Weblogic Classloading configuration

Weblogic Server classloading manual
http://e-docs.bea.com/wls/docs103/programming/classloading.html

WebLogic Server provides a location within an EAR file where you can store shared utility classes. Place utility JAR files in the APP-INF/lib directory and individual classes in the APP-INF/classes directory.

• Create test library to print classloader of class

System.out.println(clazz.getSimpleName() + " loaded by " + clazz.getClassLoader().getClass().getSimpleName());

• Add test library into Web Project
  

• Add library into EAR

• Deploy with prefer-web-inf-classes = true

TestClassloader loaded by ChangeAwareClassLoader
TestServlet loaded by ChangeAwareClassLoader
TestClassloader loaded by GenericClassLoader TestSessionBean_eb2d8g_Impl loaded by GenericClassLoader

• Deploy with prefer-web-inf-classes = false ( default)

TestClassloader loaded by GenericClassLoader TestServlet loaded by ChangeAwareClassLoader TestClassloader loaded by GenericClassLoader TestSessionBean_eb2d8g_Impl loaded by GenericClassLoader

Create JavaEE application using Eclipse Ganymede and Weblogic 10.3

• Download Oracle Weblogic Server 10.3 from http://www.oracle.com/technology/software/products/ias/index.html
  

• Download latest Eclipse Java EE IDE from http://www.eclipse.org/downloads/

• Eclipse IDE help http://help.eclipse.org/ganymede/index.jsp
  

• Add support for Oracle Weblogic 10.3 Server from http://download.oracle.com/otn_software/oepe/ganymede

• Add WLS 10.3 as new server

• Follow this tutorial http://cwiki.apache.org/GMOxSAMPLES/5-minute-tutorial-on-enterprise-application-development-with-eclipse-and-geronimo.html to create new Enteprise Application, EJB module, Dynamic Web module

• Create new Enterprise Application Project. http://help.eclipse.org/ganymede/index.jsp?topic=/org.eclipse.jst.j2ee.doc.user/topics/tjear.html
  

• Create new EJB project
  

• Create new Dynamic Web Project

• Run EAR project on WLS server

• Check deployed project on WLS console http://localhost:7001/console/