# exception when doing controller.find() **URL:** \ **Category:** Classic Servoy\ **Created:** [April 17, 2005, 12:27pm UTC](https://forum.servoy.com/t/exception-when-doing-controller-find/4057 "2005-04-17T12:27:13Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![patrick](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@patrick](https://forum.servoy.com/u/patrick)\ **Post date:** [April 17, 2005, 12:27pm UTC](https://forum.servoy.com/t/exception-when-doing-controller-find/4057/1 "2005-04-17T12:27:13Z")
Hello, on one of my forms I get an error when doing controller.find(). Can anyone see from the log what goes wrong here?: org.mozilla.javascript.JavaScriptException: java.lang.NullPointerExceptionorg.mozilla.javascript.JavaScriptException: java.lang.NullPointerException at org.mozilla.javascript.JavaScriptException.wrapException(JavaScriptException.java:71) at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:457) at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1249) at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1942) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:94) at com.servoy.j2db.scripting.e.call(Unknown Source) at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1249) at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1942) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:94) at com.servoy.j2db.scripting.e.call(Unknown Source) at com.servoy.j2db.develop.debugger.k.a(Unknown Source) at com.servoy.j2db.develop.debugger.k.executeFunction(Unknown Source) at com.servoy.j2db.FormPanel.a(Unknown Source) at com.servoy.j2db.FormPanel.a(Unknown Source) at com.servoy.j2db.FormPanel$b.a(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel.a(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel.access$5(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel$5.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at javax.swing.plaf.basic.BasicTableUI$Handler.repostEvent(Unknown Source) at javax.swing.plaf.basic.BasicTableUI$Handler.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) java.lang.NullPointerException at com.servoy.j2db.dataui.SpecialTabPanel.setValidationEnabled(Unknown Source) at com.servoy.j2db.dataprocessing.d.if(Unknown Source) at com.servoy.j2db.FormPanel.u(Unknown Source) at com.servoy.j2db.dataui.SpecialTabPanel.setValidationEnabled(Unknown Source) at com.servoy.j2db.dataprocessing.d.if(Unknown Source) at com.servoy.j2db.FormPanel.u(Unknown Source) at com.servoy.j2db.FormPanel.null(Unknown Source) at [com.servoy.j2db.FormPanel.cN](http://com.servoy.j2db.FormPanel.cN)(Unknown Source) at com.servoy.j2db.FormPanel.access$0(Unknown Source) at com.servoy.j2db.FormPanel$JSForm.js\_find(Unknown Source) at inv8.invoke() at org.mozilla.javascript.FunctionObject.doInvoke(FunctionObject.java:537) at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:453) at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1249) at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1942) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:94) at com.servoy.j2db.scripting.e.call(Unknown Source) at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1249) at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1942) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:94) at com.servoy.j2db.scripting.e.call(Unknown Source) at com.servoy.j2db.develop.debugger.k.a(Unknown Source) at com.servoy.j2db.develop.debugger.k.executeFunction(Unknown Source) at com.servoy.j2db.FormPanel.a(Unknown Source) at com.servoy.j2db.FormPanel.a(Unknown Source) at com.servoy.j2db.FormPanel$b.a(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel.a(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel.access$5(Unknown Source) at com.servoy.j2db.dataui.AbstractScriptLabel$5.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at javax.swing.plaf.basic.BasicTableUI$Handler.repostEvent(Unknown Source) at javax.swing.plaf.basic.BasicTableUI$Handler.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) ---
**Author:** ![patrick](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@patrick](https://forum.servoy.com/u/patrick)\ **Post date:** [April 17, 2005, 12:59pm UTC](https://forum.servoy.com/t/exception-when-doing-controller-find/4057/2 "2005-04-17T12:59:19Z")
I narrowed the problem: the form that is giving the error has a tab panel that also shows tabs of a module. That module was not present when I did controller.find(). If the module is there, I don’t get that error. ---
**Author:** ![Jan\_Blok](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@Jan\_Blok](https://forum.servoy.com/u/Jan_Blok)\ **Post date:** [April 19, 2005, 1:40pm UTC](https://forum.servoy.com/t/exception-when-doing-controller-find/4057/3 "2005-04-19T13:40:30Z")
Added more checks to prevent, will be availeble in Servoy 2.2 rc6/final