oracle.jdevimpl.webapp.faces.backingfile.BackingFileException: Could not invoke getComponentType method

Tried creating an ADF page.

I have written a java code and now in the ADF page i am trying to create a binding for one of my input text based on the java code.

I got below error.

oracle.jdevimpl.webapp.faces.backingfile.BackingFileException: Could not invoke getComponentType method
at oracle.jdevimpl.webapp.faces.backingfile.BackingFileUtils.getBindingFieldType(BackingFileUtils.java:714)
at oracle.jdevimpl.webapp.inspector.propertyeditor.FacesBindingPanel.managedBeanChanged(FacesBindingPanel.java:161)
at oracle.jdevimpl.webapp.inspector.propertyeditor.AbstractFacesBindingPanel$InnerListeners.itemStateChanged(AbstractFacesBindingPanel.java:417)
at javax.swing.JComboBox.fireItemStateChanged(JComboBox.java:1205)
at javax.swing.JComboBox.selectedItemChanged(JComboBox.java:1262)
at javax.swing.JComboBox.contentsChanged(JComboBox.java:1309)
at javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:100)
at javax.swing.DefaultComboBoxModel.setSelectedItem(DefaultComboBoxModel.java:88)
at javax.swing.JComboBox.setSelectedItem(JComboBox.java:557)
at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:603)
at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(BasicComboPopup.java:817)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
at java.awt.Component.processMouseEvent(Component.java:6289)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(BasicComboPopup.java:481)
at java.awt.Component.processEvent(Component.java:6054)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4652)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4482)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4482)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:644)
at java.awt.EventQueue.access$000(EventQueue.java:85)
at java.awt.EventQueue$1.run(EventQueue.java:603)
at java.awt.EventQueue$1.run(EventQueue.java:601)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$2.run(EventQueue.java:617)
at java.awt.EventQueue$2.run(EventQueue.java:615)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:614)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
at java.awt.Dialog$1.run(Dialog.java:1046)
at java.awt.Dialog$3.run(Dialog.java:1098)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Dialog.java:1096)
at java.awt.Component.show(Component.java:1585)
at java.awt.Component.setVisible(Component.java:1537)
at java.awt.Window.setVisible(Window.java:842)
at java.awt.Dialog.setVisible(Dialog.java:986)
at oracle.bali.ewt.dialog.JEWTDialog.runDialog(JEWTDialog.java:395)
at oracle.bali.ewt.dialog.JEWTDialog.runDialog(JEWTDialog.java:356)
at oracle.bali.inspector.AbstractCustomEditorAction.actionPerformed(AbstractCustomEditorAction.java:69)
at oracle.ide.inspector.LazyLoadMenuButton.callRealAction(LazyLoadMenuButton.java:78)
at oracle.ide.inspector.LazyLoadMenuButton.access$000(LazyLoadMenuButton.java:22)
at oracle.ide.inspector.LazyLoadMenuButton$2$1.run(LazyLoadMenuButton.java:60)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:642)
at java.awt.EventQueue.access$000(EventQueue.java:85)
at java.awt.EventQueue$1.run(EventQueue.java:603)
at java.awt.EventQueue$1.run(EventQueue.java:601)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:612)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)





The reason is when you wanted to add a binding to a particular element in your adf page it should be part of your backing bean and not the managed bean that you have created at later point of time.

to achieve your functionality while creating the ADF page choose the following option.



this will allow all your ui components to be exposed as java object and you can manipulate the output in the backend java code.