RFR: 8295707: Create a regression test for JDK-7184401

[Srinivas Mandalika]

On Wed, 2 Nov 2022 14:05:36 GMT, lawrence.andrews <duke at openjdk.org> wrote:

>> 8295707: Create a regression test for JDK-7184401
>> 
>> JDK-7184401 - JDk7u6 : Missing main menu bar in Netbeans after fix for 7162144
>> Above bug got introduced due to a fix for [JDK-7162144](https://bugs.openjdk.java.net/browse/JDK-7162144). 
>> The issue was observed on the netbeans UI. 
>> The test below recreates a standalone test to mimic the failure reported in Netbeans in [JDK-7184401](https://bugs.openjdk.java.net/browse/JDK-7184401) and verifies that it is working as expected after it got fixed via [JDK-7189350](https://bugs.openjdk.java.net/browse/JDK-7189350))
>> 
>> The Test attempts to reproduce specific behavior of NetBeans at the certain toolbar creation stage. Widgets are created on EDT; Another code posts some events to them on EDT; From another thread some code calls explicitly edt.interrupt().
>> Before this got fixed, events from a second code got lost.
>> 
>> This review is for migrating tests from a closed test suite to open.
>> Testing:
>> 1.Tested the code on jdk7u6 to reproduce the issue - the UI hangs when run on this build.
>> 2. Tested the code on jdk7u361 b01 to validate the fix - the test passed.
>> 3.Mach5 Testing(40 times per platform) in macos x64, linux x64 and windows x64 - the .results are clean
>
> test/jdk/java/awt/EventDispatchThread/InterruptEDTTest.java line 86:
> 
>> 84:         ((sun.awt.SunToolkit) (Toolkit.getDefaultToolkit())).realSync();
>> 85:         try {
>> 86:             EventQueue.invokeAndWait(() -> {
> 
> This is duplicate code in Line# 67 to Line# 72.

The intent was to ensure latest values are picked up, thereby ensuring the stability of the code.  But I see the point that it does add value since there is not change in the frame position. Will remove it.

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PR: https://git.openjdk.org/jdk/pull/10784