Eclipse 3.3 (Europa) for J2EE developers

The new release of Eclipse has been out for a couple of days. The changes included in the release look great!

However, the default install comes with an error in the configuration which will prevent the installation of new plug-ins through the update manager.

The message I’m seeing is:

Java Persistence API Tools (1.0.0.v200706250000-77–CYQCCz-CoRPCCCH) requires feature “org.eclipse.datatools.enablement.feature”.

To fix that, go to the update manager and grab from the Europa Discovery Site the features:

  • Database Development / Data Tools Platform Documentation
  • Database Development / Data Tools Platform Enablement

I’m clueless about why the documentation is needed to resolve this issue but…

Once these features are checked, the error message will disappear and you will be free to install whichever plugins you’d like.

I’m a bit surprised by the small number of results I’ve got when googling for the error message: two! Credit for the solution goes to Bradley Wagner and the great folks at Nabble.


  1. Ari Meyer

    Thank you very much for this post! I, too, am surprised by how few results come up from googling this problem. For newbies, here are more explicit details about how to get this fix:

    Help->Software Updates->Find and Install
    select “Search for new features to install”, Next
    select “Europa Discovery Site”, Finish

    Then select (at least):
    * Database Development / Data Tools Platform Documentation
    * Database Development / Data Tools Platform Enablement

    Best,
    Ari

  2. Varada

    Hi,

    Whats the difference in J2EE europa and WTP2.0? Will a “all in one” WTP 2.0 download is enough? If you have any info please share it.

  3. @Varada: Europa is the name of the Eclipse 3.3 simultaneous release, which includes WTP 2.0. In principle, WTP 2.0 “all-in-one” is enough for running Candy.

  4. Buzz Man

    Thanks for your help, this has solved a long running problem for me too! In fact, I had to select most of the Database Tools, not just the 2 mentioned above, before the Finish button became active again and I was able to continue with the updates. Thanks again!

  5. HiPy

    I had the same problem or message error when i try to install the jbpm 4.1. Anybody can help me? thnks.






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