Use Java With BPEL

Hi All,
I'm using bpel version 10.1.3.3.
I've created many classes inside the process, and imported JAR files as well.
So now I have in the "Application Sources" directory all the classes I need (java files inside packages), and the JARS I've imported by: enter the project properties-Libraries-Add Jar/Directory.
I'm using a Java Embadding activity to initiate all the code.
The project compiled and deployed.
My problem is that when I get to the first class that I need to use (by import) one of the jars I'm getting en error (I can see it only in the activity flow and not in the server log - I set it to debug):
<runtimeFault xmlns="http://schemas.oracle.com/bpel/extension">
<part name="code"><code>java.lang.NoSuchMethodError</code>
</part>
<part name="summary"><summary>org.apache.commons.lang.ArrayUtils.contains([CC)Z</summary>
</part><part name="detail"><detail>[Ljava.lang.StackTraceElement;@85dc5a</detail>
</part></runtimeFault>
The strange thing is that the class I'm getting the error in ,uses torque.jar and not commons-lang-2.1.jar (the ArrayUtils locate there). I'm using the commons-lang-2.1.jar but for other classes.
I tried the add the classpath by configure files:obsetenv.sh/domain.xml/application.xml with no success.
I can see the jar files in BPEL-INF on the server.
Any help???

try adding the required jar files in server.xml just before orabpel.jar entry.

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