This aligns the buffer size used in StreamUtils with the buffer sizes
used throughout the JDK (see InputStream, BufferedInputStream, Files).
Closes gh-28965
As of Java 18, the serial lint warning in javac has been expanded to
check for class fields that are not marked as `Serializable`.
See https://www.oracle.com/java/technologies/javase/18all-relnotes.html#JDK-8202056
In the Spring Framework codebase, this can happen with `Map`, `Set` or
`List` attributes which are often assigned with an unmodifiable
implementation variant. Such implementations are `Serializable` but
cannot be used as field types.
This commit ensures that the following changes are applied:
* fields are marked as transient if they can't be serialized
* classes are marked as `Serializable` if this was missing
* `@SuppressWarnings("serial")` is applied where relevant
This commit disables some ORM tests based on
`AbstractEntityManagerFactoryBeanTests` as those fail when the main
source set is built with Java 17 and tests are executed with Java 18.
`HttpStatusCode` instance only hold an int value and are held by
`Serializable` classes, so this commit enforces this.
Without this change, Java 19+ will emit a compiler warning as
`Serializable` classes use `HttpStatusCode` as a field.
This commit introduces endToEndTestsForEntireSpringTestModule() in
AotIntegrationTests to allow us to periodically check on our AOT
support.
Status quo:
- several test classes cannot be processed for AOT due to exceptions
thrown during processing
- some generated classes fail to compile
- some tests fail
See gh-29122
These tests often fail on the CI server and do not provide any
meaningful information when they fail, since only a proper benchmark
would suffice. Furthermore, the test method was introduced 10 years
ago to address deficiencies in JDK 7 which no longer exist.
See gh-14415
This commit ensures that when using `sendRedirect`, the response wrapper
behaves correctly with regards to the Servlet specification:
1. reset the response buffer to clear any partially written response
2. set the expected response HTTP headers
3. flush the buffer to commit the response
Closes gh-29050
