[macosx] After clicking on the scrollbar,the case is crashed

Testsuite name:AWT function
Test name(s):AWT_Menu/Manual/PopupMenuTest
Product(s) tested:JDK8u60b27(64bit)
OS/architecture:mac10.11-x64

Error log file (if present): http://aurora.ru.oracle.com/slot-gw/1106355.ManualSubmit-1/ResultDir/PopupMenuTest/PopupMenuTest.log
Crash file:http://aurora.ru.oracle.com/slot-gw/1106355.ManualSubmit-1/ResultDir/PopupMenuTest/hs_err_pid1119.log

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

Is it a Regression:YES(The same build on mac10.10-x64:Passed)
[If Regression] Regression introduced in release/build:
Test result on the last GAed release for this train:
[if Fail] Test result on FCS:

Is it a platform specific issue:YES(The same build on win7-sp1-x86:Passed;
                                                  The same build on oel6.4-uek-x86:Passed;
                                                  The same build on solaris11.2-x64:Passed;
                                                  The same build on solaris10-sparc:Passed)
[If platform specific issue] Is it a new (previously unsupported) OS/browser/mode testing:YES
[If new configuration testing] Issue specific to execution mode or OS/browser version:Mac10.11-x64


Steps to reproduce:
1.Install stable jdk8u51b16(64bit)(download from http://jre.us.oracle.com/java/re/jdk/8u51/promoted/fcs/b16/bundles/macosx-x86_64/jdk-8u51-macosx-x86_64.dmg) locate at /Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk
 2.Install base jdk8u60b26(64bit)(download from http://jre.us.oracle.com/java/re/jdk/8u60/promoted/fcs/b26/bundles/macosx-x86_64/jdk-8u60-macosx-x86_64.dmg) locate at /Library/Java/JavaVirtualMachines/jdk1.8.0_60_b26.jdk
 3.Install test jdk8u60b27(64bit)(download from http://jre.us.oracle.com/java/re/jdk/8u60/promoted/fcs/b27/bundles/macosx-x86_64/jdk-8u60-macosx-x86_64.dmg) locate at /Library/Java/JavaVirtualMachines/jdk1.8.0_60_b27.jdk
4.Clone the awt functional workspace
  4a.hg clone http://sqe-hg.us.oracle.com/hg/index.cgi/testbase/javase/functional/8 /Users/egtc/awt
  4b.cd 8
  4c.hg clone http://sqe-hg.us.oracle.com/hg/index.cgi/testbase/javase/functional/8/awt /Users/egtc/awt
5.Install ute from attachment to /Users/egtc/awt
6.Add attachment testlist.fail to /Users/egtc/awt
7.Create results at /Users/egtc/awt
8.Modify the test_awt.sh as:
/Users/egtc/awt/ute/ute run -harness tonga -env TONGA_MAIN_CLASS=Tonga -env KEYWORDS=manual -env BASEBUILD="/Library/Java/JavaVirtualMachines/jdk1.8.0_60_b26.jdk/Contents/Home" -env STABLE_JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home" -component awt -jdk "/Library/Java/JavaVirtualMachines/jdk1.8.0_60_b27.jdk/Contents/Home" -testbase /Users/egtc/awt/8/awt/ -testlist /Users/egtc/awt/testlist.fail -results /Users/egtc/awt/results
9. Go to /Users/egtc/awt and run the command : bash test_awt.sh
 
Case Instruction:
Step1:
Note : Incase of Assertion failure user can enter any remarks by
pressing 'Assertion Fail Remarks'.
The Menu Test frame shows a MenuBar which has a PopupMenu added.
Check if it appears correctly. Click on the PopupMenu menu button and check if the menu drops down.If any of these does not
appear, assertion failed

Step2:
Note : Incase of Assertion failure user can enter any remarks by
pressing 'Assertion Fail Remarks'.
Click on the PopupMenu menu button and traverse the dropped down
menu keyboard. If it does not work correctly, assertion failed

Step3:
Note : Incase of Assertion failure user can enter any remarks by
pressing 'Assertion Fail Remarks'.
Right click on each of the components (except the control
button) displayed on the frame. Check if PopupMenus are
displayed on each of the components. When right clicked on a
choice, only the PopupMenu should be displayed and the drop down
should not appear. If any of these fail, press assertion fail
and enter remarks
 
Actual behavior:
At Step3:Clicking on the scrollbar,the case is crashed,please to check the crash log.