[jdk17] RFR: 8268776: Test `ADatagramSocket.java` missing /othervm from @run tag

[Daniel Fuchs]

On Wed, 16 Jun 2021 10:42:56 GMT, Patrick Concannon <pconcannon at openjdk.org> wrote:

> Hi,
> 
> Could someone please review my change to the test `test/jdk/java/net/DatagramSocket/SetDatagramSocketImplFactory/ADatagramSocket.java`? The test is missing `/othervm` from its @run jtreg test tag, which risks polluting other tests that run in that VM.
> 
> Currently, any test that runs without `/othervm` after this test would find the `DatagramSocketImpl` factory created by this test, and therefore any call made to new `DatagramSocket()` would return/use a `NetMulticastSocket` instead of `DatagramSocketAdaptor`. This could make tests that create `DatagramSocket`/`MulticastSocket` fail intermittently in unexplainable ways. Adding in `/othervm` to the @run tag will avoid this problem.
> 
> Kind regards,
> Patrick

Marked as reviewed by dfuchs (Reviewer).

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PR: https://git.openjdk.java.net/jdk17/pull/75