JSF: PrimeFaces: JPA: Multiple Persistence Units


When using multiple JPA persistent units inside the file persistence.xml you can run into troubles when your entities have the same name. A exception message such a follow is an indicator of that there is a problem: “javax.annotation.processing.FilterException: Attempt to recreate a file …”



Set the following property from




NetBeans 7.4: Exception: com.sun.faces.config.ConfigureListener


NetBeans 7.4 display an exception, send by Tomcat, that cannot be solved by just stopping Tomcat, cleaning and building the project. This issue happens because NetBeans keeps uploading a previous version of the project from its cache which is not being updated.

Solution For Windows Users

  1. On NetBeans
    1. Stop Tomcat
    2. Clean your project
    3. Exit NetBeans
  2. Go to “C:\Users\[USERNAME]\AppData\Local\NetBeans” (where USERNAME is your windows login username)
  3. Delete folder “Cache”
  4. Open NetBeans again. Build and test your project on the browser.

Protected: ColdFusion : Error Handling – Part 2

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