# AbstractVisionPanel SerializationException **URL:** \ **Category:** Module Development\ **Created:** [February 3, 2013, 8:16pm UTC](https://forum.inductiveautomation.com/t/abstractvisionpanel-serializationexception/5794 "2013-02-03T20:16:35Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Kyle\_Chase](https://avatars.discourse-cdn.com/v4/letter/k/9de0a6/32.png) [@Kyle\_Chase](https://forum.inductiveautomation.com/u/Kyle_Chase)\ **Post date:** [February 3, 2013, 8:16pm UTC](https://forum.inductiveautomation.com/t/abstractvisionpanel-serializationexception/5794/1 "2013-02-03T20:16:35Z")
Hello All, I’m creating a component that extends from AbstractVisionPanel. It has a main class registered with the related bean info, and it is made up from roughly 12 other classes. Everything works as it should mostly in the designer. However, when I save the windows, I get the following error. ```auto com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Error during serialization for property 'contentPane' on object '[FPMIWindow]Main Window (1)' at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:300) at com.inductiveautomation.factorypmi.designer.xmlserialization.WindowDelegate.serialize(WindowDelegate.java:29) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:45) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.serialize(XMLSerializer.java:430) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.serializeBinary(XMLSerializer.java:412) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.saveContainer(WindowWorkspace.java:1525) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.commitDesignable(WindowWorkspace.java:1211) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.commitAll(WindowWorkspace.java:607) at com.inductiveautomation.factorypmi.designer.model.VisionDesignerImpl.notifyProjectSaveStart(VisionDesignerImpl.java:955) at com.inductiveautomation.ignition.designer.IgnitionDesigner.handleSave(IgnitionDesigner.java:1286) at com.inductiveautomation.ignition.designer.IgnitionDesigner.access$2800(IgnitionDesigner.java:204) at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.handleSaveAction(IgnitionDesigner.java:1873) at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.access$1300(IgnitionDesigner.java:1433) at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler$6.actionPerformed(IgnitionDesigner.java:1551) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at com.jidesoft.plaf.basic.BasicJideButtonListener.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.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$200(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(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.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Error during serialization for property 'layout' on object '[MapPanel]com.koerr.client.components.MapPanel[MapPanel,29,23,593x419,layout=java.awt.FlowLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777481,maximumSize=,minimumSize=,preferredSize=]' at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:300) at com.inductiveautomation.factorypmi.designer.xmlserialization.DefaultComponentDelegate.serializeProperties(DefaultComponentDelegate.java:109) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serialize(DefaultObjectSerializationDelegate.java:323) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:45) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:229) at com.inductiveautomation.factorypmi.designer.xmlserialization.BasicContainerDelegate.serializeProperties(BasicContainerDelegate.java:121) at com.inductiveautomation.factorypmi.designer.xmlserialization.BasicContainerDelegate.serialize(BasicContainerDelegate.java:42) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:45) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:229) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:218) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.doProperty(DefaultObjectSerializationDelegate.java:271) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:298) ... 51 more Caused by: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Unable to create clean copy of class com.koerr.client.components.MapPanel$MapLayout at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.getCleanCopy(XMLSerializer.java:494) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.getCleanCopy(XMLSerializationContext.java:67) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:289) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serialize(DefaultObjectSerializationDelegate.java:323) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:45) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:229) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:218) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.doProperty(DefaultObjectSerializationDelegate.java:271) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:298) ... 62 more Ignition v7.5.5-beta5 (b1234) Java: Oracle Corporation 1.7.0_11 ``` I’m not sure where to start. Any pointers on where to start? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [February 3, 2013, 11:43pm UTC](https://forum.inductiveautomation.com/t/abstractvisionpanel-serializationexception/5794/2 "2013-02-03T23:43:37Z")
Well, it looks like your MapLayout class isn’t quite compatible with the XML serialization. Maybe it’s missing a constructor or a setter that it needs in order to make a clean copy? ---
**Author:** ![Kyle\_Chase](https://avatars.discourse-cdn.com/v4/letter/k/9de0a6/32.png) [@Kyle\_Chase](https://forum.inductiveautomation.com/u/Kyle_Chase)\ **Post date:** [February 4, 2013, 1:31pm UTC](https://forum.inductiveautomation.com/t/abstractvisionpanel-serializationexception/5794/3 "2013-02-04T13:31:39Z")
Thanks Kevin. I didn’t have my beaninfos search set properly. All good now. ---
**Author:** ![cagibson](https://avatars.discourse-cdn.com/v4/letter/c/e480ec/32.png) [@cagibson](https://forum.inductiveautomation.com/u/cagibson)\ **Post date:** [March 13, 2019, 5:58pm UTC](https://forum.inductiveautomation.com/t/abstractvisionpanel-serializationexception/5794/4 "2019-03-13T17:58:10Z")
Hey Kyle I’m having the exact same issue here, what exactly did you do to fix it?