This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Don, This is probably a race condition with the animation and the probe changes. -Jeff > Full Name: Don > Email Address: address@hidden > Organization: Unidata > Package Version: 2.5b1 build date:2008-04-06 07:05 UTC > Operating System: Windows Vista > Hardware: Java: home: C:\Program Files\IDV_2.5b1\jre version: 1.6.0_01 > j3d:1.5.1 fcs (build6) > Description of problem: Property change > java.lang.NullPointerException > > ****************** > Stack trace: > java.lang.NullPointerException > at org.jfree.chart.ChartPanel.chartChanged(ChartPanel.java:1377) > at > ucar.unidata.idv.control.chart.ChartHolder$1.chartChanged(ChartHolder.java:517) > at > ucar.unidata.idv.control.chart.ChartManager.signalChartChanged(ChartManager.java:493) > at > ucar.unidata.idv.control.chart.ChartManager.timeChanged(ChartManager.java:788) > at > ucar.unidata.idv.control.chart.ChartManager.timeChanged(ChartManager.java:780) > at > ucar.unidata.idv.control.StationModelControl.timeChanged(StationModelControl.java:594) > at > ucar.unidata.idv.control.DisplayControlImpl.propertyChange(DisplayControlImpl.java:2486) > at > ucar.unidata.idv.control.StationModelControl.propertyChange(StationModelControl.java:623) > at > java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) > at > java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) > at ucar.visad.display.Displayable.firePropertyChange(Displayable.java:1039) > at > ucar.visad.display.Animation$AnimationControlListener.controlChanged(Animation.java:1029) > at visad.Control.changeControl(Control.java:95) > at visad.java3d.AnimationControlJ3D.setCurrent(AnimationControlJ3D.java:155) > at visad.AnimationSetControl.setSet(AnimationSetControl.java:150) > at visad.java3d.AnimationControlJ3D.setSet(AnimationControlJ3D.java:358) > at ucar.visad.display.Animation.setSet(Animation.java:572) > at ucar.visad.display.DisplayMaster.dataChange(DisplayMaster.java:2127) > at ucar.visad.display.DisplayableData.dataChange(DisplayableData.java:489) > at ucar.visad.display.DisplayableData$1.doAction(DisplayableData.java:249) > at visad.ActionImpl.run(ActionImpl.java:364) > at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:95) > > > Ticket Details =================== Ticket ID: KNM-494316 Department: Support IDV Priority: Normal Status: Closed