RFR: 8196367: java/awt/List/SingleModeDeselect/SingleModeDeselect.java times out [v3]

[Alexander Zuev]

> Clean up imports;
> Close and dispose frame before exiting the test;

Alexander Zuev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - Merge branch 'master' into JDK-8196367
 - Use one tyr/catch instead of two
   Generic code cleanup
 - Remove test from the ProblemList
 - 8196367: java/awt/List/SingleModeDeselect/SingleModeDeselect.java times out
   
   Clean up imports;
   Close and dispose frame before exiting the test;

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Changes: https://git.openjdk.java.net/jdk/pull/8351/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8351&range=02
  Stats: 27 lines in 2 files changed: 12 ins; 9 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8351.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8351/head:pull/8351

PR: https://git.openjdk.java.net/jdk/pull/8351