RFR: 8313739: ZipOutputStream.close() should always close the wrapped stream [v2]

[Eirik Bjørsnøs]

> Please consider this PR which makes `DeflaterOutputStream.close()` always close its wrapped output stream.
> 
> Currently, closing of the wrapped output stream happens outside the finally block where `finish()` is called. If `finish()` throws, this means the wrapped stream will not be closed. This can potentially lead to leaking resources such as file descriptors or sockets.
> 
> This fix is to move the closing of the wrapped stream inside the finally block.
> 
> Specification: This change brings the implementation of `DeflaterOutputStream.close()` in line with its specification:  *Writes remaining compressed data to the output stream and closes the underlying stream.*
> 
> Risk: This is a behavioural change. There is a small risk that existing code depends on the close method not following its specification.
> 
> Testing: The PR adds a new JUnit 5 test `CloseWrappedStream.java` which simulates the failure condition and verifies that the wrapped stream was closed under failing and non-failing conditions.

Eirik Bjørsnøs has updated the pull request incrementally with one additional commit since the last revision:

  Prevent IOException thrown during finish() from being lost if an IOException is thrown while closing the wrapped stream

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17209/files
  - new: https://git.openjdk.org/jdk/pull/17209/files/af21bda7..02707d58

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17209&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17209&range=00-01

  Stats: 12 lines in 1 file changed: 11 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17209.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17209/head:pull/17209

PR: https://git.openjdk.org/jdk/pull/17209