This pr makes sure to call System.gc() before each test in UnmountedVThreadNativeMethodAtTop.java
The intention is to get rid of unreachable objects representing loaded heap dumps from previous tests. This prevents OutOfMemoryErrors. Parsing the smaller dumps is faster too. The PR also includes a reproducer for convenient testing of the pr. ------------- Commit messages: - Revert "Reproduce OOM with duplicate test case" - Fix issue: System.gc() before each test - Reproduce OOM with duplicate test case Changes: https://git.openjdk.org/jdk/pull/26278/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26278&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8361827 Stats: 10 lines in 1 file changed: 10 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/26278.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/26278/head:pull/26278 PR: https://git.openjdk.org/jdk/pull/26278
