NullPointerException in Grid View

tried to export a sql result (grid). result set is sticky and connection is closed. kind regards Thomas PostgreSQL 8.1.11 PostgreSQL Native Driver PostgreSQL 8.3 JDBC3 with SSL (build 603) Product: DbVisualizer Personal 6.0.10 Build: #1303 (2008/04/10 08:08) Java VM: Java HotSpot(TM) Server VM Java Version: 1.6.0_05 Java Vendor: Sun Microsystems Inc. OS Name: Linux OS Arch: i386 OS Version: 2.6.18.8-0.7-default An internal error occurred: Exception: java.lang.NullPointerException java.lang.NullPointerException The error may have affected the application state. Please notify vendor. Stack Trace: java.lang.NullPointerException at com.onseven.dbvis.editor.B.ā(Z:3033) at com.onseven.dbvis.f.B.A.A.ć(Z:799) at com.onseven.dbvis.f.B.B.ā(Z:2269) at com.onseven.dbvis.f.F.ā(Z:572) at com.onseven.dbvis._.k.ā(Z:2205) at com.onseven.dbvis._.e$18.execute(Z:3523) at se.pureit.swing.xmlactions.DelegateAction.actionPerformed(Z:1129) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.AbstractButton.doClick(AbstractButton.java:357) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272) at java.awt.Component.processMouseEvent(Component.java:6041) at javax.swing.JComponent.processMouseEvent(JComponent.java:3265) at java.awt.Component.processEvent(Component.java:5806) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4413) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4243) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2440) at java.awt.Component.dispatchEvent(Component.java:4243) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at com.onseven.dbvis.I.A.f.dispatchEvent(Z:2787) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)