Here is my situation involving JSF and ME 5.5.1GA:
1. We have a JSF project which was not created with ME. When we look at the *.faces file, the JSF Designer throws and exception about the content within the file.
2. What I have done is stepped back and created a new Web project and added the JSF capability to it. I have dropped the *.faces file into the new project and the tool is still getting an error.
Here is the stacktrace from the tool:
java.lang.NullPointerException
at com.genuitec.eclipse.webdesigner3.src.SourceEditSystem.getSourceDocument(SourceEditSystem.java:233)
at com.genuitec.eclipse.webdesigner3.design.DesignEditSystem.synchronize(DesignEditSystem.java:164)
When I go and check what editors I have associated with this type of file extension, there are none. Next, I associate the file with the following editors:
MyEclipse Visual JSF Designer (default)
MyEclipse Visual JSF Designer
but I still was getting the errors.
What I learned was the content types (*.jsf, *.faces) were not set with under the JSP content types.
Windows->Preferences->General->Content Types->Text->JSP->JSF Page
I hope this helps others!
Cheers[/list]