Request for Review: 7094995: test/java/util/zip/ZipFile/ClearStaleZipFileInputStreams.java causes continuous GC in agentvm mode

[Neil Richards]

Hi all,

I've created a webrev [1] to address the problem reported in bug
7094995, where the ClearStaleZipFileInputStreams testcase leaves a
lingering GC inducing thread running after the test ends (when run in
agentvm mode), as spotted by Alan and mentioned in another conversation
[2].

It modifies the testcase so the main thread tells the GcInducingThread
to shut down, and waits for it to do so (using Thread.join()) before
exiting.

I've also converted the testcase's use of ZipFile, ZipOutputStream &
FileOutputStream to use ARM (for greater clarity).

Please let me know your thoughts on this change,

Thanks, Neil

[1] http://cr.openjdk.java.net/~ngmr/7094995/webrev.00/
[2] http://mail.openjdk.java.net/pipermail/core-libs-dev/2011-November/008251.html

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