# Cannot invoke java.lang.Boolean.booleanValue() on isCellEditable? **URL:** \ **Category:** Ignition\ **Tags:** vision, ignition81\ **Created:** [January 30, 2026, 2:40pm UTC](https://forum.inductiveautomation.com/t/cannot-invoke-java-lang-boolean-booleanvalue-on-iscelleditable/113660 "2026-01-30T14:40:05Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![bkarabinchak.psi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bkarabinchak.psi/32/83567_2.png) [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Post date:** [January 30, 2026, 2:40pm UTC](https://forum.inductiveautomation.com/t/cannot-invoke-java-lang-boolean-booleanvalue-on-iscelleditable/113660/1 "2026-01-30T14:40:05Z")
Using ignition Vision 8.1.47 with a power table. Getting a error I haven’t experienced before on the isCellEditable extension function. I only want a subset of columns editable (any row) and if the tables root container custom property `editable` (which is a bool) is True then we are good to go. Put in some print statements for testing. This is throwing me the following output - ```python EDITABLE_COLUMNS = ['LIN', 'LOX', 'PLAR','CLAR','weightSource'] def isCellEditable(self, rowIndex, colIndex, colName, value): """ Only the product and weight source columns are editable, any row. """ print colName in EDITABLE_COLUMNS print self.parent.editable return colName in EDITABLE_COLUMNS and self.parent.editable ``` This is giving me the following output - ```python True True Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException: Cannot invoke "java.lang.Boolean.booleanValue()" because the return value of "com.inductiveautomation.vision.api.client.components.model.ExtensionFunction.invoke(com.inductiveautomation.vision.api.client.components.model.ExtensibleComponent, com.inductiveautomation.ignition.common.util.LoggerEx, String, java.lang.Class, Object, Object[])" is null at com.inductiveautomation.factorypmi.application.components.VisionAdvancedTable$Model.isCellEditable(VisionAdvancedTable.java:1789) at com.jidesoft.grid.TableModelWrapperImpl.isCellEditable(Unknown Source) at com.jidesoft.grid.DefaultTableModelWrapper.isCellEditable(Unknown Source) at com.jidesoft.grid.TableModelWrapperImpl.isCellEditable(Unknown Source) at com.jidesoft.grid.DefaultTableModelWrapper.isCellEditable(Unknown Source) at java.desktop/javax.swing.JTable.isCellEditable(Unknown Source) at com.jidesoft.grid.JideTable.editCellAt(Unknown Source) at com.jidesoft.grid.CellSpanTable.editCellAt(Unknown Source) at java.desktop/javax.swing.plaf.basic.BasicTableUI$Handler.adjustSelection(Unknown Source) at java.desktop/javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(Unknown Source) at com.jidesoft.swing.DelegateMouseInputListener.mousePressed(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mousePressed(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mousePressed(Unknown Source) at java.desktop/java.awt.Component.processMouseEvent(Unknown Source) at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source) at java.desktop/java.awt.Component.processEvent(Unknown Source) at java.desktop/java.awt.Container.processEvent(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at com.jidesoft.docking.DockingUtils.a(Unknown Source) at com.jidesoft.docking.DefaultDockingManager.handleEvent(Unknown Source) at com.jidesoft.docking.DefaultDockingManager$a3.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$SelectiveAWTEventListener.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Unknown Source) at java.desktop/java.awt.Toolkit.notifyAWTEventListeners(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.run(Unknown Source) ``` So I get both are True so I would expect True, but nothing happens when I try to edit the cell. My onCellEdited is the supplied example of ```python def onCellEdited(self, rowIndex, colIndex, colName, oldValue, newValue): self.data = system.dataset.setValue(self.data, rowIndex, colIndex, newValue) ``` Can’t figure out what I am doing wrong here. Even if I change `isCellEditable` to just `return True` now I still get this error. Any ideas? ---
**Author:** ![bkarabinchak.psi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bkarabinchak.psi/32/83567_2.png) [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\ **Post date:** [January 30, 2026, 2:54pm UTC](https://forum.inductiveautomation.com/t/cannot-invoke-java-lang-boolean-booleanvalue-on-iscelleditable/113660/2 "2026-01-30T14:54:18Z")
I figured out. I had put it into a scripting function and was calling it like ```python def isCellEditable(self, rowIndex, colIndex, colName, value): PlantSetup.gui.isCellEditable(self, rowIndex, colIndex, colName, value) ``` But I needed ```python def isCellEditable(self, rowIndex, colIndex, colName, value): return PlantSetup.gui.isCellEditable(self, rowIndex, colIndex, colName, value) ``` Too early on a Friday for me.