AEM Developer Tools Could not process archetype: null

### Expected Behaviour
I have Eclipse Luna Release 4.4 with the AEM Developer Tools plugin. When I select File – New – Project and try to create an AEM Sample Multi-Module Project, I expect the Wizard to work.

### Actual Behaviour
When I select File – New – Project and try to create an AEM Sample Multi-Module Project, the following error occurs.
java.lang.RuntimeException: Could not process archetype: null

Caused by: java.lang.NullPointerException at com.adobe.granite.ide.eclipse.ui.wizards.np.AdvancedSettingsComponent.initialize(AdvancedSettingsComponent.java:270)

### Reproduce Scenario (including but not limited to)
Install Eclipse Luna Release 4.4 and the AEM Developer Tools plugin
#### Steps to Reproduce
1. Select File – New – Project.
2. Expand the AEM category.
3. Select the AEM Sample Multi-Module Project and click Next.
4. Click the Archetype drop-down and select com.adobe.granite.archetypes : aem-project-archetype:15.
5. Click Next.

#### Platform and Version
Windows with Eclipse Luna Release 4.4 and the AEM Developer Tools plugin
#### Sample Code that illustrates the problem
N/A
#### Logs taken while reproducing problem
java.lang.RuntimeException: Could not process archetype: null
at com.adobe.granite.ide.eclipse.ui.wizards.np.AdvancedSettingsComponent.initialize(AdvancedSettingsComponent.java:276)
at com.adobe.granite.ide.eclipse.ui.wizards.np.SimplerParametersWizardPage.setVisible(SimplerParametersWizardPage.java:160)
at org.eclipse.jface.wizard.WizardDialog.updateForPage(WizardDialog.java:1289)
at org.eclipse.jface.wizard.WizardDialog.access$4(WizardDialog.java:1268)
at org.eclipse.jface.wizard.WizardDialog$8.run(WizardDialog.java:1257)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.wizard.WizardDialog.showPage(WizardDialog.java:1254)
at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:942)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:434)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:832)
at org.eclipse.jface.window.Window.open(Window.java:808)
at org.eclipse.ui.actions.NewProjectAction.run(NewProjectAction.java:117)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:519)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Caused by: java.lang.NullPointerException
at com.adobe.granite.ide.eclipse.ui.wizards.np.AdvancedSettingsComponent.initialize(AdvancedSettingsComponent.java:270)
... 48 more

Reproduce the failure in Eclipse Luna 4.4 using the AEM Sample Multi-Module Project and archetype com.adobe.granite.archetypes:aem-project-archetype:15. Start at AdvancedSettingsComponent.initialize, especially lines 270-276, using the reported stack trace. Done means the wizard proceeds past the archetype selection without the RuntimeException or NullPointerException.

Written by the indexing model from the issue text.