Eclipse does not recognize content of persistence.xml

Question

Im getting the following error in eclipse:

The persistence.xml file does not have recognized content.

My persistence.xml file works great in my application but e

Answer 1

The bug has reappeared for certain Indigo (3.7) versions. See here: https://bugs.eclipse.org/bugs/show_bug.cgi?id=357810

Right-click project -> Maven -> Update Project Configuration...

This might destroy certain buildpath entries and/or the deployment assembly, very annoying, so only do this when changing Maven deps.

To workaround the persistence.xml message until the patch is released, you need to clean the project on many operations as even setting the error level to "ignore" doesn't work. This is a complete bummer.