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt b/jvm/kotlin-http/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt
new file mode 100644
index 00000000..863fc76b
--- /dev/null
+++ b/jvm/kotlin-http/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt
@@ -0,0 +1,33 @@
+package dev.restate.sdk.examples
+
+import dev.restate.sdk.examples.generated.GreeterGrpcKt.GreeterCoroutineStub
+import dev.restate.sdk.examples.generated.greetRequest
+import dev.restate.sdk.testing.RestateGrpcChannel
+import dev.restate.sdk.testing.RestateRunner
+import dev.restate.sdk.testing.RestateRunnerBuilder
+import io.grpc.ManagedChannel
+import kotlinx.coroutines.test.runTest
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.RegisterExtension
+
+class GreeterTest {
+    companion object {
+        // Runner runs Restate using testcontainers and registers services
+        @RegisterExtension
+        private val restateRunner: RestateRunner = RestateRunnerBuilder.create()
+                // Service to test
+                .withService(Greeter())
+                .buildRunner()
+    }
+
+    @Test
+    fun testGreet(
+            // Channel to send requests to Restate services
+            @RestateGrpcChannel channel: ManagedChannel) = runTest {
+        val client = GreeterCoroutineStub(channel)
+        val response = client.greet(greetRequest { name = "Francesco" })
+
+        assertEquals("Hello Francesco for the 1 time!", response.getMessage())
+    }
+}
diff --git a/jvm/kotlin-lambda/.gitignore b/jvm/kotlin-lambda/.gitignore
new file mode 100644
index 00000000..5ae75d3d
--- /dev/null
+++ b/jvm/kotlin-lambda/.gitignore
@@ -0,0 +1,32 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+*.iml
diff --git a/jvm/kotlin-lambda/README.md b/jvm/kotlin-lambda/README.md
new file mode 100644
index 00000000..e815b897
--- /dev/null
+++ b/jvm/kotlin-lambda/README.md
@@ -0,0 +1,32 @@
+# Kotlin Lambda example
+
+Sample project configuration of a Restate service using the Kotlin coroutines interface and AWS Lambda. It contains:
+
+* [`build.gradle.kts`](build.gradle.kts)
+* [Service interface definition `greeter.proto`](src/main/proto/greeter.proto)
+* [Service class implementation `Greeter`](src/main/kotlin/dev/restate/sdk/examples/Greeter.kt)
+* [Lambda handler `LambdaHandler`](src/main/kotlin/dev/restate/sdk/examples/LambdaHandler.kt)
+* [Test `GreeterTest`](src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt)
+* [Logging configuration](src/main/resources/log4j2.properties)
+
+## Package
+
+Run:
+
+```shell
+./gradlew shadowJar
+```
+
+You'll find the shadowed jar in the `build` directory.
+
+The class to configure in Lambda is `dev.restate.sdk.examples.LambdaHandler`.
+
+## Running the tests
+
+You can run the tests either via:
+
+```shell
+./gradlew check
+```
+
+Or from the IDE UI.
\ No newline at end of file
diff --git a/jvm/kotlin-lambda/build.gradle.kts b/jvm/kotlin-lambda/build.gradle.kts
new file mode 100644
index 00000000..2acf1057
--- /dev/null
+++ b/jvm/kotlin-lambda/build.gradle.kts
@@ -0,0 +1,85 @@
+import com.google.protobuf.gradle.id
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+  kotlin("jvm") version "1.9.10"
+
+  id("com.google.protobuf") version "0.9.1"
+
+  // To package the dependency for Lambda
+  id("com.github.johnrengelman.shadow") version "7.1.2"
+}
+
+repositories {
+  mavenCentral()
+  // OSSRH Snapshots repo
+  // TODO remove it once we have the proper release
+  maven { url = uri("https://s01.oss.sonatype.org/content/repositories/snapshots/") }
+}
+
+val restateVersion = "0.0.1-SNAPSHOT"
+
+dependencies {
+  // Restate SDK
+  implementation("dev.restate:sdk-kotlin:$restateVersion")
+  implementation("dev.restate:sdk-lambda:$restateVersion")
+  // To use Jackson to read/write state entries (optional)
+  implementation("dev.restate:sdk-serde-jackson:$restateVersion")
