Fix another instance where a LinkedHashMap was initialized with an initial
capacity that would always cause a resize / rehash to occur. Switch to
CollectionUtils.newLinkedHashMap to size the map appropiately for the expected
number of items.
Closes gh-32215
Prior to this commit, the `RequestPredicates` would add new attributes
to the existing request attributes by creating a new `LinkedHashMap`
with the total number of elements as its new initial capacity.
This would not achieve optimal performance as initial resize or rehash
operations could be expected. Consistently using
`CollectionUtils#newLinkedHashMap` avoids this problem.
Closes gh-32201
ServletAttributesMap inherited default implementations of the size
and isEmpty methods from AbstractMap which delegates to the Set returned
by entrySet. ServletAttributesMap's entrySet method made this fairly
expensive, since it would copy the attributes to a List, then use a
Stream to build the Set. To avoid the cost, add implementations of
isEmpty / size that don't need to call entrySet at all.
Additionally, change entrySet to return a Set view that simply lazily
delegates to the underlying servlet request for iteration.
Closes gh-32189
This commit ensures that, when creating a RestClient.Builder from a
RestTemplate, the UriBuilderFactory is only copied if it has been
changed from the default values.
Before this commit, the UriBuilderFactory was effectively alway copied,
resulting in not being able to use a baseUrl.
This commit also introduces a small memory optimization in
DefaultUriBuilderFactory, so that default environment variables are
created lazily.
Closes gh-32180
This commit replaces occurrences of modelAttribitePredicate with modelAttributePredicate
in HandlerMethodValidationException and the associated validator.
Closes gh-32183