java.lang.IllegalArgumentException: Negative size
        at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:703)
        at org.netbeans.core.output2.FileMapStorage.getReadBuffer(FileMapStorage.java:281)
        at org.netbeans.core.output2.AbstractLines.getText(AbstractLines.java:130)
        at org.netbeans.core.output2.OutputDocument.getText(OutputDocument.java:204)
        at org.netbeans.core.output2.ExtPlainView.getText(ExtPlainView.java:164)
        at org.netbeans.core.output2.ExtPlainView.getLineWidth(ExtPlainView.java:371)
        at org.netbeans.core.output2.ExtPlainView.updateDamage(ExtPlainView.java:397)
        at javax.swing.text.PlainView.insertUpdate(PlainView.java:425)
        at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(BasicTextUI.java:1590)
        at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(BasicTextUI.java:1849)
        at org.netbeans.core.output2.OutputDocument.fireDocumentEvent(OutputDocument.java:481)
        at org.netbeans.core.output2.OutputDocument.stateChanged(OutputDocument.java:458)
        at org.netbeans.core.output2.AbstractLines.run(AbstractLines.java:250)
        at org.openide.util.Mutex.doEvent(Mutex.java:1335)
        at org.openide.util.Mutex.readAccess(Mutex.java:345)
        at org.netbeans.core.output2.AbstractLines.fire(AbstractLines.java:244)
        at org.netbeans.core.output2.AbstractLines.actionPerformed(AbstractLines.java:214)
        at javax.swing.Timer.fireActionPerformed(Timer.java:271)
        at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)