getRenderedStartForm() and getRenderedTaskForm() return null

[lburmeister]

Hi,
I'm the progress of developing an application based upon Activiti. I'm able to deploy the example processes in activiti-engine-examples.bar and the forms are saved into ACT_GE_BYTEARRAY. The NAME_ column shows the correct names equal to activiti:formKey in the process definition. But when I try to retrieve a form with getFormService().getRenderedStartForm(pid) or getFormService.getRenderedTaskForm(taskId) the result is always "null". Can you please give me hint what can I do to find my mistake?

Thank,
lburmeister

[jbarrez]

Does the get taskFormKey() method returns the correct value?