java.lang.AssertionError at org.netbeans.spi.java.project.support.ui.BrokenReferencesSupport$ProjectDecorator.(BrokenReferencesSupport.java:328) at org.netbeans.spi.java.project.support.ui.BrokenReferencesSupport$ProjectDecorator.create(BrokenReferencesSupport.java:356) at org.netbeans.spi.java.project.support.ui.BrokenReferencesSupport.isBroken(BrokenReferencesSupport.java:114) at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider.hasBrokenLinks(AbstractLogicalViewProvider.java:444) at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider$5.run(AbstractLogicalViewProvider.java:399) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.AssertionError at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1493) at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider.testBroken(AbstractLogicalViewProvider.java:439) at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider$1.propertyChange(AbstractLogicalViewProvider.java:202) at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327) at org.netbeans.spi.project.support.ant.SequentialPropertyEvaluator.stateChanged(SequentialPropertyEvaluator.java:208) at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:329) at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) at org.netbeans.spi.project.support.ant.ProjectProperties$PP$2.run(ProjectProperties.java:348) at org.netbeans.spi.project.support.ant.ProjectProperties$PP$2.run(ProjectProperties.java:346) at org.openide.util.Mutex.readAccess(Mutex.java:290) at org.netbeans.spi.project.support.ant.ProjectProperties$PP$3.run(ProjectProperties.java:362) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)