+
+  // Protobuf and grpc dependencies (we need the Java dependencies as well because the Kotlin dependencies rely on Java)
+  implementation("com.google.protobuf:protobuf-java:3.24.3")
+  implementation("com.google.protobuf:protobuf-kotlin:3.24.3")
+  implementation("io.grpc:grpc-stub:1.58.0")
+  implementation("io.grpc:grpc-protobuf:1.58.0")
+  implementation("io.grpc:grpc-kotlin-stub:1.4.0") { exclude("javax.annotation", "javax.annotation-api") }
+  // This is needed to compile the @Generated annotation forced by the grpc compiler
+  // See https://github.com/grpc/grpc-java/issues/9153
+  compileOnly("org.apache.tomcat:annotations-api:6.0.53")
+
+  // To specify the coroutines dispatcher
+  implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
+
+  // Logging (optional)
+  implementation("org.apache.logging.log4j:log4j-core:2.20.0")
+
+  // Testing (optional)
+  testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
+  testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3")
+  testImplementation("dev.restate:sdk-test:$restateVersion")
+}
+
+// Setup Java/Kotlin compiler target
+java {
+  toolchain {
+    languageVersion.set(JavaLanguageVersion.of(17))
+  }
+}
+
+// Configure protoc plugin
+protobuf {
+  protoc { artifact = "com.google.protobuf:protoc:3.24.3" }
+
+  plugins {
+    id("grpc") { artifact = "io.grpc:protoc-gen-grpc-java:1.58.0" }
+    id("grpckt") { artifact = "io.grpc:protoc-gen-grpc-kotlin:1.4.0:jdk8@jar" }
+  }
+
+  generateProtoTasks {
+    all().forEach {
+      // We need both java and kotlin codegen(s) because the kotlin protobuf/grpc codegen depends on the java ones
+      it.plugins {
+        id("grpc")
+        id("grpckt")
+      }
+      it.builtins {
+        java {}
+        id("kotlin")
+      }
+    }
+  }
+}
+
+// Configure test platform
+tasks.withType<Test> {
+  useJUnitPlatform()
+}
\ No newline at end of file
diff --git a/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.jar b/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..033e24c4
Binary files /dev/null and b/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.properties b/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..62f495df
--- /dev/null
+++ b/jvm/kotlin-lambda/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/jvm/kotlin-lambda/gradlew b/jvm/kotlin-lambda/gradlew
new file mode 100755
index 00000000..fcb6fca1
--- /dev/null
+++ b/jvm/kotlin-lambda/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/jvm/kotlin-lambda/gradlew.bat b/jvm/kotlin-lambda/gradlew.bat
new file mode 100644
index 00000000..6689b85b
--- /dev/null
+++ b/jvm/kotlin-lambda/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt b/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt
new file mode 100644
index 00000000..638c6a3b
--- /dev/null
+++ b/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/Greeter.kt
@@ -0,0 +1,30 @@
+package dev.restate.sdk.examples
+
+import dev.restate.sdk.core.CoreSerdes
+import dev.restate.sdk.core.StateKey
+import dev.restate.sdk.examples.generated.*
+import dev.restate.sdk.examples.generated.GreeterProto.GreetRequest
+import dev.restate.sdk.examples.generated.GreeterProto.GreetResponse
+import dev.restate.sdk.kotlin.RestateCoroutineService
+import kotlinx.coroutines.Dispatchers
+
+class Greeter :
+    // Use Dispatchers.Unconfined as the Executor/thread pool is managed by the SDK itself.
+    GreeterGrpcKt.GreeterCoroutineImplBase(Dispatchers.Unconfined),
+    RestateCoroutineService {
+
+  companion object {
+    private val COUNT = StateKey.of("count", CoreSerdes.INT)
+  }
+
+  override suspend fun greet(request: GreetRequest): GreetResponse {
+    val ctx = restateContext()
+
+    val count = ctx.get(COUNT) ?: 1
+    ctx.set(COUNT, count + 1)
+
+    return greetResponse {
+      message = "Hello ${request.name} for the $count time!"
