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How to set the order of jars in Weblogic EAR?

I have an EAR file that contains two different jars that share some classes with the same package + class name. This makes it important to load classes within the EAR file itself.

How can I tell Weblogic to load one jar from APP-INF / lib before loading another to the same APP-INF / lib? I need to define a specific order for this, if there is a conflict, it will take from JAR a, not JAR b.

I am using Webogic 11g (10.3).

Thank.

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The top-level element in weblogic-application.xml

has an optional member of the loadload class structure, which you probably want to look into. For example, you can do something like:

   <classloader-structure> 
     <module-ref> 
       <module-uri>ejb1.jar</module-uri> 
     </module-ref>
     <module-ref> 
       <module-uri>web3.war</module-uri> 
     </module-ref>

     <classloader-structure> 
        <module-ref> 
           <module-uri>web1.war</module-uri> 
        </module-ref> 
     </classloader-structure>

   </classloader-structure>


Learn more about declaring a custom class to load in the Oracle docs . You can also find the Class Loader Analysis Tool (CAT) in the same link.

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