IBM JRE 1.5: Uncaught exception in compiler

Question

I installed trial version of Flex Builder 2 Eclipse plug-in.
If I run eclipse with the shortcut created by Flex Builder
installation, everything works fine (it uses the Sun JRE 1.4.2
included with the installation). If I modify the shortcut to run
eclipse with the IBM JRE 1.5 (according to Flex 2.0.1 system
requirements, such configuration is supported) and create new Flex
project, the following error appears during the first build:
Error
Mon May 28 13:53:00 IDT 2007
Uncaught exception in compiler
java.lang.IllegalAccessError:
org.apache.xerces.util.XMLAttributesImpl$Attribute
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:222)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.j ava:160)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:49 8)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java: 468)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager. java:427)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java :410)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoade r.java:188)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:33 9)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:391)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:352)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.jav a:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:561)
at java.lang.J9VMInternals.verifyImpl(Native Method)
at java.lang.J9VMInternals.verify(J9VMInternals.java:59)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:120)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerMMImpl.<init>(XMLDocumentFragmentScanner MMImpl.java:105)
at
org.apache.xerces.impl.XMLDocumentScannerMMImpl.<init>(XMLDocumentScannerMMImpl.java:258)
at
org.apache.xerces.impl.XMLNSDocumentScannerMMImpl.<init>(XMLNSDocumentScannerMMImpl.java: 120)
at
org.apache.xerces.parsers.IntegratedParserConfigurationMMImpl.createDocumentScanner(Integ ratedParserConfigurationMMImpl.java:282)
at
org.apache.xerces.parsers.DTDConfiguration.<init>(Unknown
Source)
at
org.apache.xerces.parsers.StandardParserConfiguration.<init>(Unknown
Source)
at
org.apache.xerces.parsers.IntegratedParserConfigurationMMImpl.<init>(IntegratedParserConf igurationMMImpl.java:193)
at
org.apache.xerces.parsers.XML11ConfigurationMMImpl.<init>(XML11ConfigurationMMImpl.java:1 82)
at
org.apache.xerces.parsers.XML11ConfigurationMMImpl.<init>(XML11ConfigurationMMImpl.java:1 39)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1263)
at org.apache.xerces.util.ObjectFactory.newInstance(Unknown
Source)
at
org.apache.xerces.util.ObjectFactory.findJarServiceProvider(Unknown
Source)
at org.apache.xerces.util.ObjectFactory.createObject(Unknown
Source)
at org.apache.xerces.util.ObjectFactory.createObject(Unknown
Source)
at
org.apache.xerces.parsers.SAXParserMMImpl.<init>(SAXParserMMImpl.java:155)
at
org.apache.xerces.parsers.SAXParserMMImpl.<init>(SAXParserMMImpl.java:138)
at
org.apache.xerces.jaxp.SAXParserMMImpl.<init>(SAXParserMMImpl.java:109)
at
org.apache.xerces.jaxp.SAXParserFactoryMMImpl.newSAXParser(SAXParserFactoryMMImpl.java:10 2)
at
flex2.compiler.config.FileConfigurator.load(FileConfigurator.java:60)
at
flex2.tools.Compiler.processConfiguration(Compiler.java:465)
at
flex2.tools.oem.internal.OEMUtil.getApplicationConfiguration(OEMUtil.java:208)
at
flex2.tools.oem.internal.OEMUtil.getApplicationConfiguration(OEMUtil.java:180)
at
flex2.tools.oem.Application.recompile(Application.java:662)
at flex2.tools.oem.Application.compile(Application.java:530)
at
flex2.tools.flexbuilder.BuilderApplication.compile(BuilderApplication.java:224)
at
com.adobe.flexbuilder.project.compiler.internal.ASApplicationBuilder$MyBuilder.mybuild(Un known
Source)
at
com.adobe.flexbuilder.project.compiler.internal.ASApplicationBuilder.build(Unknown
Source)
at
com.adobe.flexbuilder.project.compiler.internal.ASBuilder.build(Unknown
Source)
at
com.adobe.flexbuilder.project.compiler.internal.FlexIncrementalBuilder.buildApplication(U nknown
Source)
at
com.adobe.flexbuilder.project.compiler.internal.FlexIncrementalBuilder.build(Unknown
Source)
at
org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:603)
at
org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at
org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:167)
at
org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
at
org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:230)
at
org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at
org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:233)
at
org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:252)
at
org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:285)
at
org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:145)
at
org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:208)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)

Answer 1

I found the problem! Seems to be due to the fact that I'm using a package called "data", which caused a conflict while trying to access "this.data" in an item renderer.
Explicitely casting "this.data" solved the problem!
If someone would like to try to reproduce this error, old code:
<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
autoDrawBackground="false" xmlns:components="visual.components.*">
<components:ContactElement ContactID="{this.data.ContactID}"
Sender="{this.data.Sender}"
Target="{this.data.Target}"
Accepted="{this.data.Accepted}"
Player="{this.data.Player}"/>
</s:ItemRenderer>
New code:
<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
autoDrawBackground="false" xmlns:components="visual.components.*">
<fx:Script>
<![CDATA[
import data.ContactItem;
]]>
</fx:Script>
<components:ContactElement ContactID="{ContactItem(this.data).ContactID}"
Sender="{ContactItem(this.data).Sender}"
Target="{ContactItem(this.data).Target}"
Accepted="{ContactItem(this.data).Accepted}"
Player="{ContactItem(this.data).Player}"/>
</s:ItemRenderer>
Thanks again for the help. I panicked quite a lot when I discovered that ugly error!