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TitleAreaDialog - An exception with no message. [message #1092970]

Fri, 23 August 2013 11:38

Asha Ramegowda

Messages: 77
Registered: July 2009

Member

Hi,

We are extending a TitleAreaDialog used for multiple purposes. Hence each time we create an instance of Dialog and get a composite of the parent, and draw the custom contents further.

The code is calling the creatContents method of TitleArea dialog by passing the parent composite (which is not null) onto the extended TitleAreaDialog from a different class as below to get the parent composite drawn.

Composite composite = new Composite(parent, SWT.NONE | SWT.BORDER);
composite.setLayout(new GridLayout());
createContents(composite);

But this is resulting into an NullPointer exception while running the createContents() method that displays Warning with Reason field empty!

Appreciate any help understanding what could be going wrong here.

Note: This code works perfectly fine on Eclipse 3.3. Currently we are migrating this application on to Eclipse 4.2.

Thanks.

[Updated on: Fri, 30 August 2013 09:21]

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Re: TitleAreaDialog - An exception with no message. [message #1097866 is a reply to message #1092970]

Fri, 30 August 2013 09:02

Asha Ramegowda

Messages: 77
Registered: July 2009

Member

Figured out the issue Smile

!

Somehow, the composite was not drawn properly until I introduced the create() call before calling createContents(composite).

That drawn wizard perfectly.

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