[news.eclipse.tools.emf] Common Navigator + EMF + Properties View

[Ömer Yildiz <oemer.yildiz@xxxxxxxxxxxxxxxx>]

Hi,

I want the user to be able to modify properties of model objects, which 
are shown in the Project Explorer using the Common Navigator Framework. 
The Properties View displays their properties, but modifing a particular 
type of property does not work. When the user tries to modify a 
property, which is defined as a multi-line String in the genmodel and it 
already contains a string, he's getting this exception:

java.lang.ClassCastException: 
org.eclipse.emf.edit.provider.ItemPropertyDescriptor$PropertyValueWrapper 
cannot be cast to java.lang.String
	at 
org.eclipse.emf.ecore.impl.EcoreFactoryImpl.convertEStringToString(EcoreFactoryImpl.java:654)
	at 
org.eclipse.emf.ecore.impl.EcoreFactoryImpl.convertToString(EcoreFactoryImpl.java:224)
	at 
org.eclipse.emf.ecore.util.EcoreUtil.convertToString(EcoreUtil.java:3112)
	at 
org.eclipse.emf.edit.ui.provider.PropertyDescriptor$EDataTypeValueHandler.toString(PropertyDescriptor.java:199)
	at 
org.eclipse.emf.edit.ui.provider.PropertyDescriptor$2.openDialogBox(PropertyDescriptor.java:293)
	at 
org.eclipse.jface.viewers.DialogCellEditor$2.widgetSelected(DialogCellEditor.java:244)
...


Any hints to fix this issue?

Best regards,
Ömer Yildiz