Connect EJB from other client to Weblogic

Please include following JAR file:
Creating a wlfullclient.jar for JDK 1.6 client applications
Use the following steps to create a wlfullclient.jar file for a JDK 1.6 client application:

Change directories to the server/lib directory.
cd WL_HOME/server/lib
Use the following command to create wlfullclient.jar in the server/lib directory:
java -jar wljarbuilder.jar
You can now copy and bundle the wlfullclient.jar with client applications.
Add the wlfullclient.jar to the client application’s classpath.

Creating a wlfullclient5.jar for JDK 1.5 client applications
Change directories to the server/lib directory.
cd WL_HOME/server/lib
Use the following command to create wlfullclient.jar in the server/lib directory:
java -jar wljarbuilder.jar -profile wlfullclient5
You can now copy and bundle the wlfullclient5.jar with client applications.
Add the wlfullclient5.jar to the client application’s classpath..
(REMEMBER: USE JDK1.5 to generate the jar file)

Refer from http://download.oracle.com/docs/cd/E12840_01/wls/docs103/client/jarbuilder.html#wp1077742