5540 – Exception moving classes to another package

Bug 5540 - Exception moving classes to another package

Summary: Exception moving classes to another package

Status:	RESOLVED FIXED

Alias:	None

Product:	JDT
Classification:	Eclipse Project
Component:	UI (show other bugs)
Version:	1.0
Hardware:	PC Windows 2000

Importance:	P1 normal (vote)
Target Milestone:	---
Assignee:	Martin Aeschlimann
QA Contact:

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2001-11-05 12:03 EST by James Moody
Modified:	2001-11-12 10:52 EST (History)
CC List:	0 users

See Also:

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Description James Moody

2001-11-05 12:03:49 EST

I selected a number (10?) of .java files in the packages view. Right-click, 
Move, select the new package, press OK. I got three error dialogs and the 
following stack.

4 org.eclipse.ui 0 Failed to execute runnable (java.lang.NullPointerException)
org.eclipse.swt.SWTException: Failed to execute runnable 
(java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:1846)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:710)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.jdt.core 969 UpdateAction.java does not exist.
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.core.runtime 0 Unhandled exception caught in event loop.
org.eclipse.swt.SWTException: Failed to execute runnable 
(java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:1846)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.ui.internal.Workbench.handleExceptionInEventLoop
(Workbench.java:373)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:710)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.core.runtime 0 Failed to execute runnable 
(java.lang.NullPointerException)
org.eclipse.swt.SWTException: Failed to execute runnable 
(java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:1846)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.ui.internal.Workbench.handleExceptionInEventLoop
(Workbench.java:373)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:710)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.jdt.core 969 UpdateAction.java does not exist.
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.core.runtime 0 Unhandled exception caught in event loop.
org.eclipse.swt.SWTException: Failed to execute runnable 
(java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:1846)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.jface.window.Window.handleExceptionInEventLoop
(Window.java:436)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.ui.internal.Workbench.handleExceptionInEventLoop
(Workbench.java:373)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:710)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
Log: Mon Nov 05 12:03:23 EST 2001
4 org.eclipse.core.runtime 0 Failed to execute runnable 
(java.lang.NullPointerException)
org.eclipse.swt.SWTException: Failed to execute runnable 
(java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:1846)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.jface.window.Window.handleExceptionInEventLoop
(Window.java:436)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java(Compiled 
Code))
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.jface.dialogs.MessageDialog.openError
(MessageDialog.java:318)
	at org.eclipse.ui.internal.Workbench.handleExceptionInEventLoop
(Workbench.java:373)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:710)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
Log: Mon Nov 05 12:03:24 EST 2001
4 org.eclipse.jdt.core 969 UpdateAction.java does not exist.

Comment 1 Erich Gamma

2001-11-05 12:30:02 EST

The precise steps are:
1) open type hierarchy on TestCase
2) switch to super type view
3) move the class Test in the packages view

For build 208 a workaround was put it, i.e., the input of the hierarchy is 
cleared when the hierarchy is null.

This isn't the correct fix.

Comment 2 Martin Aeschlimann

2001-11-12 10:52:02 EST

fix is ok.
We would need the Java element deltas to report the move of a type. Currently 
only available for CU's, but not for types.