Bug#677125: netbeans: java gui editor fails due to incompatible class definitions

[Andrew Ross]

Package: netbeans
Version: 7.0.1+dfsg1-5
Severity: important


When trying to use the java swing editor of netbeans, a java exception 
occurs due to incompatible class definitions:

java.lang.LinkageError: loader constraint violation: loader (instance of 
org/netbeans/StandardModule$OneModuleClassLoader) previously initiated loading 
for a different type with name "org/w3c/dom/DocumentFragment"
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
        at org.netbeans.JarClassLoader.doLoadClass(Unknown Source)
        at org.netbeans.ProxyClassLoader.selfLoadClass(Unknown Source)
        at org.netbeans.ProxyClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
        at org.apache.xerces.parsers.AbstractDOMParser.startDocument(Unknown 
Source)
        at org.apache.xerces.impl.dtd.XMLDTDValidator.startDocument(Unknown 
Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl.startEntity(Unknown 
Source)
        at 
org.apache.xerces.impl.XMLVersionDetector.startDocumentParsing(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
        at 
org.netbeans.modules.form.GandalfPersistenceManager.canLoadForm(Unknown Source)
        at 
org.netbeans.modules.form.FormDesigner$PreLoadTask.getPersistenceManager(Unknown
 Source)
        at org.netbeans.modules.form.FormDesigner$PreLoadTask.run(Unknown 
Source)
[catch] at org.openide.util.RequestProcessor$Task.run(Unknown Source)
        at org.openide.util.RequestProcessor$Processor.run(Unknown Source)

java.lang.LinkageError: loader constraint violation in interface itable 
initialization: when resolving method 
"org.apache.xerces.dom.CoreDocumentImpl.createDocumentFragment()Lorg/w3c/dom/DocumentFragment;"
 the class loader (instance of 
org/netbeans/StandardModule$OneModuleClassLoader) of the current class, 
org/apache/xerces/dom/CoreDocumentImpl, and the class loader (instance of 
<bootloader>) for interface org/w3c/dom/Document have different Class objects 
for the type org/w3c/dom/DocumentFragment used in the signature
        at org.apache.xerces.parsers.AbstractDOMParser.startDocument(Unknown 
Source)
        at org.apache.xerces.impl.dtd.XMLDTDValidator.startDocument(Unknown 
Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl.startEntity(Unknown 
Source)
        at 
org.apache.xerces.impl.XMLVersionDetector.startDocumentParsing(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
        at 
org.netbeans.modules.form.GandalfPersistenceManager.canLoadForm(Unknown Source)
        at 
org.netbeans.modules.form.FormDesigner$PreLoadTask.getPersistenceManager(Unknown
 Source)
        at org.netbeans.modules.form.FormDesigner$PreLoadTask.run(Unknown 
Source)
[catch] at org.openide.util.RequestProcessor$Task.run(Unknown Source)
        at org.openide.util.RequestProcessor$Processor.run(Unknown Source)



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