regression test java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.html fails

Java Version: build 1.6.0-rc-b87
Platform: solaris-sparc10

Problems:
The regression test fails in recent builds.
The exceptions as following:
java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
at WheelEventsConsumed.start(WheelEventsConsumed.java:64)
at com.sun.javatest.regtest.AppletWrapper$AppletThread.run(AppletWrapper.java:134)
at java.lang.Thread.run(Thread.java:619)
STATUS:Failed.Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
result: Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1


test result: Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1

How to reproduce:
1. set JAVA_HOME to mustang b87
2. sh runsolaris.sh
   which is attached.
JAVA_HOME="JAVA_HOME"

/net/cady.sfbay/export/dtf/unified/knight-ws/suites/regression/jct-tools/2.1.6/archive/fcs/binaries/solaris/bin/jtreg \
-cpa:/net/cady.sfbay/export/dtf/unified/knight-ws/suites/regression/sail16/Jemmy/jemmy.jar \
-r:./2d-reportDir \
-w:./2d-workDir \
/java/re/jdk/1.6.0/promoted/rc/b87/ws/j2se/test/java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.html


jtr file is also attached.
#Test Results (version 2)
#Tue Jun 13 16:17:59 PDT 2006
#checksum:61a876da8e67cf37
#-----testdescription-----
$file=/net/jre.sfbay/p/v06/jdk/6.0/rc/b87/ws/j2se/test/java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.html
$root=/net/jre.sfbay/p/v06/jdk/6.0/rc/b87/ws/j2se/test
author=andrei.dmitriev : area=awt.choice
keywords=bug6253211
run=USER_SPECIFIED applet WheelEventsConsumed.html\n
source=WheelEventsConsumed.html
title=PIT: MouseWheel events not triggered for Choice drop down in XAWT

#-----environment-----

#-----testresult-----
description=file:///net/jre.sfbay/p/v06/jdk/6.0/rc/b87/ws/j2se/test/java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.html
end=Tue Jun 13 16:17:59 PDT 2006
environment=regtest
execStatus=Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
javatestOS=SunOS 5.10 (sparc)
javatestVersion=2.1.6
script=com.sun.javatest.regtest.RegressionScript
sections=script_messages build compile applet
start=Tue Jun 13 16:17:43 PDT 2006
status=Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
test=java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.html
work=/net/cady/export4/2d-workDir/java/awt/Choice/WheelEventsConsumed

#section:script_messages
----------messages:(4/213)----------
JDK under test: (/java/re/jdk/1.6.0/promoted/rc/b87/binaries/solaris-sparc)
java version "1.6.0-rc"
Java(TM) SE Runtime Environment (build 1.6.0-rc-b87)
Java HotSpot(TM) Client VM (build 1.6.0-rc-b87, mixed mode)

#section:build
----------messages:(3/105)----------
command: build WheelEventsConsumed
reason: Named class compiled on demand
elapsed time (seconds): 9.183
result: Passed. Compilation successful

#section:compile
----------messages:(3/208)----------
command: compile /net/jre.sfbay/p/v06/jdk/6.0/rc/b87/ws/j2se/test/java/awt/Choice/WheelEventsConsumed/WheelEventsConsumed.java
reason: .class file out of date or does not exist
elapsed time (seconds): 9.176
----------System.out:(0/0)----------
----------System.err:(0/0)----------
result: Passed. Compilation successful

#section:applet
----------messages:(3/139)----------
command: applet WheelEventsConsumed.html
reason: User specified action: run applet WheelEventsConsumed.html
elapsed time (seconds): 5.246
----------System.out:(0/0)----------
----------System.err:(5/518)----------
java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
at WheelEventsConsumed.start(WheelEventsConsumed.java:64)
at com.sun.javatest.regtest.AppletWrapper$AppletThread.run(AppletWrapper.java:134)
at java.lang.Thread.run(Thread.java:619)
STATUS:Failed.Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1
result: Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1


test result: Failed. Execution failed: Applet thread threw exception: java.lang.RuntimeException: Test failed. Exception thrown: java.lang.RuntimeException: Test failed. Choice should generate MOUSE_WHEEL events.1