RFR: JDK-8344368 : IndependenceSwingTest.java and IndependenceAWTTest.java failed: Selected text & clipboard contents differs [v4]

[Harshitha Onkar]

> The following two tests failed intermittently due to stability issues after JEP486 (Removal of Security Manager). Tests have been updated for stability. 
> This test is applicable for linux platform only, hence `@requires (os.family == "linux")`  jtreg tag is added and the redundant OS check within the test is removed.
> 
> - java/awt/datatransfer/Independence/IndependenceAWTTest.java
> - java/awt/datatransfer/Independence/IndependenceSwingTest.java
> 
> Multiple runs of the test on CI looks good and the tests pass.

Harshitha Onkar has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains seven additional commits since the last revision:

 - Merge branch 'master' into jep486_DataTransferTests
 - glideStartLocation changes
 - frame title
 - removed redundant null check
 - removed author tags, delay changes
 - added missing import
 - datatransfer test changes

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/22490/files
  - new: https://git.openjdk.org/jdk/pull/22490/files/795f8bd1..baaa7785

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22490&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22490&range=02-03

  Stats: 72332 lines in 814 files changed: 58290 ins; 10223 del; 3819 mod
  Patch: https://git.openjdk.org/jdk/pull/22490.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22490/head:pull/22490

PR: https://git.openjdk.org/jdk/pull/22490