[jdk17] RFR: 8268525: Some new memory leak after JDK-8248268 and JDK-8255557 [v2]

[Weijun Wang]

> Remove newly leaked memory.

Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:

  clean up one class

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk17/pull/3/files
  - new: https://git.openjdk.java.net/jdk17/pull/3/files/92375608..81d14efd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk17&pr=3&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk17&pr=3&range=00-01

  Stats: 71 lines in 1 file changed: 7 ins; 50 del; 14 mod
  Patch: https://git.openjdk.java.net/jdk17/pull/3.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/3/head:pull/3

PR: https://git.openjdk.java.net/jdk17/pull/3