[TEST_BUG] com/sun/awt/SecurityWarning/GetSizeShouldNotReturnZero.java failed since jdk8b108

test com/sun/awt/SecurityWarning/GetSizeShouldNotReturnZero.java failed since jdk8b108, reproduced on MacOS and Windows; it passed with jdk8b107 and jdk7u40b43

log:
----------System.out:(2/94)----------
Any messages for the tester will display here.
Any messages for the tester will display here.
----------System.err:(15/987)----------
java.lang.IllegalArgumentException: The window must have a non-null warning string.
at com.sun.awt.SecurityWarning.getSize(SecurityWarning.java:76)
at GetSizeShouldNotReturnZero.init(GetSizeShouldNotReturnZero.java:81)
at GetSizeShouldNotReturnZero.main(GetSizeShouldNotReturnZero.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:724)