java.lang.AssertionError: /Users/jdwyah/.netbeans/6.7m3/update/download/org-netbeans-modules-haml.nbm
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl.doValidate(InstallSupportImpl.java:739)
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl.doValidate(InstallSupportImpl.java:708)
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl.access$700(InstallSupportImpl.java:102)
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl$2.call(InstallSupportImpl.java:234)
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl$2.call(InstallSupportImpl.java:209)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
        at java.util.concurrent.FutureTask.run(FutureTask.java:123)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:613)
Caused: java.util.concurrent.ExecutionException: java.lang.AssertionError: /Users/jdwyah/.netbeans/6.7m3/update/download/org-netbeans-modules-haml.nbm
        at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:205)
        at java.util.concurrent.FutureTask.get(FutureTask.java:80)
        at org.netbeans.modules.autoupdate.services.InstallSupportImpl.doValidate(InstallSupportImpl.java:250)
        at org.netbeans.api.autoupdate.InstallSupport.doValidate(InstallSupport.java:110)
        at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.handleValidation(InstallStep.java:407)
        at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.doDownloadAndVerificationAndInstall(InstallStep.java:185)
        at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.access$200(InstallStep.java:97)
        at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$2.run(InstallStep.java:174)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:573)
        at org.openide.util.RequestProcessor$Processor.doEvaluate(RequestProcessor.java:1050)
        at org.openide.util.RequestProcessor$Task.waitFinished(RequestProcessor.java:738)
        at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$1.propertyChange(InstallStep.java:158)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:333)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:270)
        at java.awt.Component.firePropertyChange(Component.java:7277)
        at org.netbeans.modules.autoupdate.ui.wizards.OperationPanel.access$000(OperationPanel.java:61)
        at org.netbeans.modules.autoupdate.ui.wizards.OperationPanel$1.run(OperationPanel.java:81)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:573)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1005)