Camunda plugin activation in Eclipse RCP product eliminates common eclipse functionality

Hi, i have an eclipse rcp product and i have included the codebase of the camunda plugin in the product. If i programmatically activate the camunda bundle, when i start my eclipse product it does not prompt for workspace, just like eclipse does, only if i open it from cmd with product.exe -clean. The reason why i want to activate camunda just after the product has started is because i have sirius based editor and if the plugin for the editor is activated before the camunda i get a NPE in ModelPackageImpl at line 389 where the Bpmn2Package gets initialized.