Prior to this commit, all clients of
ControllerAdviceBean.findAnnotatedBeans() sorted the returned list
manually. In addition, clients within the core Spring Framework
unnecessarily used AnnotationAwareOrderComparator instead of
OrderComparator to sort the list.
This commit presorts the ControllerAdviceBean list using OrderComparator
directly within ControllerAdviceBean.findAnnotatedBeans().
Closes gh-23188
Prior to this commit, the resolveBean() method in ControllerAdviceBean
looked up the @ControllerAdvice bean instance in the ApplicationContext
by name for every web request that involved lookups for global methods
annotated with @ExceptionHandler, @InitBinder, and @ModelAttribute.
This commit avoids the need for such repeated lookups in the
ApplicationContext by caching the resolved @ControllerAdvice bean
instance within ControllerAdviceBean once it has been resolved.
This commit introduces unit tests for the status quo in
ControllerAdviceBeanTests to serve as regression tests for future
changes to ControllerAdviceBean.
Prior to this commit, `PathPattern::extractPathWithinMapping`
would always use the default path pattern separator `/` when extracting
the path within the pattern of a matched route.
This commit ensures that `PathPattern` uses the configured separator
when extracting the path within the matched mapping.
Fixes gh-23168
Prior to this commit, the `PathPatternRouteMatcher` would always use the
default path pattern separator when parsing incoming route strings to
`RouteMatcher.Route` instances.
When the `PathPatternRouteMatcher` is configured with a
`PathPatternParser` that has a custom separator (e.g., `.`), then the
matching algorithm can't match routes against parsed patterns.
This commit ensures that the route matcher uses the configured separator
at all times.
Fixes gh-23167
Prior to this commit, RestTemplate and HttpMessageConverterExtractor did
not validate that the supplied HttpMessageConverter list contained no
null elements, which can lead to a NullPointerException when the
converters are accessed.
This commit improves the user experience by failing immediately if the
supplied HttpMessageConverter list contains a null element. This applies
to constructors for RestTemplate and HttpMessageConverterExtractor as
well as to RestTemplate#setMessageConverters().
Note, however, that RestTemplate#getMessageConverters() returns a mutable
list. Thus, if a user modifies that list so that it contains null values,
that will still lead to a NullPointerException when the converters are
accessed.
This commit also introduces noNullElements() variants for collections in
org.springframework.util.Assert.
Closes gh-23151
This commit makes sure that in DefaultMultipartMessageReader's
DefaultFilePart, the file is not closed before all bytes are written,
by using DataBufferUtils.write (see c1b6885191d6a50347aeaa14da994f0db88f26fe).
The commit also improves on the logging of the
DefaultMultipartMessageReader.
Closes gh-23130
