RFR: 8213120: java/awt/TextArea/AutoScrollOnSelectAndAppend/AutoScrollOnSelectAndAppend.java fails on mac10.13 [v2]

[Jayathirth D V]

> Looks like this test was failing in one local system in JDK12 and it was problemlisted.
> I ran this test multiple times in our CI systems it doesnt fail.
> Made modifications to move test window to the middle of the screen and added autodelay for robot. Tested in our CI systems with modifications and test run is green.

Jayathirth D V has updated the pull request incrementally with one additional commit since the last revision:

  Use BUTTON1_DOWN_MASK

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6116/files
  - new: https://git.openjdk.java.net/jdk/pull/6116/files/c8483bcd..83ffd591

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6116&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6116&range=00-01

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6116.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6116/head:pull/6116

PR: https://git.openjdk.java.net/jdk/pull/6116