[jdk17u-dev] RFR: 8271506: Add ResourceHashtable support for deleting selected entries [v3]

[Goetz Lindenmaier]

> I backport this as prerequisite to JDK-8274944 which calls the new method unlink().
> 
> I had to adapt the code to work in jdk17 because ""JDK-8269004: Implement ResizableResourceHashtable" is missing in 17.

Goetz Lindenmaier has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Backport f15d6cbcaf191b9718ab51b1e8b72938c0abdd6b

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Changes:
  - all: https://git.openjdk.java.net/jdk17u-dev/pull/132/files
  - new: https://git.openjdk.java.net/jdk17u-dev/pull/132/files/d68ad89f..dcbda7e6

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=132&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=132&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/132.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/132/head:pull/132

PR: https://git.openjdk.java.net/jdk17u-dev/pull/132