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Closing all previously opened editors at the time of Eclipse launch [message #707993]

Tue, 02 August 2011 10:13

newbie

Messages: 5
Registered: July 2011

Junior Member

Hi,

I have designed an eclipse plugin. Eclipse has a feature that if the workbench is closed with some open editors, then next time the eclipse is launched all the editors opened in the previous session. remains in the open state.
My requirement is to close all the open editors based on the previous session at the time eclipse is launched. In one of the classes of plugin designed, i added following piece of code

PlatformUI.getWorkbench().getActiveWorkbenchWindow();
IWorkbenchWindow[] windows = PlatformUI.getWorkbench().getWorkbenchWindows();
for (IWorkbenchWindow iWorkbenchWindow : windows) {
if (iWorkbenchWindow.getActivePage() != null) {
break;
}
iWorkbenchWindow.close();
}

This code is closing the editors at the time of launching. but it also throws an exception .
"Unable to read workbench state. Workbench UI layout will be reset.
java.lang.NullPointerException".

Request you to let me know where am i wrong.

Thanks

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Re: Closing all previously opened editors at the time of Eclipse launch [message #708170 is a reply to message #707993]

Tue, 02 August 2011 14:31

Eric Rizzo

Messages: 3070
Registered: July 2009

Senior Member

On 8/2/11 6:13 AM, newbie wrote:
> Hi,
> I have designed an eclipse plugin. Eclipse has a feature that if the
> workbench is closed with some open editors, then next time the eclipse
> is launched all the editors opened in the previous session. remains in
> the open state. My requirement is to close all the open editors based on
> the previous session at the time eclipse is launched. In one of the
> classes of plugin designed, i added following piece of code
>
> PlatformUI.getWorkbench().getActiveWorkbenchWindow();
> IWorkbenchWindow[] windows =
> PlatformUI.getWorkbench().getWorkbenchWindows();
> for (IWorkbenchWindow iWorkbenchWindow : windows) {
> if (iWorkbenchWindow.getActivePage() != null) {
> break;
> }
> iWorkbenchWindow.close();
> }
>
> This code is closing the editors at the time of launching. but it also
> throws an exception . "Unable to read workbench state. Workbench UI
> layout will be reset.
> java.lang.NullPointerException".
> Request you to let me know where am i wrong.

The stack trace of that exception and the debugger are your best
friends; use them. If you run into a brick wall with that, try posting
details in the Platform forum group; this isn't really a "newcomers" topic.

Eric

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