8183536: Update jdk tests to allow for unique test classes directory

[Lance Andersen]

The changes seem fine Alan

Best
Lance
> On Jul 5, 2017, at 3:44 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> jtreg has been updated via CODETOOLS-7902003 [1] to use a unique test.classes directory. This is part of improving the reliability when running tests concurrently. The change exposes issues in a tiny number of tests that use test.classes in odd ways. For the jdk repo then two tests need to be updated. There are a few others in the hotspot [2] and langtools [3] repos that also need to be fixed before the jtreg requiredVersion can be bumped to use a promoted jtreg with the change.
> 
> While in the area, I also changed a number of recent tests to not use the temporary file system. Tim Bell has created a lot of bugs on this recently, I think because he observed /tmp filling up.
> 
> The (trivial) patch with the updates to the tests is here:
>  http://cr.openjdk.java.net/~alanb/8183536/webrev/index.html
> 
> I'd like to get this into jdk10/jdk10 to meet up with the test updates in the other repos.
> 
> -Alan.
> 
> [1] https://bugs.openjdk.java.net/browse/CODETOOLS-7902003
> [2] http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2017-July/023841.html
> [3] http://mail.openjdk.java.net/pipermail/compiler-dev/2017-July/011012.html

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 <http://oracle.com/us/design/oracle-email-sig-198324.gif>Lance Andersen| Principal Member of Technical Staff | +1.781.442.2037
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