fix: java installation (#2394)

* fix: java installation

* fix: git

* feat: confirm installation

Docker/jenkins/Jenkins-CI-Worker/Dockerfile

@@ -34,11 +34,10 @@ RUN set -xe && apt-get update \
      zlib1g-dev \
      zsh \
      ca-certificates-java \
-     openjdk-11-jre-headless \
   && ln -s /usr/bin/lua5.3 /usr/local/bin/lua
 
 # Use jdk11
-ENV JAVA_HOME="/usr/lib/jvm/java-11-openjdk-amd64"
+ENV JAVA_HOME="/opt/java/openjdk"
 ENV PATH="$JAVA_HOME/bin:$PATH"
 
 COPY ./certfix.sh /certfix.sh
@@ -93,7 +92,7 @@ RUN chmod +x /root/tmp/install-python3.8.sh; sync && \
         unlink /usr/bin/python3 && \
         ln -s /usr/local/bin/python3.8 /usr/bin/python3
 
-RUN apt-get install python3-distutils
+RUN apt-get install -y python3-distutils
 
 # Fix shebang for lsb_release
 RUN sed -i 's/python3/python3.8/' /usr/bin/lsb_release && \

Docker/jenkins/Jenkins-Worker/Dockerfile

@@ -8,6 +8,7 @@ RUN set -xe && apt-get update && apt-get install -y apt-utils dnsutils build-ess
 
 RUN apt-get update \
   && apt-get install -y lsb-release \
+      git \
      apt-transport-https \
      r-base \
      libffi-dev \
@@ -36,11 +37,6 @@ RUN apt-get update \
 # install Ruby.
 RUN apt-get install -y ruby-full
 
-# install GIT from buster-backports
-RUN echo "deb http://deb.debian.org/debian buster-backports main" > /etc/apt/sources.list.d/buster-backports.list \
-  && apt-get update \
-  && apt-get -t=buster-backports -y install git=1:2.30.*
-
 #
 # install docker tools:
 #