Problem invoking EJB web service from Java

The project has a BPEL project calling embedded Java class and that Java class is invoking EJB WS(Java based).
The whole project has been developed in Jdeveloper. There is a dependency set between BPEL project and the EJB project.
The EJB WS has been deployed in the machine where BPEL server is running.
When I am running the java(embedded in BPEL project) manually in Jdeveloper then it is callig the EJB WS without any issue.
But when the BPEL is invoking the same Java and which in turn is invoking the EJB WS then it is giving this error in the BPEL Audit file :
<runtimeFault xmlns="http://schemas.oracle.com/bpel/extension">
- <part name="code">
<code>
java.lang.NoClassDefFoundError
</code>
</part>
- <part name="summary">
<summary>
com/formfactor/it/promis/PromisLinkWSSoapHttpPortClient
</summary>
</part>
- <part name="detail">
<detail>
[Ljava.lang.StackTraceElement;@1cde909
</detail>
</part>
</runtimeFault
Note: com/formfactor/it/promis/PromisLinkWSSoapHttpPortClient is the WS end-point.
To try out I have put EjbWebServices.jar , which has PromisLinkWSSoapHttpPortClient.class, in <SOA_HOME>/bpel/system/classes . But it did not help.
Can you please let me know what else has to be done?

Hi,
Can anyone help me with this ??
I guess I am not able to send the authorization credentials via the request to the web service invocation.
Plz help ! This is a bit urgent..
Regards,
Shiva Kiran

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Hi,
Can anyone help me with this ??
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Plz help ! This is a bit urgent..
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