Error undoing in design mode

[irock]

This keeps happening to me when undoing a lot of stuff

Code: [Select]

Level:     ERROR
When:      2016-12-14 21:47:21:616
From:      root

Unexpected problem on thread AWT-EventQueue-0: null

Throwable: java.lang.NullPointerException
at stencyl.sw.editors.snippet.designer.EditArea.refreshVisualContext(EditArea.java:3454)
at stencyl.sw.editors.snippet.designer.EditArea$AddBlocksToGroup.undo(EditArea.java:4085)
at javax.swing.undo.CompoundEdit.undo(CompoundEdit.java:63)
at javax.swing.undo.UndoManager.undoTo(UndoManager.java:335)
at javax.swing.undo.UndoManager.undo(UndoManager.java:413)
at stencyl.sw.editors.snippet.designer.Undo.undo(Undo.java:30)
at stencyl.sw.editors.snippet.designer.SnippetDesigner.actionPerformed(SnippetDesigner.java:1426)
at stencyl.sw.actions.SAction.actionPerformed(SAction.java:125)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
at javax.swing.AbstractButton.doClick(AbstractButton.java:356)
at javax.swing.plaf.basic.BasicMenuItemUI$Actions.actionPerformed(BasicMenuItemUI.java:802)
at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663)
at javax.swing.JComponent.processKeyBinding(JComponent.java:2882)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:699)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706)
at javax.swing.JMenuBar.processKeyBinding(JMenuBar.java:677)
at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:307)
at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:293)
at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2974)
at javax.swing.JComponent.processKeyBindings(JComponent.java:2966)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2845)
at java.awt.Component.processEvent(Component.java:6310)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771)
at java.awt.Component.dispatchEventImpl(Component.java:4760)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)


[LIBERADO]

This also happens to me.

[rob1221]

Is there a reliable way to reproduce this error?

• Status changed from New to Need Info

[irock]

This doesn't appear to be the same error but it also happens while undoing

Code: [Select]

Level:     ERROR
When:      2017-05-07 18:47:19:427
From:      root

Unexpected problem on thread AWT-EventQueue-0: Index: 1, Size: 0

Throwable: java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
at java.util.ArrayList.rangeCheckForAdd(ArrayList.java:661)
at java.util.ArrayList.add(ArrayList.java:473)
at stencyl.sw.editors.snippet.designer.block.Group.insertBlockAt(Group.java:411)
at stencyl.sw.editors.snippet.designer.block.Group.combineAt(Group.java:421)
at stencyl.sw.editors.snippet.designer.EditArea$PullBlocksFromGroup.undo(EditArea.java:3988)
at javax.swing.undo.CompoundEdit.undo(CompoundEdit.java:63)
at javax.swing.undo.UndoManager.undoTo(UndoManager.java:335)
at javax.swing.undo.UndoManager.undo(UndoManager.java:413)
at stencyl.sw.editors.snippet.designer.Undo.undo(Undo.java:30)
at stencyl.sw.editors.snippet.designer.SnippetDesigner.actionPerformed(SnippetDesigner.java:1426)
at stencyl.sw.actions.SAction.actionPerformed(SAction.java:125)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
at javax.swing.AbstractButton.doClick(AbstractButton.java:356)
at javax.swing.plaf.basic.BasicMenuItemUI$Actions.actionPerformed(BasicMenuItemUI.java:802)
at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663)
at javax.swing.JComponent.processKeyBinding(JComponent.java:2882)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:699)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706)
at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706)
at javax.swing.JMenuBar.processKeyBinding(JMenuBar.java:677)
at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:307)
at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:293)
at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2974)
at javax.swing.JComponent.processKeyBindings(JComponent.java:2966)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2845)
at java.awt.Component.processEvent(Component.java:6310)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771)
at java.awt.Component.dispatchEventImpl(Component.java:4760)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Here's a gif. I can get it to happen every time.

I can provide the game or behavior privately if it's needed in order to reproduce the issue.

• Status changed from Need Info to Confirmed

[irock]

Here's a new error I got when undoing.

Code: [Select]

java.lang.NullPointerException: Cannot invoke "stencyl.sw.editors.snippet.designer.block.Block.isEvent()" because the return value of "stencyl.sw.editors.snippet.designer.block.Group.getFirst()" is null
at stencyl.sw.editors.snippet.designer.EditArea.refreshVisualContext(EditArea.java:3848)
at stencyl.sw.editors.snippet.designer.EditArea$AddBlocksToGroup.undo(EditArea.java:4482)
at java.desktop/javax.swing.undo.CompoundEdit.undo(Unknown Source)
at java.desktop/javax.swing.undo.UndoManager.undoTo(Unknown Source)
at java.desktop/javax.swing.undo.UndoManager.tryUndoOrRedo(Unknown Source)
at java.desktop/javax.swing.undo.UndoManager.undo(Unknown Source)
at stencyl.sw.editors.snippet.designer.Undo.undo(Undo.java:30)
at stencyl.sw.editors.snippet.designer.SnippetDesigner.actionPerformed(SnippetDesigner.java:1450)
at stencyl.sw.actions.SAction.actionPerformed(SAction.java:125)
at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at java.desktop/javax.swing.AbstractButton.doClick(Unknown Source)
at java.desktop/javax.swing.AbstractButton.doClick(Unknown Source)
at java.desktop/javax.swing.plaf.basic.BasicMenuItemUI$Actions.actionPerformed(Unknown Source)
at java.desktop/javax.swing.SwingUtilities.notifyAction(Unknown Source)
at java.desktop/javax.swing.JComponent.processKeyBinding(Unknown Source)
at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source)
at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source)
at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source)
at java.desktop/javax.swing.JMenuBar.processKeyBinding(Unknown Source)
at java.desktop/javax.swing.KeyboardManager.fireBinding(Unknown Source)
at java.desktop/javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
at java.desktop/javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
at java.desktop/javax.swing.JComponent.processKeyBindings(Unknown Source)
at java.desktop/javax.swing.JComponent.processKeyEvent(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 java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
at java.desktop/java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(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.Window.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)