Unhandled event loop exception occurs in new jsf portlet on maven jsf project

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0 M1
• Fix Version/s: 3.0 M1
• Component/s: Wizards, Wizards > JSF
• Labels: None
• Git Pull Request: https://github.com/gamerson/liferay-ide/pull/1067

let's say the there is an plugins-sdk open now

1. new liferay maven proejct & checked "Launch New Portlet Wizard after project is created"
2. Next > choose JSF 2.x > ICEfaces > Finish
3. Click "Next" in the popup "New Liferay JSF portlet" wizard > Next > back > Next

if the error doesn't show up, then try to change to a different template like ICEfaces then do Next > Back a few times

Error stacks:

java.lang.NullPointerException
at com.liferay.ide.portlet.core.operation.NewPortletClassDataModelProvider.findExistingCategory(NewPortletClassDataModelProvider.java:782)
at com.liferay.ide.portlet.core.operation.NewPortletClassDataModelProvider.getCategories(NewPortletClassDataModelProvider.java:186)
at com.liferay.ide.portlet.core.operation.NewPortletClassDataModelProvider.getValidPropertyDescriptors(NewPortletClassDataModelProvider.java:731)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelImpl.getValidPropertyDescriptors(DataModelImpl.java:320)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelSynchHelper.setWidgetValue(DataModelSynchHelper.java:313)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelSynchHelper.doSynchUIWithModel(DataModelSynchHelper.java:237)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelSynchHelper.synchUIWithModel(DataModelSynchHelper.java:210)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelSynchHelper.synchComposite(DataModelSynchHelper.java:452)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelSynchHelper.synchCombo(DataModelSynchHelper.java:489)
at com.liferay.ide.portlet.ui.wizard.NewLiferayPortletWizardPage.createLiferayDisplayGroup(NewLiferayPortletWizardPage.java:96)
at com.liferay.ide.portlet.ui.wizard.NewLiferayPortletWizardPage.createTopLevelComposite(NewLiferayPortletWizardPage.java:298)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizardPage.createControl(DataModelWizardPage.java:100)