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Invalid Thread Access [message #114555]

Fri, 05 December 2008 13:01

Andrej Dimic

Messages: 77
Registered: July 2009

Member

Hi

may it be that there is a problem in RAP when a Shell-Windows is disposed
and there are disabled controls?
I used the Fileupload-Widget from the Sandbox along with the Demo-class
which i modified so that it fited my needs. When closing the window
shell.dispose() is called and afterwards, i get a "Invalid Thread Access"
if the controls were disabled.
So i do a updateEnabled() with "enabled" Flag to true before
shell.dispose() and the crash goes away.

I guess it could be a generic problem because i get "Invalid Thread
Access" from time to time in a situation that resembles the case above:
there is a Logon Winodw and when the Window is closed toolbar and menu
items are enabled / disabled. There also, i get "Invalid Thread Access".
But unfortunatly, not every time.

Thanks
Andrej

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Re: Invalid Thread Access [message #114641 is a reply to message #114555]

Fri, 05 December 2008 17:18

Andrej Dimic

Messages: 77
Registered: July 2009

Member

This is the Stack Trace i get:

org.eclipse.swt.SWTException: Invalid thread access
org.eclipse.swt.SWT.error(SWT.java:1757)
org.eclipse.swt.SWT.error(SWT.java:1677)
org.eclipse.swt.SWT.error(SWT.java:1648)
org.eclipse.swt.widgets.Widget.error(Widget.java:775)
org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:718)
org.eclipse.swt.widgets.Composite.getChildren(Composite.java :107)
org.eclipse.swt.internal.widgets.WidgetTreeVisitor.accept(Wi dgetTreeVisitor.java:49)
org.eclipse.rwt.lifecycle.WidgetUtil.find(WidgetUtil.java:19 7)
org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.readF ocusControl(DisplayLCA.java:566)
org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.readD ata(DisplayLCA.java:337)
org.eclipse.rwt.internal.lifecycle.ReadData.execute(ReadData .java:26)
org.eclipse.rwt.internal.lifecycle.RWTLifeCycle.continueLife Cycle(RWTLifeCycle.java:206)
org.eclipse.rwt.internal.lifecycle.RWTLifeCycle$UIThreadCont roller.run(RWTLifeCycle.java:115)
java.lang.Thread.run(Thread.java:619)

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Re: Invalid Thread Access [message #114752 is a reply to message #114641]

Mon, 08 December 2008 08:45

Stefan

Messages: 316
Registered: July 2009

Senior Member

Hi,

looks like a bug. Could you file a bug report with a snippet?

Thanks,
Stefan.

adiinfo schrieb:
> This is the Stack Trace i get:
>
> org.eclipse.swt.SWTException: Invalid thread access
> org.eclipse.swt.SWT.error(SWT.java:1757)
> org.eclipse.swt.SWT.error(SWT.java:1677)
> org.eclipse.swt.SWT.error(SWT.java:1648)
> org.eclipse.swt.widgets.Widget.error(Widget.java:775)
> org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:718)
> org.eclipse.swt.widgets.Composite.getChildren(Composite.java :107)
> org.eclipse.swt.internal.widgets.WidgetTreeVisitor.accept(Wi dgetTreeVisitor.java:49)
>
> org.eclipse.rwt.lifecycle.WidgetUtil.find(WidgetUtil.java:19 7)
> org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.readF ocusControl(DisplayLCA.java:566)
>
> org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.readD ata(DisplayLCA.java:337)
>
> org.eclipse.rwt.internal.lifecycle.ReadData.execute(ReadData .java:26)
> org.eclipse.rwt.internal.lifecycle.RWTLifeCycle.continueLife Cycle(RWTLifeCycle.java:206)
>
> org.eclipse.rwt.internal.lifecycle.RWTLifeCycle$UIThreadCont roller.run(RWTLifeCycle.java:115)
>
> java.lang.Thread.run(Thread.java:619)
>

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