[8u] RFR: 8252470: java/awt/dnd/DisposeFrameOnDragCrash/DisposeFrameOnDragTest.java fails on Windows

[Alex Kashchenko]

Hi,

Please review the backport of JDK-8252470 to 8u-dev:

Bug: https://bugs.openjdk.java.net/browse/JDK-8252470

Original changeset: https://hg.openjdk.java.net/jdk/jdk/rev/5870df313be1

8u webrev: https://cr.openjdk.java.net/~akasko/jdk8u/8252470/webrev.00/


Backport depends on:

8132664: 
closed/javax/swing/DataTransfer/DefaultNoDrop/DefaultNoDrop.java locks 
on Windows (not public, see: 
https://mail.openjdk.java.net/pipermail/jdk8u-dev/2020-September/012731.html 
)
8232114: JVM crashed at imjpapi.dll in native code


After fixing paths, changes to awt_Toolkit.cpp apply cleanly. 
Comment-only change to DisposeFrameOnDragTest.java does not apply 
cleanly, because it depends on:

8198333: ProblemList should be updated for headless mode

that seems to be problematic to backport. It is proposed to exclude 
changes to DisposeFrameOnDragTest.java from the backport.

Testing: checked that it compiles with vs2010 and vs2017, ran 
jck:api/java_awt .


PS: it is not clear whether this fix need to be brought to 15/13/11 
first before proceeding with 8, please let me know if that is the case.

-- 
-Alex