Prior to this commit, the `ConcurrentLruCache` implementation would use
arrays of `AtomicReference` as operation buffers, and the buffer count
would be calculated with the nearest power of two for the CPU count.
This can result in significant heap memory usage as each
`AtomicReference` buffer entry adds to the memory pressure. As seen in
FasterXML/jackson-databind#3665, this can add a significant overhead for
no real added benefit for the current use case.
This commit changes the current implementation to use
`AtomicReferenceArray` as buffers and reduce the number of buffers.
JMH benchmarks results are within the error margin so we can assume that
this does not change the performance characteristics for the typical use
case in Spring Framework.
Fixes gh-29520
This commit deprecates the `"application/graphql+json"` media type in
favor of the new `"application/graphql-response+json"`, since the former
has been removed in graphql/graphql-over-http#215.
Closes gh-29617
This ensures that by default the reason is used to set the "detail"
field. It's a follow-up fix to a27f2e994b
which resolved the issue partially.
Closes gh-29608
In order to automate maintenance of copyright headers in our source
code (especially when merging PRs from external contributors), this
commit introduces an update_copyright_headers.sh script (tested on
mac OS) that will update the copyright headers of all Java, Kotlin,
and Groovy source files that have been added or modified this year
(or at least as far back as the git log history supports it).
For example, running this script currently outputs the following.
Updating copyright headers in Java, Kotlin, and Groovy source code for year 2022
warning: log for 'main' only goes back to Tue, 16 Aug 2022 16:24:55 +0200
Sam Brannen
divcon
rstoyanchev
Moritz Halbritter
Sam Brannen
CoderYellow
Marten Deinum
Brian Clozel
Spark61
Juergen Hoeller
Baljit Singh
Johnny Lim