[rules-dev] Failure to load module 'org.drools.guvnor.Guvnor'

[Ashish Soni]

Hi All ,

When i try to debug the Guvnor using eclipse and GWT shell  i am getting
below error can some one please let me know what is the issue

[ERROR] Failure to load module 'org.drools.guvnor.Guvnor'
java.lang.NoSuchMethodError:
org.eclipse.jdt.internal.compiler.lookup.ProblemReferenceBinding.closestMatch()Lorg/eclipse/jdt/internal/compiler/lookup/ReferenceBinding;
    at
com.google.gwt.dev.javac.LongFromJSNIChecker$CheckingVisitor.findClass(LongFromJSNIChecker.java:195)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker$CheckingVisitor.getMethod(LongFromJSNIChecker.java:223)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker$CheckingVisitor.checkMethodRef(LongFromJSNIChecker.java:100)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker$CheckingVisitor.checkRefs(LongFromJSNIChecker.java:140)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker$CheckingVisitor.endVisit(LongFromJSNIChecker.java:63)
    at
org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:242)
    at
org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1239)
    at
org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:687)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker.check(LongFromJSNIChecker.java:307)
    at
com.google.gwt.dev.javac.LongFromJSNIChecker.check(LongFromJSNIChecker.java:297)
    at
com.google.gwt.dev.javac.CompilationUnitInvalidator.validateCompilationUnits(CompilationUnitInvalidator.java:138)
    at
com.google.gwt.dev.javac.CompilationState.compile(CompilationState.java:123)
    at com.google.gwt.dev.cfg.ModuleDef.updateTypeOracle(ModuleDef.java:477)
    at com.google.gwt.dev.cfg.ModuleDef.getTypeOracle(ModuleDef.java:324)
    at
com.google.gwt.dev.GWTShell$BrowserWidgetHostImpl.createModuleSpaceHost(GWTShell.java:252)
    at
com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad(BrowserWidgetIE6.java:72)
    at
com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke(BrowserWidgetIE6.java:139)
    at
com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke(IDispatchImpl.java:294)
    at
com.google.gwt.dev.shell.ie.IDispatchImpl.method6(IDispatchImpl.java:194)
    at
org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:117)
    at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2966)
    at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
    at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
    at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)
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