The test\java\awt\Mixing\setComponentZOrder.java fails on Linux Ubuntu with the following test output. Works fine on Windows2000.

#Test Results (version 2)
#Mon Oct 22 17:28:35 MSD 2007
#checksum:70d8d37838e1945a
#-----testdescription-----
$file=/.automount/jse-st01/root/export3/awt/users/ad153231/dolphin_b19_n2/test/java/awt/Mixing/setComponentZOrder.java
$root=/.automount/jse-st01/root/export3/awt/users/ad153231/dolphin_b19_n2/test
author=antohny.petrov@...: area=awt.mixing
keywords=bug6589530
run=USER_SPECIFIED main setComponentZOrder\n
source=setComponentZOrder.java
title=Mixing code should correctly handle insertion of components with setComponentZOrder.

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

#-----testresult-----
description=file:///.automount/jse-st01/root/export3/awt/users/ad153231/dolphin_b19_n2/test/java/awt/Mixing/setComponentZOrder.java
end=Mon Oct 22 17:28:35 MSD 2007
environment=regtest
execStatus=Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
javatestOS=Linux 2.4.21-4.ELsmp (i386)
javatestVersion=2.1.5
script=com.sun.javatest.regtest.RegressionScript 
sections=script_messages build compile main
start=Mon Oct 22 17:28:33 MSD 2007
status=Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
test=java/awt/Mixing/setComponentZOrder.java
work=/.automount/jse-st01/root/export3/awt/users/ad153231/dolphin_b19_n2/test/java/awt/Mixing/JTwork/java/awt/Mixing

#section:script_messages
----------messages:(4/213)----------
JDK under test: (/net/archer/export5/re/jdk/7.0/latest/binaries/linux-i586)
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b19)
Java HotSpot(TM) Server VM (build 1.7.0-ea-b19, mixed mode)

#section:build
----------messages:(3/104)----------
command: build setComponentZOrder 
reason: Named class compiled on demand
elapsed time (seconds): 0.922
result: Passed. Compilation successful

#section:compile
----------messages:(3/210)----------
command: compile /.automount/jse-st01/root/export3/awt/users/ad153231/dolphin_b19_n2/test/java/awt/Mixing/setComponentZOrder.java 
reason: .class file out of date or does not exist
elapsed time (seconds): 0.92
----------System.out:(0/0)----------
----------System.err:(0/0)----------
result: Passed. Compilation successful

#section:main
----------messages:(3/122)----------
command: main setComponentZOrder
reason: User specified action: run main setComponentZOrder 
elapsed time (seconds): 1.26
----------System.out:(6/546)----------
Any messages for the tester will display here.
Any messages for the tester will display here.
The test failed: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
The test failed: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
The test is over, hit  Ctl-C to stop Java VM
The test is over, hit  Ctl-C to stop Java VM
----------System.err:(27/2034)----------
java.lang.ArrayIndexOutOfBoundsException: No such child: -1
	at java.awt.Container.getComponent(Container.java:307)
	at java.awt.Component.mixOnZOrderChanging(Component.java:9701)
	at java.awt.Container.setComponentZOrder(Container.java:713)
	at setComponentZOrder.init(setComponentZOrder.java:64)
	at setComponentZOrder.main(setComponentZOrder.java:105)
	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:623)
	at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
	at java.lang.Thread.run(Thread.java:659)
java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
	at setComponentZOrder.fail(setComponentZOrder.java:179)
	at setComponentZOrder.init(setComponentZOrder.java:67)
	at setComponentZOrder.main(setComponentZOrder.java:105)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:623)
	at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
	at java.lang.Thread.run(Thread.java:659)

JavaTest Message: Test threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1
result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1


test result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: The setComponentZOrder method used to insert a component caused the mixing code to throw the exception: java.lang.ArrayIndexOutOfBoundsException: No such child: -1