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Weblogic - JavaEE 6 migration to JavaEE 7

Weblogic migration to 12.2.x 

There are significant changes done between JEE 6 and JEE 7. Weblogic 12.2.x uses JEE 7 and applications need to migrate the weblogic related configurations along with JEE API version.

In JEE7 many ejb and weblogic related schemas has been changed which I have listed down here. Required schema declaration for all related configurations are as given below.

  • weblogic-ejb-jar.xml

     <weblogic-ejb-jar xmlns="http://xmlns.oracle.com/weblogic/weblogic-ejb-jar"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-ejb-jar http://xmlns.oracle.com/weblogic/weblogic-ejb-jar/1.7/weblogic-ejb-jar.xsd">

  • ejb-jar.xml

    <ejb-jar xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/ejb-jar_3_2.xsd"
version="3.2">

  • persistence.xml

    <persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd" version="2.2">

  • beans.xml

    If this file is not present then you can create an empty file having below schema declaration in META-INF or WEB-INF folder of your application. It is used by CDI for beans injection and management.

    <beans xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd" 
version="1.1" bean-discovery-mode="all">

  • weblogic.xml

    <weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd
http://xmlns.oracle.com/weblogic/weblogic-web-app http://xmlns.oracle.com/weblogic/weblogic-web-app/1.9/weblogic-web-app.xsd">

  • web.xml

    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" vrsion="3.1">

  • weblogic-application.xml

    <weblogic-application xmlns="http://xmlns.oracle.com/weblogic/weblogic-application"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-application http://xmlns.oracle.com/weblogic/weblogic-application/1.8/weblogic-application.xsd">

  • application.xml

    <application id="Application_ID" 
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/application_7.xsd" vrsion="7">

Apart from above there could be some more changes specific to your application. For example, openejb, javaee, ejb, weblogic Jar dependencies. These you need to figure out in your application and need to upgrade accordingly.

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