Issue: SPR-17559

Issue: SPR-17556

Issue: SPR-17540

Includes rollback to Hibernate ORM 5.1.16 for integration tests.

Includes Hibernate ORM 5.1.17 for integration tests.

Issue: SPR-17557

Issue: SPR-17401

Response status 415 (unsupported media type) reported as of 416 (which is Range Not Satisfiable), mismatching with superclass constructor parameter HttpStatus.UNSUPPORTED_MEDIA_TYPE

Prior to this change, ResourceUrlEncodingFilter would try to resolve
the resource path using request URL without removing fragment first,
whereas only paths should be used.

This commit synchronizes behavior of ResourceUrlEncodingFilter with
behavior of ResourceUrlProvider.

Issue: SPR-17535

Issue: SPR-17537

Issue: SPR-17536

ResolvableType-based matching consistently respects generic factory method return type (even for pre-initialized raw singleton instance)

Issue: SPR-17524

Issue: SPR-17439

Issue: SPR-17533

Changed WebFlux.fn docs to use router function builder.

Issue: SPR-17016

Prior to this commit, parallel invocations of
MethodParameter.findParameterIndex() (invoked indirectly via
SynthesizingMethodParameter.forParameter() and
MethodParameter.forParameter()) could intermittently lead to an
IllegalArgumentException being thrown due to a race condition in the
internal implementation of the JDK's
java.lang.reflect.Executable.getParameters() method.

This commit addresses this issue by introducing a fallback for-loop
that iterates over the candidate parameters a second time using
equality checks instead of identity checks.

Issue: SPR-17534

Prior to this commit, parallel execution of @BeforeEach and @AfterEach
methods that accepted @Autowired arguments would fail intermittently
due to a race condition in the internal implementation of the JDK's
java.lang.reflect.Executable.getParameters() method.

This commit addresses this issue by creating instances of
SynthesizingMethodParameter via
SynthesizingMethodParameter.forExecutable(Executable, int) instead of
SynthesizingMethodParameter.forParameter(Parameter), since the latter
looks up the parameter index by iterating over the array returned by
Executable.getParameters() (which is not thread-safe).

Issue: SPR-17533

This commit introduces a new readMessageSize(DataBuffer input) private
method, inspired from CodedInputStream#readRawVarint32(int, InputStream)
and adapted for DataBuffer using MessageDecoderFunction fields in
order to support use cases where the message size is split between
distinct chunks.

It also fixes handling of end of streams by using
DataBuffer#readableByteCount instead of -1 which is only relevant with
InputStream.

Issue: SPR-17429

Issue: SPR-17439

Issue: SPR-15540

Issue: SPR-17322

LocalResourceCache properly initializes cacheLimit on construction.

Issue: SPR-17527

Issue: SPR-17232

Issue: SPR-17525

Issue: SPR-17522