api/java_awt/Component/index.html#PaintUpdate fails randomly

JCK : JCK 6b b24
J2SE : FAIL - jdk 6u10, 6u11 not always reproducible. (rarely fails on 6u7)
Platform[s] : FAIL - found on Windows
switch/Mode : FAIL - default

Recently we noticed that api/java_awt/Component/index.html#PaintUpdate fails sometimes with the message:
paintUpdateOnFirstShowOnScreen: Failed. Update is called on heavyweight component, however that was not requested.
paintUpdateOnFirstShowOnScreen_ZeroWidthOptimization: Passed. OKAY
paintUpdateOnFirstShowOnScreen_ZeroHeightOptimization: Passed. OKAY
repaintHeavyweight_1: Passed. OKAY
repaintLightweight_1: Passed. OKAY
repaintHeavyweight_2: Passed. OKAY
repaintLightweight_2: Passed. OKAY
repaintHeavyweight_3: Passed. OKAY
repaintLightweight_3: Passed. OKAY
repaintHeavyweight_4: Passed. OKAY
repaintLightweight_4: Passed. OKAY
testPaintAll: Passed. OKAY

Rarely other testcases may fail.

Failures occures mostly on windows. Can't say is it regression or not, since older version of java was tested with JCK6a and this test was excluded in JCK6a (See CR 6602349). There is also CR 6571823 that states that this test is invalid. The only visible changes in this test between JCK6a and JCK6b is possibility to provide other timeouts and changes in error messages.

Steps to reproduce:
1. Log in to stt-15.russia (or other windows machine)
2. Install JCK6b (on stt-15.russia it is installed to Z:/Links/stt/jck_promotions/6a/fcs/alt2/binaries/JCK-runtime-6a)
3. Install JDK 6u11 b03
4. Run the script:
#!/bin/bash -v

JAVA=C:/JDK/jdk1.6.0_10/bin/java.exe
export CLASSPATH="Z:/Links/stt/jck_promotions/6a/fcs/alt2/binaries/JCK-runtime-6a/classes"

OPTS="-Djck.EDTScript.initialDelay=1000ms -Djck.EDTScript.checkDelay=200ms"

TEST=javasoft.sqe.tests.api.java.awt.Component.PaintUpdateTests

$JAVA -version
$JAVA $TEST