Exception in a JPA application with multiple persistence units

Question

I have multiple persistence units in a JPA application I developed. 

I'm getting the following exception javax.annotation.processing.FilerException: Attempt to recreate a file for type ...

Any ideas?

Answer 1

If you have more than one JPA persistence unit defined in your persistence.xml file, you need to set

 

<exclude-unlisted-classes>false</exclude-unlisted-classes>

 

to:

<exclude-unlisted-classes>true</exclude-unlisted-classes>

and then list every entity class with a mapping definition for each.

Is this the case with your configuration?