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Struts 13.8 + Exception Handeling Problem

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I am using exception handeling framework of Struts 1.3.8. I have made few command and commands are throwing exceptions if certain validation fails on request. As per the Struts 1.3.8 chainConfig.xml, ExceptionCatcher Command will catch the exception and will execute the ExceptionHandler command. If there is not any exception in the execution of ExceptionHandler command, then this flow is fine but if there is any exception then this flow creates problem.

Below source code was taken from Struts and Apache commons site.

Please refer below code from ChainBase.java (org.apache.commons.chain.impl).

Requirement - If there is any exception in the postprocess...then I want to render another page. I figured out that postprocess was throwing servletexception and I configured a different page in struts-config.xml but it did not work.

Can somebody advice any possible solution to the problem.
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