Unexpected exception while processing element 'inherits'

[obender]

I finally converted my project from myGWT to GWT 1.5 RC1 + GXT 1.0 B4, the java part compiles just fine but when GWT compiler start I receive the following errors:

Any ideas what it could be?

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)

[obender]

I've re-downloaded beta4 again and now getting this 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)

[obender]

submitted a bug:
http://extjs.com/forum/showthread.php?t=37843