git: openjdk/jdk18u: master: 8277072: ObjectStreamClass caches keep ClassLoaders alive

[Roman Kennke]

Changeset: 76e25e64
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2022-03-23 19:13:19 +0000
URL:       https://git.openjdk.java.net/jdk18u/commit/76e25e64e0306841ea6a4fc3f4d74640a48e5333

8277072: ObjectStreamClass caches keep ClassLoaders alive

Reviewed-by: rriggs
Backport-of: 8eb453baebe377697286f7eb32280ca9f1fd7775

+ src/java.base/share/classes/java/io/ClassCache.java
! src/java.base/share/classes/java/io/ObjectStreamClass.java
+ test/jdk/java/io/ObjectStreamClass/ObjectStreamClassCaching.java
+ test/jdk/java/io/ObjectStreamClass/TestOSCClassLoaderLeak.java