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Bug 363627 - Crashes when moving component with arrow keys
Summary: Crashes when moving component with arrow keys
Status: CLOSED FIXED
Alias: None
Product: z_Archived
Classification: Eclipse Foundation
Component: WindowBuilder (show other bugs)
Version: unspecified   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Alexander Mitin CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-11-11 17:04 EST by Bernie Hunt CLA
Modified: 2021-06-04 16:45 EDT (History)
1 user (show)

See Also:

Attachments
crash report file (8.10 KB, application/x-zip-compressed)
2011-11-11 17:04 EST, Bernie Hunt CLA 		no flags Details
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Description Bernie Hunt CLA 2011-11-11 17:04:36 EST 
Created attachment 206886 [details]
crash report file

I try to move a button object with the arrow keys to get the exact alignment desired. The objects movements are erratic and do not follow the arrow key pressed. After a couple of keystrokes, the program crashes and says Internal Error, WindowBuilder encountered unexpected internal error. The stack trace is;

java.lang.NullPointerException
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.place(PlacementsSupport.java:393)
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.doCommit(PlacementsSupport.java:386)
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.commit(PlacementsSupport.java:154)
	at org.eclipse.wb.internal.swing.gef.policy.layout.AbsoluteLayoutEditPolicy$1.executeEdit(AbsoluteLayoutEditPolicy.java:194)
	at org.eclipse.wb.core.gef.command.EditCommand$1.run(EditCommand.java:52)
	at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:318)
	at org.eclipse.wb.core.gef.command.EditCommand.execute(EditCommand.java:50)
	at org.eclipse.wb.internal.gef.core.CompoundCommand.execute(CompoundCommand.java:89)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand.access$0(CompoundEditCommand.java:1)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand$1.run(CompoundEditCommand.java:47)
	at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:318)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand.execute(CompoundEditCommand.java:45)
	at org.eclipse.wb.internal.gef.core.EditDomain.executeCommand(EditDomain.java:59)
	at org.eclipse.wb.internal.core.gef.policy.layout.absolute.KeyboardMovingLayoutEditPolicy$1$1.run(KeyboardMovingLayoutEditPolicy.java:182)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

Full context stack trace:
java.lang.NullPointerException
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.place(PlacementsSupport.java:393)
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.doCommit(PlacementsSupport.java:386)
	at org.eclipse.wb.internal.core.gef.policy.snapping.PlacementsSupport.commit(PlacementsSupport.java:154)
	at org.eclipse.wb.internal.swing.gef.policy.layout.AbsoluteLayoutEditPolicy$1.executeEdit(AbsoluteLayoutEditPolicy.java:194)
	at org.eclipse.wb.core.gef.command.EditCommand$1.run(EditCommand.java:52)
	at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:318)
	at org.eclipse.wb.core.gef.command.EditCommand.execute(EditCommand.java:50)
	at org.eclipse.wb.internal.gef.core.CompoundCommand.execute(CompoundCommand.java:89)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand.access$0(CompoundEditCommand.java:1)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand$1.run(CompoundEditCommand.java:47)
	at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:318)
	at org.eclipse.wb.core.gef.command.CompoundEditCommand.execute(CompoundEditCommand.java:45)
	at org.eclipse.wb.internal.gef.core.EditDomain.executeCommand(EditDomain.java:59)
	at org.eclipse.wb.internal.core.gef.policy.layout.absolute.KeyboardMovingLayoutEditPolicy$1$1.run(KeyboardMovingLayoutEditPolicy.java:182)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

Let me know if you need any additional information. I can reproduce this at will.

Bernie Hunt
Comment 1 Alexander Mitin CLA 2011-11-15 13:10:12 EST 
Please provide a test case.
Comment 2 Alexander Mitin CLA 2011-11-16 12:43:57 EST 
Fixed in trunk.
Comment 3 Eric Clayberg CLA 2011-11-16 18:30:42 EST 
Fixed