8306943: Open source several dnd AWT tests

[azvegint]

Open sourcing few more tests:

java/awt/dnd/DnDAWTLockTest/DnDAWTLockTest.java
java/awt/dnd/DragGestureInvokeLaterTest/DragGestureInvokeLaterTest.java
java/awt/dnd/DragOverDropTargetPerformanceTest/DragOverDropTargetPerformanceTest.java
java/awt/dnd/DragSourceDragEventModifiersTest/DragSourceDragEventModifiersTest.java
java/awt/dnd/DragSourceGCrashTest/DragSourceGCrashTest.java

Testing looks good.

---

Progress

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Issue

• JDK-8306943: Open source several dnd AWT tests

Reviewers

• Phil Race (@prrace - Reviewer)
• Sergey Bylokhov (@mrserb - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/13752/head:pull/13752
$ git checkout pull/13752

Update a local copy of the PR:
$ git checkout pull/13752
$ git pull https://git.openjdk.org/jdk.git pull/13752/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 13752

View PR using the GUI difftool:
$ git pr show -t 13752

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/13752.diff

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[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 01: Full - Incremental (ec43740f)
• 00: Full (b0cdf45f)

[mrserb]

do we need to add a sync for process and sourcePoint?

[azvegint]

I don't think so.

lostOwnership is called when some other client changes the contents of the clipboard.
It can be either our Child process or other programs in the system.
In first case process and sourcePoint are not null by this time.
In the second case, it will also mean a test failure because the test expects a very certain clipboard content.

I made them volatile just in case, since they are accessed from several threads.

[openjdk]

@azvegint This change now passes all automated pre-integration checks.

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After integration, the commit message for the final commit will be:

8306943: Open source several dnd AWT tests

Reviewed-by: prr, serb

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 32 new commits pushed to the master branch:

• 465bdd9: 8307091: A few client tests intermittently throw ConcurrentModificationException
• caee1be: 8307305: Update debugger tests to support JTREG_TEST_THREAD_FACTORY mode
• 3599448: 8307147: [x86] Dangling pointer warning for Assembler::_attributes
• 64ac9a0: 8306946: jdk/test/lib/process/ProcessToolsStartProcessTest.java fails with "wrong number of lines in OutputAnalyzer output"
• 03030d4: 8307134: Add GTS root CAs
• 63cd0a3: 4200096: OffScreenImageSource.removeConsumer NullPointerException
• db8b3cd: 8305963: Typo in java.security.Security.getProperty
• dcb2f3f: 8306320: BufferedImage spec needs clarification w.r.t its implementation of the WritableRenderedImage interface
• 1487477: 8305815: Update Libpng to 1.6.39
• 705ad7d: 8306014: Update javax.net.ssl TLS tests to use SSLContextTemplate or SSLEngineTemplate
• ... and 22 more: https://git.openjdk.org/jdk/compare/1532a1b0bd72f37b77540af51368271ef80e17d2...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[azvegint]

/integrate

[openjdk]

Going to push as commit 2adb3b4.
Since your change was applied there have been 39 commits pushed to the master branch:

• dc4096c: 8304937: BufferedFieldBuilder.Model missing writeTo(DirectClassBuilder)
• 29233e0: 8307448: Test RedefineSharedClassJFR fail due to wrong assumption
• 408cec5: 8306929: Avoid CleanClassLoaderDataMetaspaces safepoints when previous versions are shared
• cecf817: 8307181: MemoryLayout.structLayout uses undocumented strict alignment constraints
• 3f1927a: 8307346: Add missing gc+phases logging for ObjectCount(AfterGC) JFR event collection code
• e206d57: 8307362: Remove test com/sun/jdi/JdbLastErrorTest.java
• 82a8e91: 8306489: Open source AWT List related tests
• 465bdd9: 8307091: A few client tests intermittently throw ConcurrentModificationException
• caee1be: 8307305: Update debugger tests to support JTREG_TEST_THREAD_FACTORY mode
• 3599448: 8307147: [x86] Dangling pointer warning for Assembler::_attributes
• ... and 29 more: https://git.openjdk.org/jdk/compare/1532a1b0bd72f37b77540af51368271ef80e17d2...master

Your commit was automatically rebased without conflicts.

[openjdk]

@azvegint Pushed as commit 2adb3b4.

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