RFR: JDK-8265078: jpackage tests on Windows leave large temp files [v3]

[Andy Herrick]

On Tue, 13 Apr 2021 22:50:12 GMT, Andy Herrick <herrick at openjdk.org> wrote:

>> two changes:
>> One to jpackage, when recursively removing directory, when IOException occurs, record it and continue (deleting as much as possible) before throwing the exception.
>> The other to tests, when running jpackage via ProcessBuilder.execute(), set the "TMP" environment variable to the current value of System Property "java.io.tmpdir".  This causes the sub-process (jpackage) to output tmp files to the tmp file location used by the test. (So the test harness can clean up after test exits).
>
> Andy Herrick has updated the pull request incrementally with one additional commit since the last revision:
> 
>   JDK-8265078: jpackage tests on Windows leave large temp files

Although jpackage failing to clean up has only been seen as an issue on Windows, allowing it to write outside the test directory (in default tmp dir) still exists on mac and linux - I will look into enhancing (what is now setWindowsTmpDir()) to be usefull on all platforms.

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PR: https://git.openjdk.java.net/jdk/pull/3473