[CLOSED] B4 GWT compiler exception

[obender]

Here is the code that causes the compiler exception:



public void onModuleLoad()
{
ContentPanel cp1 = new ContentPanel();
cp1.addListener( Events.KeyPress, new KeyEventListener() );

RootPanel.get().add( cp1 );
}

private class KeyEventListener implements Listener<KeyEvent>
{
public void handleEvent ( KeyEvent be )
{
if ( be.type == Events.KeyPress && 13 == be.getKeyCode () ) {
...
}
}
}
Exception:


Error:An internal compiler exception occurred
Error:at com.google.gwt.dev.jjs.ast.JVisitor.translateException(JVisitor.java:538)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.doTraverse(JVisitor.java:529)
Error:at com.google.gwt.dev.jjs.ast.JModVisitor$NodeContext.traverse(JModVisitor.java:154)
Error:at com.google.gwt.dev.jjs.ast.JModVisitor.doAccept(JModVisitor.java:192)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:65)
Error:at com.google.gwt.dev.jjs.ast.JBinaryOperation.traverse(JBinaryOperation.java:76)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.doTraverse(JVisitor.java:527)
Error:at com.google.gwt.dev.jjs.ast.JExpressionStatement.traverse(JExpressionStatement.java:42)
Error:at com.google.gwt.dev.jjs.ast.JModVisitor$ListContext.traverse(JModVisitor.java:100)
Error:at com.google.gwt.dev.jjs.ast.JModVisitor.doAcceptWithInsertRemove(JModVisitor.java:212)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.acceptWithInsertRemove(JVisitor.java:81)
Error:at com.google.gwt.dev.jjs.ast.JBlock.traverse(JBlock.java:36)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:73)
Error:at com.google.gwt.dev.jjs.ast.JMethodBody.traverse(JMethodBody.java:52)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:69)
Error:at com.google.gwt.dev.jjs.ast.JMethod.traverse(JMethod.java:189)
Error:at com.google.gwt.dev.jjs.ast.JClassType.traverse(JClassType.java:62)
Error:at com.google.gwt.dev.jjs.ast.JModVisitor.doAccept(JModVisitor.java:202)
Error:at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:77)
Error:at com.google.gwt.dev.jjs.ast.JProgram.traverse(JProgram.java:799)
Error:at com.google.gwt.dev.jjs.impl.EqualityNormalizer.execImpl(EqualityNormalizer.java:198)
Error:at com.google.gwt.dev.jjs.impl.EqualityNormalizer.exec(EqualityNormalizer.java:187)
Error:at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.compile(JavaToJavaScriptCompiler.java:424)
Error:at com.google.gwt.dev.GWTCompiler.realizePermutation(GWTCompiler.java:511)
Error:at com.google.gwt.dev.GWTCompiler.compilePermutations(GWTCompiler.java:442)
Error:at com.google.gwt.dev.GWTCompiler.distill(GWTCompiler.java:358)
Error:at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:564)
Error:at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:554)
Error:at com.google.gwt.dev.GWTCompiler.main(GWTCompiler.java:214)
Error:at com.google.gwt.dev.jjs.impl.EqualityNormalizer$BreakupAssignOpsVisitor.endVisit(EqualityNormalizer.java:86)
Error:at com.google.gwt.dev.jjs.ast.JBinaryOperation.traverse(JBinaryOperation.java:79)
Error:at Gwt_15_Gxt_10_Test.java(87): null.nullField == 420
Error:at Gwt_15_Gxt_10_Test.java(87): null.nullField == 420 && 13 == null.nullMethod()
Error:at Gwt_15_Gxt_10_Test.java(85): {
Error:at Gwt_15_Gxt_10_Test.java(85): public final void handleEvent(<null> be);
Error:at Gwt_15_Gxt_10_Test.java(83): final class Gwt_15_Gxt_10_Test$KeyEventListener extends Object implements Listener
Error:<no source info>: <JProgram>

[obender]

I've replaced the KeyEvent with ComponentEvent and the GWT compiler error went away but now I'm getting the new exception:


Error:[ERROR] Line 36: Unexpected exception while processing element 'inherits'
Error:at java.lang.ClassLoader.defineClass1(Native Method)
Error:at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
Error:at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
Error:at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
Error:at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
Error:at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
Error:at java.security.AccessController.doPrivileged(Native Method)
Error:at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
Error:at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
Error:at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
Error:at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
Error:at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
Error:at com.google.gwt.benchmarks.rebind.BenchmarkGenerator.<clinit>(BenchmarkGenerator.java:66)
Error:at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
Error:at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
Error:at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
Error:at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
Error:at java.lang.Class.newInstance0(Class.java:350)
Error:at java.lang.Class.newInstance(Class.java:303)
Error:at com.google.gwt.dev.cfg.ModuleDefSchema$ObjAttrCvt.convertToArg(ModuleDefSchema.java:670)
Error:at com.google.gwt.dev.util.xml.HandlerArgs.convertToArg(HandlerArgs.java:64)
Error:at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:214)
Error:at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:257)
Error:at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:533)
Error:at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:878)
Error:at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1693)
Error:at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
Error:at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
Error:at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
Error:at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
Error:at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
Error:at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:310)
Error:at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$100(ReflectiveParser.java:48)
Error:at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:381)
Error:at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:244)
Error:at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:194)
Error:at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
Error:at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
Error:at java.lang.reflect.Method.invoke(Method.java:585)
Error:at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:223)
Error:at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:220)
Error:at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:872)
Error:at com.google.gwt.dev.cfg.ModuleDefLoader$1.load(ModuleDefLoader.java:156)
Error:at com.google.gwt.dev.cfg.ModuleDefLoader.doLoadModule(ModuleDefLoader.java:270)
Error:at com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath(ModuleDefLoader.java:128)
Error:at com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath(ModuleDefLoader.java:109)
Error:at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:562)
Error:at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:554)
Error:at com.google.gwt.dev.GWTCompiler.main(GWTCompiler.java:214)
Error:Failure while parsing XML
Error:at com.google.gwt.dev.util.xml.DefaultSchema.onHandlerException(DefaultSchema.java:56)
Error:at com.google.gwt.dev.util.xml.Schema.onHandlerException(Schema.java:65)
Error:at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:233)
Error:[ERROR] Line 5: Unexpected exception while processing element 'inherits'
Error:at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:334)

[darrellmeyer]

First, ContentPanel does not fire KeyPress. You should use a KeyNav:


public void onModuleLoad() {
ContentPanel cp1 = new ContentPanel();
new KeyNav<ComponentEvent>(cp1) {
@Override
public void onEnter(ComponentEvent ce) {
System.out.println("enter");
}
};
RootPanel.get().add(cp1);
}

[obender]

I don't think that the exception in my second message caused by that code.
Basically I've removed it all together and still getting the same exception.
In your experience what could cause the "Unexpected exception while processing element 'inherits'" with references to problems with class loader and XML parsing failures (full stack trace posted above)?
Maybe you know about any standard omissions that people do while migrating from myGWT 0.5.x to GXT that could cause this type of issues?