Prior to this commit, calls to `MimeType` and `MediaType` would create a
significant amount of garbage:
* during startup time, in the static sections of `MimeType` and
`MediaType` when creating well-known types
* at runtime, when parsing media types for content negotiation or
writing known media types as strings in HTTP response headers
This commit does the following:
* Avoid parsing the well-known types and use regular constructors
instead
* Cache types in a simple LRU cache once they've been parsed, since an
application is likely to deal with a limited set of types
* Avoid using `java.util.stream.Stream` in hot code paths
Benchmarks show that a complete revision of the `MimeTypeUtils` parser
is not required, since the LRU cache is enough there.
Closes gh-22340
Prior to this commit, profiling sessions would show that using
`java.util.stream.Stream` in some hot code paths creates significant
garbage.
Where streams aren't really required, this commit turns those snippets
into imperative logic because those are likely to be called once or
multiple times per request.
Closes gh-22341
Prior to this commit, `DataBuffer.write` would throw an
`IllegalStateException` when called with an empty `String`, since the
`CharsetEncoder` would be flushed on an incorrent state.
This commit skips entirely the encoding phase for empty `String`.
Fixes#22262
This allows for proper nested type conversion in @Value Optional fields analogous to method parameters, through a new TypeDescriptor-based method in the TypeConverter SPI. As an additional and less involved measure that is worth backporting, DefaultListableBeanFactory defensively checks for pre-converted Optional wrappers.
Issue: SPR-17607
Aalto's InputFactoryImpl already disables loading of external entities
by default (property "javax.xml.stream.isSupportingExternalEntities").
This commit goes further by applying the same defensive measures as we
do elsewhere for XMLInputFactory, which disables DTD completely.
Arguably there is no good reason to enable that by default in WebFlux.
Typically a straight up equals as well as Collections#contains
checks for MediaType.ALL is susceptible to the presence of
media type parameters.
This commits adds equalsTypeAndSubtype as well as an
isPresentIn(Collection<MimeType>) methods to MimeType to faciliate
with checks for MediaType.ALL.
Issue: SPR-17550
Prior to this commit, one could write a `CharSequence` to an existing
`DataBuffer` instance by turning it into a byte array or `ByteBuffer`
first. This had the following disadvantages:
1. Memory allocation was not efficient (not leveraging pooled memory
when available)
2. Dealing with `CharsetEncoder` is not always easy
3. `DataBuffer` implementations, like `NettyDataBuffer` can use
optimized implementations in some cases
This commit adds a new `DataBuffer#write(CharSequence, Charset)` method
for those cases and also an `ensureCapacity` method useful for checking
that the current buffer has enough capacity to write to it..
Issue: SPR-17558
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
This commit reverts the first optimizations listed in
fa096dc60f, as the default delimiters
do vary, namely by the charset given in the message mime type.
The mimetype charset might not be compatible with ASCII (i.e. anything
but UTF-8 or ISO-8859-1, for instance it might be UTF-16), and will not
successfully find the default delimiters as a consequence.
Added test to indicate the bug.
This CGLIB upgrade literally does not make any difference to Spring users since its only purpose is a default ASM7 declaration in its AsmApi class (which we patched a month ago). We nevertheless leave our local AsmApi copy in place for the time being, allowing for an individual upgrade of the declared ASM API version in the future.
Issue: SPR-17267
Issue: SPR-17371
1. Avoid re-creating the List with delimited byte arrays on every
request if using the default delimiters which don't vary by charset.
2. Replace flatMap with flatMapIterable for splitOnDelimiter.
3. Avoid going through DataBufferUtils#join, and unnecessarily creating
Flux from the List, since the join method needs a list anyway.
Fix ResourceRegionEncoder so that it checks for resource existance
before writing boundaries. Also defer data buffer allocation until
necessary.
Issue: SPR-17419
As discussed in KT-25165, from a Kotlin POV enum constructors
have no parameter, this is an "implementation detail"
required for running on the JVM, so it seems relevant to skip
Kotlin reflection in that case and just delegate to Java
reflection.
Issue: SPR-16931
Includes use of Files.getLastModifiedTime for NIO Paths, preservation of NIO-based resolution on createRelative, deprecation of PathResource, and consistent use of getContentLengthLong over getContentLength.
Issue: SPR-17320
This was a package private class in spring-messaging since 5.0, and was
recently made public in 5.1. This commit promotes it to spring-core
where it belongs next to all other ListenableFuture support classes.
Follow-up refactoring for SPR-17336
Previously, both nullsLow(Comparator<T>) and
nullsHigh(Comparator<T>) returned a
NullSafeComparator which treated nulls as being
high. This commit corrects this typo.
Prefix the opening brace with a single space in some classes.
Replace tab character with space in javadoc of AttributeAccessor.
Also fix some other trivial formatting errors.
Closes gh-1979
1. Helper method to eliminate duplication in formatting (de-)serialized
values for logging introduced with prior commit #e62298.
2. Helper method for TRACE vs DEBUG logging with different details.
Issue: SPR-17254
At DEBUG show up to 100 chars, at TRACE show full formatted value.
Note that the formatValue helper method is duplicated a number of times
in this commit. A utility method will likely be added in spring-core
through an extra commit.
Issue: SPR-17254
This commit makes sure that in DataBufferUtils.write, any received data
buffers are returned as part of the returned flux, even when an error
occurs or is received.
Issue: SPR-16782
Before this commit, Kotlin inner class nested configuration
handling thrown an IndexOutOfBoundsException due to bogus filtering
of its constructor parameter reference to an instance of the outer
class.
This commit keep constructor parameter of type INSTANCE in order to
throw a more meaningful NoSuchBeanDefinitionException.
Issue: SPR-17222
This commit adds decoder/message-reader tests for errors in
the source data buffer publisher. Because the tests extend
AbstractDataBufferAllocatingTestCase, they also check whether
the buffers that precede the error in the stream are properly
released.
Issue: SPR-17025
Includes caching of declared annotation arrays and combined searching for several annotation types (used in SpringCacheAnnotationParser).
Issue: SPR-16933
Brian Clozel
Juergen Hoeller
Sebastien Deleuze
stsypanov
Arjen Poutsma
Andrzej Leśkiewicz
Rossen Stoyanchev
igor-suhorukov
Sam Brannen
Vojtech Janota
Stephane Nicoll
Hanope
Dimitrios Liapis
Sam Hubbard
www
Marten Deinum
Sergey Chupov
Kazuhiro Sera