RFR: 8289547 : Update javax/swing/Popup/TaskbarPositionTest.java [v3]

[Renjith Kannath Pariyangad]

> Hi Reviewers,
> Noticed this test case not verifying all the cases which is intended. Modified it for improving the coverage for 3 type of popups (menu, context menu and combobox).
> 
>  Evaluating conditions:
> 1. Not enough space for showing popup downwards(default layout), it should show upwards
> 2. Window starts from negative position, Popup should show on visible area
> 
> For achieving this following areas are modified
> - Updated isPopupOnScreen by adding Additional checks (like the position of combobox popup is always verified)
> - Menu creation made as function and reused for all menu creation.
> - Updated ComboPopupCheckListener class and modified its popupMenuWillBecomeInvisible function. Made it as generic and it is capable to evaluate any combo box's position if this class set as its listener.
> - This test case is not intended for multi monitor setup so added a check for identifying monitor, else error out.
> - Updated CTRL_MASK to CTRL_DOWN_MASK for removing depreciation warnings and removed some other warnings.
> 
> Please review this
> 
> Regards,
> Renjith.

Renjith Kannath Pariyangad has updated the pull request incrementally with one additional commit since the last revision:

  Updated test description with more meaning full message

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13578/files
  - new: https://git.openjdk.org/jdk/pull/13578/files/a46881b2..833dee4a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13578&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13578&range=01-02

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/13578.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13578/head:pull/13578

PR: https://git.openjdk.org/jdk/pull/13578