[jdk21u-dev] RFR: 8358077: sun.tools.attach.VirtualMachineImpl::checkCatchesAndSendQuitTo on Linux leaks file handles after JDK-8327114

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

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Depends on: https://git.openjdk.org/jdk21u-dev/pull/2560

Commit messages:
 - backport 44d62c8e21fb09381f9f86a081f70549cc321b1e

Changes: https://git.openjdk.org/jdk21u-dev/pull/2561/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2561&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358077
  Stats: 16 lines in 2 files changed: 14 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2561.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2561/head:pull/2561

PR: https://git.openjdk.org/jdk21u-dev/pull/2561