+    }
+  }
+}
diff --git a/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/LambdaHandler.kt b/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/LambdaHandler.kt
new file mode 100644
index 00000000..b95f2708
--- /dev/null
+++ b/jvm/kotlin-lambda/src/main/kotlin/dev/restate/sdk/examples/LambdaHandler.kt
@@ -0,0 +1,10 @@
+package dev.restate.sdk.examples
+
+import dev.restate.sdk.lambda.BaseRestateLambdaHandler
+import dev.restate.sdk.lambda.RestateLambdaEndpointBuilder
+
+class LambdaHandler : BaseRestateLambdaHandler() {
+    override fun register(builder: RestateLambdaEndpointBuilder) {
+        builder.withService(Greeter())
+    }
+}
diff --git a/jvm/kotlin-lambda/src/main/proto/greeter.proto b/jvm/kotlin-lambda/src/main/proto/greeter.proto
new file mode 100644
index 00000000..74139459
--- /dev/null
+++ b/jvm/kotlin-lambda/src/main/proto/greeter.proto
@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package greeter;
+
+import "dev/restate/ext.proto";
+
+option java_package = "dev.restate.sdk.examples.generated";
+option java_outer_classname = "GreeterProto";
+
+service Greeter {
+  option (dev.restate.ext.service_type) = KEYED;
+
+  rpc Greet (GreetRequest) returns (GreetResponse);
+}
+
+message GreetRequest {
+  string name = 1 [(dev.restate.ext.field) = KEY];
+}
+
+message GreetResponse {
+  string message = 1;
+}
diff --git a/jvm/kotlin-lambda/src/main/resources/META-INF/services/dev.restate.sdk.lambda.LambdaRestateServerFactory b/jvm/kotlin-lambda/src/main/resources/META-INF/services/dev.restate.sdk.lambda.LambdaRestateServerFactory
new file mode 100644
index 00000000..297dab9e
--- /dev/null
+++ b/jvm/kotlin-lambda/src/main/resources/META-INF/services/dev.restate.sdk.lambda.LambdaRestateServerFactory
@@ -0,0 +1 @@
+dev.restate.sdk.examples.LambdaFactory
\ No newline at end of file
diff --git a/jvm/kotlin-lambda/src/main/resources/log4j2.properties b/jvm/kotlin-lambda/src/main/resources/log4j2.properties
new file mode 100644
index 00000000..130894e5
--- /dev/null
+++ b/jvm/kotlin-lambda/src/main/resources/log4j2.properties
@@ -0,0 +1,18 @@
+# Set to debug or trace if log4j initialization is failing
+status = warn
+
+# Console appender configuration
+appender.console.type = Console
+appender.console.name = consoleLogger
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %-5p %notEmpty{[%X{restateServiceMethod}]}%notEmpty{[%X{restateInvocationId}]} %c - %m%n
+
+# Restate logs to debug level
+logger.app.name = dev.restate
+logger.app.level = debug
+logger.app.additivity = false
+logger.app.appenderRef.console.ref = consoleLogger
+
+# Root logger
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = consoleLogger
\ No newline at end of file
diff --git a/jvm/kotlin-lambda/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt b/jvm/kotlin-lambda/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt
new file mode 100644
index 00000000..863fc76b
--- /dev/null
+++ b/jvm/kotlin-lambda/src/test/kotlin/dev/restate/sdk/examples/GreeterTest.kt
@@ -0,0 +1,33 @@
+package dev.restate.sdk.examples
+
+import dev.restate.sdk.examples.generated.GreeterGrpcKt.GreeterCoroutineStub
+import dev.restate.sdk.examples.generated.greetRequest
+import dev.restate.sdk.testing.RestateGrpcChannel
+import dev.restate.sdk.testing.RestateRunner
+import dev.restate.sdk.testing.RestateRunnerBuilder
+import io.grpc.ManagedChannel
+import kotlinx.coroutines.test.runTest
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.RegisterExtension
+
+class GreeterTest {
+    companion object {
+        // Runner runs Restate using testcontainers and registers services
+        @RegisterExtension
+        private val restateRunner: RestateRunner = RestateRunnerBuilder.create()
+                // Service to test
+                .withService(Greeter())
+                .buildRunner()
+    }
+
+    @Test
+    fun testGreet(
+            // Channel to send requests to Restate services
+            @RestateGrpcChannel channel: ManagedChannel) = runTest {
+        val client = GreeterCoroutineStub(channel)
+        val response = client.greet(greetRequest { name = "Francesco" })
+
+        assertEquals("Hello Francesco for the 1 time!", response.getMessage())
+    }
+}