java.lang.IllegalArgumentException: The name parameter ('<error>') is not a valid Java identifier
        at org.openide.util.Parameters.javaIdentifierOrNull(Parameters.java:151)
        at org.openide.util.Parameters.javaIdentifier(Parameters.java:137)
        at org.netbeans.modules.j2ee.common.method.MethodModel$Variable.create(MethodModel.java:130)
        at org.netbeans.modules.j2ee.common.method.MethodModelSupport.createMethodModel(MethodModelSupport.java:104)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel$1.run(ComponentMethodModel.java:107)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel$1.run(ComponentMethodModel.java:96)
        at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:680)
        at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:607)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel.updateKeys(ComponentMethodModel.java:95)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel.access$500(ComponentMethodModel.java:74)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel$ClassIndexListenerImpl.handleTypes(ComponentMethodModel.java:238)
        at org.netbeans.modules.j2ee.ejbcore.ui.logicalview.ejb.shared.ComponentMethodModel$ClassIndexListenerImpl.typesAdded(ComponentMethodModel.java:216)
        at org.netbeans.api.java.source.ClassIndex$SPIListener.typesAdded(ClassIndex.java:505)
        at org.netbeans.modules.java.source.usages.ClassIndexImpl.typesEvent(ClassIndexImpl.java:137)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.parseFiles(RepositoryUpdater.java:2182)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.parseFiles(RepositoryUpdater.java:1827)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.compileFileFromRoots(RepositoryUpdater.java:2677)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.compileWithDeps(RepositoryUpdater.java:2607)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.access$3600(RepositoryUpdater.java:1240)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:1538)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:1283)
        at org.netbeans.modules.java.source.usages.ClassIndexManager.writeLock(ClassIndexManager.java:99)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:1280)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:1240)
        at org.netbeans.api.java.source.JavaSource$CompilationJob.run(JavaSource.java:1618)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)