ArrayIndexOutOfBoundsException in JDeveloper

Question

Hi,
I am working with JDeveloper for 11.5.10 CU2. I extended a View object for an LOV and created the relevant substitution for it.
It was working fine and when I had to create another substitution it did not allow me to go ahead.
On the click of the the Substitutions Tab in the Edit Business Components Project window I get the following error:
java.lang.ArrayIndexOutOfBoundsException
     at oracle.jbo.dt.ui.main.tree.DtuTreeNode.getChildAt(DtuTreeNode.java:109)
     at javax.swing.tree.DefaultTreeModel.nodesWereInserted(DefaultTreeModel.java:293)
     at javax.swing.tree.DefaultTreeModel.insertNodeInto(DefaultTreeModel.java:223)
     at oracle.jbo.dt.ui.main.tree.DtuBaseTree.addChild(DtuBaseTree.java:142)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.addChild(DtuJboTree.java:472)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.populateObject(DtuJboTree.java:465)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.populateContainerChildren(DtuJboTree.java:429)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.populateFromContainer(DtuJboTree.java:393)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.populateContainerChildren(DtuJboTree.java:414)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.populateTree(DtuJboTree.java:362)
     at oracle.jbo.dt.ui.main.tree.DtuJboTree.setApplication(DtuJboTree.java:118)
     at oracle.jbo.dt.ui.pkg.PKSubsPanel.enter(PKSubsPanel.java:169)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.selectPage(DtuWizard.java:620)
     at oracle.jbo.dt.ui.pkg.PKAppWizard.selectPage(PKAppWizard.java:258)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.selectPage(DtuWizard.java:595)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.newMddPageSelected(DtuWizard.java:633)
     at oracle.jbo.dt.ui.main.dlg.DtjMddTraversable.onEntry(DtuMddNavigable.java:255)
     at oracle.ide.panels.MDDPanel.enterTraversableImpl(MDDPanel.java:649)
     at oracle.ide.panels.MDDPanel.enterTraversable(MDDPanel.java:630)
     at oracle.ide.panels.MDDPanel.access$7000571(MDDPanel.java:86)
     at oracle.ide.panels.MDDPanel$Tsl.updateSelectedNavigable(MDDPanel.java:933)
     at oracle.ide.panels.MDDPanel$Tsl.actionPerformed(MDDPanel.java:803)
     at javax.swing.Timer.fireActionPerformed(Timer.java:271)
     at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:141)
     at java.awt.Dialog$1.run(Dialog.java:540)
     at java.awt.Dialog.show(Dialog.java:561)
     at java.awt.Component.show(Component.java:1133)
     at java.awt.Component.setVisible(Component.java:1088)
     at oracle.jbo.dt.ui.main.dlg.DtjDialog.setVisible(DtjDialog.java:137)
     at oracle.jbo.dt.ui.main.dlg.DtjMddWizardDialog.setVisible(DtuWizard.java:1922)
     at oracle.bali.ewt.dialog.JEWTDialog.runDialog(Unknown Source)
     at oracle.jbo.dt.ui.main.dlg.DtjDialog.showDialog(DtjDialog.java:115)
     at oracle.jbo.dt.ui.main.dlg.DtjMddWizardDialog.showDialog(DtuWizard.java:1881)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.createMddWizard(DtuWizard.java:422)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.setVisible(DtuWizard.java:276)
     at oracle.jbo.dt.ui.main.dlg.DtuWizard.showDialog(DtuWizard.java:254)
     at oracle.jbo.dt.jdevx.ui.JdxMenuManager.invokePackageWizard(JdxMenuManager.java:877)
     at oracle.jbo.dt.jdevx.ui.JdxMenuManager.invokePackageWizard(JdxMenuManager.java:854)
     at oracle.jbo.dt.ui.main.DtuMenuManager.doEditMenuAction(DtuMenuManager.java:1150)
     at oracle.jbo.dt.ui.main.DtuMenuManager.doMenuAction(DtuMenuManager.java:1006)
     at oracle.jbo.dt.jdevx.ui.JdxMenuManager.doMenuAction(JdxMenuManager.java:533)
     at oracle.jbo.dt.ui.main.DtuMenuManager.doAction(DtuMenuManager.java:838)
     at oracle.jbo.dt.ui.main.DtuMenuManager.doAction(DtuMenuManager.java:823)
     at oracle.jbo.dt.jdevx.ui.JdxMenuManager.doActionPerformed(JdxMenuManager.java:391)
     at oracle.jbo.dt.jdevx.ui.JdxMenuInvoker.run(JdxMenuManager.java:1076)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
I tried restarting JDeveloper but it still persists. Any help in this regard would be appreciated.
Warm Regards,
Jasmine.

Answer 1

public WizardPage getPageAt(int index)
Returns a page by index.
Parameters:
index - the page index
Throws:
ArrayIndexOutOfBoundsException - If an invalid index was given
Try to check your implementation before the error existed. If you think the code is correct try to CLEAN your project (I mean, go to RUN then select clean). Then try to recompile. Sometimes intermittent errors appears when your code is not clean.
TIP:
* In JDEV the XML file (PageDef) is updated automatically, try to look at those files because there are times when you remove something, the XML is not properly updated (you have to clean it manually sometimes in explorer).
*The code is autogenerated when you add something, right. Sometimes the arrangement of code affects the output.
I hope this can help you somehow. God bless.
Cykun