jnet exception in RWB in end-to-end-monitoring

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hi,

i have problems with jnet in end-to-end-monitoring:

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java.lang.NullPointerException

at com.sap.plaf.frog.FrogScrollPaneUI$1.propertyChange(FrogScrollPaneUI.java:113)

at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)

at java.awt.Component.firePropertyChange(Unknown Source)

at javax.swing.JScrollPane.setHorizontalScrollBar(Unknown Source)

at javax.swing.plaf.basic.BasicComboPopup.createScroller(Unknown Source)

at javax.swing.plaf.basic.BasicComboPopup.<init>(Unknown Source)

at com.sap.plaf.frog.FrogComboPopup.<init>(FrogComboPopup.java:21)

at com.sap.plaf.frog.FrogComboBoxUI.createPopup(FrogComboBoxUI.java:410)

at com.sap.plaf.frog.FrogComboBoxUI.installUI(FrogComboBoxUI.java:178)

at javax.swing.JComponent.setUI(Unknown Source)

at javax.swing.JComboBox.setUI(Unknown Source)

at javax.swing.JComboBox.updateUI(Unknown Source)

at javax.swing.JComboBox.init(Unknown Source)

at javax.swing.JComboBox.<init>(Unknown Source)

at com.sap.jnet.clib.JNcToolBar$ComboBox.<init>(JNcToolBar.java:68)

at com.sap.jnet.clib.JNcToolBar.addComboBox(JNcToolBar.java:196)

at com.sap.jnet.clib.JNcAppWindow.newUI(JNcAppWindow.java:878)

at com.sap.jnet.clib.JNcAppWindow.newData(JNcAppWindow.java:1520)

at com.sap.jnet.JNetData.createGraphFromDOM(JNetData.java:594)

at com.sap.jnet.JNetData.load(JNetData.java:815)

at com.sap.jnet.JNetApplet.initJNetApplet(JNetApplet.java:508)

at com.sap.jnet.JNetApplet.access$000(JNetApplet.java:40)

at com.sap.jnet.JNetApplet$1.run(JNetApplet.java:283)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

####

my jre is 1.6.0_11

thanks christoph