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eclipsejpafacet
Strinder
Strinder

Reputation: 2240

JPA Facet cannot be activated in Eclipse

If I try to activate the "JPA Facet" for my Eclipse (Juno) project and point it to a user library containing the JPA libraries (in my case OpenJPA) I get the error:

"The class 'javax.persistence.Entity' is required to be in the selected libraries."

But this class is present there!

Upvotes: 3

Views: 11173

Answers (3)

baronKarza
baronKarza

Reputation: 523

I'm using Spring Tool Suite (STS). The problem I was facing is that in the default installation the M2E-WTP plugin does not include the Optional component "m2e-wtp - JPA Configurator for WTP". So I went to Help -> Eclipse Marketplace... and searched "m2e-wtp".

enter image description here

Click on the Installed button and it will become Change. Click on the Change button and select the optional component "m2e-wtp - JPA Configurator for WTP". Apply changes.

This solved for me.

Upvotes: 1

Golan Hershko
Golan Hershko

Reputation: 26

Just create a user library that contains the javax.persistence... JAR in it (It is located in Eclipse/plugins) and add this library at "JPA Implementation"

Upvotes: 1

Strinder
Strinder

Reputation: 2240

"Solution": The JPA libraries were contained in an Eclipse project folder. If I copy it somewhere outside and create another user library with them it works perfectly (although it has exactly the same content as the one before with the libraries located in the Eclipse project!). Seems like an Eclipse bug...

Upvotes: 4

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