0.42.17

This is a minor maintenance release appropriate for all ServiceTalk users that contains several useful improvements and bug fixes. This release is expected to be a "drop-in" replacement for all prior 0.42.X releases.
As the ServiceTalk API advances towards a 1.0 release all users are strongly encouraged to update their applications to eliminate all use of deprecated APIs. Existing deprecated APIs will be removed in a future ServiceTalk release without further additional notice. If you encounter problems replacing deprecated usages please create a support issue.

Changes

API Deprecations

• 43328e1 - gRPC request/response context to pass data between gRPC and HTTP layers (#2311)
  • Deprecate DefaultGrpcClientMetadata.INSTANCE constant and the same constant in all generated subtypes. Instead, always create a new instance of DefaultGrpcClientMetadata. If the INSTANCE is used, any manual attempt to access newly added request/response context will throw UnsupportedOperationException;
  • In the generated gRPC code, deprecate endpoints that operate with GrpcPayloadWriter. Users should migrate to the new overload that has BlockingStreamingGrpcServerResponse instead of GrpcPayloadWriter;
• 5e5b746 - Deprecate CharSequences.asciiStringIndexOf(...) (#2353)
  • Users should use CharSequences#indexOf(...) instead.

New features

• 43328e1 - gRPC request/response context to pass data between gRPC and HTTP layers (#2311)
  • No need to use AsyncContext anymore to pass HTTP headers to/from gRPC endpoint.
• 40d2f02 - HTTP/2 set initial settings (#2341, #2346, #2361)
  • New API to tune any defined HTTP/2 settings parameters and connection flow-control window.
• 6b6b162 - Introduce IdleTimeoutConnectionFilter as alternative to IDLE_TIMEOUT (#2340)
  • Helps to track idle connections at L7 OSI layer rather than L4.

Bug Fixes

• 1681caf - HTTP/2 avoid premature connection closure when negotiating via ALPN (#2342)
• f11310c - AsciiBuffer.indexOf returns incorrect result for 2-bytes characters (#2352)
• 2928a29 - Publisher#flatMapMerge allow terminal propagation after invalid demand (#2348)

Improvements

• 8efc07a - Override toString() for delegating connection (#2335)
• b7b71bc - Improve DefaultHttp2Settings#toString() (#2347)
• be079c1 - Use IdleTimeoutConnectionFilter instead of SocketOption by default (#2349)
• 49f5f8f - Improve parsing of Set-Cookie headers (#2329)
• 9c668f4 - Allow users access payloadBodyInputStream() multiple times (#2355)

Dependencies

• 3d8d0e8 - Update Netty 4.1.79 -> 4.1.82 (#2350, #2363)
• 4f1dca1 - Update netty-incubator-transport-native-io_uring 0.0.14 -> 0.0.15 (#2357)
• 0e7eb61 - Update Jackson 2.13.3 -> 2.13.4 (#2358)

Tests improvements

• ba7e826 - Validate HTTP/2 messages with malformed headers are rejected (#2359)
• 8bc579c - Update grpc-java 1.45.1 -> 1.49.0 to test compatibility with the latest release

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Thank you

Every idea, review, and bug-report counts and so we thought it is worth mentioning those who helped in this area. Please report any unintended omission.

@chrisvest
@idelpivnitskiy
@Scottmitch
@tkountis