Testsuite name: Awt Regression
Test name(s):java/awt/Button/ActionEventTest/ActionEventTest.java
Product(s) tested: JDK 9 b123 (64bit)
OS/architecture: Mac10.10 x64

Reproducible: Always
Reproducible on machine: Evergreen-machine
[If Sometimes] Also reproducible on machine:

Is it a platform specific issue:YES(the same build on win7:passed;
                                                     the same build on oel6.4:passed;
                                                     the same build on solaris:passed)
[If platform specific issue] Is it a new (previously unsupported) OS/browser/mode testing:
[If new configuration testing] Issue specific to execution mode or OS/browser version:



Case instruction:
This is a manual test Keep the Alt, Shift & Ctrl Keys pressed & Click 'ClickMe' button with left mouse button Test exits automatically after mouse click.

Actual behavior:
Keep pressed the Alt, Shift & Ctrl Keys,and then Click 'ClickMe' button,the case failed automatically and thrown the "java.lang.RuntimeException: Action Event modifiers are not set correctly" exception.