NullPointerException in create new Diagram dialog

Description

When trying to create a new diagram with the new diagram wizard, the next button does not work.
On the console, I see the following exception:

java.lang.NullPointerException
at org.activiti.designer.eclipse.ui.wizard.diagram.CreateDefaultActivitiDiagramWizard.getDiagramFile(CreateDefaultActivitiDiagramWizard.java:61)
at org.activiti.designer.eclipse.ui.wizard.diagram.CreateDefaultActivitiDiagramWizard.canCreateDiagramFile(CreateDefaultActivitiDiagramWizard.java:46)
at org.activiti.designer.eclipse.ui.wizard.diagram.CreateDefaultActivitiDiagramWizard.canFinish(CreateDefaultActivitiDiagramWizard.java:42)
at org.eclipse.jface.wizard.WizardDialog.updateButtons(WizardDialog.java:1344)

Environment

STS 2.9.2 (i.e. 3.7.2)
eclipse 3.8.1

Assignee

Tijs Rademakers

Reporter

Heinz-Dieter Conradi

Labels

None

Components

Fix versions

Affects versions

Priority

Major
Configure