This discussion is archived
5 Replies Latest reply: Dec 24, 2012 3:15 PM by dvohra21 RSS

Could not write to persistence.xml file. java.lang.NullPointerException

user550886 Newbie
Currently Being Moderated
I have installed Oracle Enterprise Pack for Eclipse 12c Release 1 on Eclipse 4.2.1.

When I try to create a JPA project at the last step when I click finish I get the error: "Could not write to persistence.xml file. java.lang.NullPointerException".

---

My project settings are as follows:

Platform: EclipseLink 2.4.x

JPA Implementation: User Library (EclipseLink 2.4.1 - Juno)

Connected to an Oracle 11.2 database.

Persistent class management: Discover annotated classes automatically

Target Runtime: jre7

Project Facets: Default Configuration for jre7

---

I have tried creating a project in a different workspace so I don't think it is a file permissions problem.

Does anyone know why I'm getting this error?

Thanks
Adam

Legend

  • Correct Answers - 10 points
  • Helpful Answers - 5 points