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A Java EE library is a stand-alone EJB or Web application module, multiple EJB or Web application modules packaged in an Enterprise application (EAR), or a single plain JAR file that is registered with the Java EE application container upon deployment. After the library has been installed and started, other deployed modules can reference the library.
The following procedure describes how to update the configuration of an already-installed Java EE library.
A table that lists all the deployments currently installed to
          WebLogic Server appears in the right pane. Java EE libraries are
          specified by the Library entry in the Type
          column.
The name of the Java EE library is always followed by a version
          of the form
          (Specification@Implementation), where
          Specification identifies the version number
          of the specification (for example, the Java EE specification
          version) to which a library or package conforms and
          Implementation Identifies the version number
          of the actual code implementation for the library or package. This
          versioning of Java EE libraries enables referencing applications to
          specify a required minimum version of the library to use, or an
          exact, required version.
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