[macosx] Test java/awt/Frame/DisposeParentGC/DisposeParentGC.java fails for Mac only

Test name(s):java/awt/Frame/DisposeParentGC/DisposeParentGC.java
JDK tested: 9b62,9b61
OS tested: Mac 10.10 , Mac10.9 ,Linux
Is it a regression? NO
Is it platform specific? Yes ( test fails in Mac and Passes on Linux)
The is failure reproduced: always
          
General description:

----------System.err:(17/1080)----------
Platform doesn't support to create a custom cursor.
Platform doesn't support to create a custom cursor.
Platform doesn't support to create a custom cursor.
java.lang.RuntimeException: Count = 1. GC didn't collect the objects after the parent is disposed!
at DisposeParentGC.doTest(DisposeParentGC.java:92)
at DisposeParentGC.main(DisposeParentGC.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:502)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:745)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Count = 1. GC didn't collect the objects after the parent is disposed!
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Count = 1. GC didn't collect the objects after the parent is disposed!