demo/jfc/J2Ddemo/J2DdemoTest.java fails because it doesnt find J2Ddemo.jar file from normal builds. I have seen failures in Win 7 & 10 but it should be generic issue.

Only if extract test_demos part of JDK or have local built jdk using make images it will have demo folder and it will run.

Have to analyze whether we need to add any @requires tag in jtreg or should not run when test doesnt find demo.jar

Failure :

Error: Unable to access jarfile d:\\Softwares\\Dev\\JDK12\\client-nightly\\jdk-12\\demo/jfc/J2Ddemo/J2Ddemo.jar
Exit code is 1
<beginning of Error Stream buffer>
Error: Unable to access jarfile d:\\Softwares\\Dev\\JDK12\\client-nightly\\jdk-12\\demo/jfc/J2Ddemo/J2Ddemo.jar

<end of buffer>
<beginning of Input Stream buffer>

<end of buffer>
----------System.err:(14/969)----------
java.lang.RuntimeException: Test failed - exit return code non-zero (exitStatus==1)
at J2DdemoTest$DemoRun.runit(J2DdemoTest.java:187)
at J2DdemoTest.main(J2DdemoTest.java:43)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:835)