MyExceptionHandlerFactory.java

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package com.sun.faces.test.servlet30.viewRootPhaseListenerNoContextParam;

import javax.faces.context.ExceptionHandler;
import javax.faces.context.ExceptionHandlerFactory;

/**
 *
 * @author frederick.kaempfer
 */
public class MyExceptionHandlerFactory extends ExceptionHandlerFactory {

    private ExceptionHandlerFactory parent;

    public MyExceptionHandlerFactory(ExceptionHandlerFactory parent) {
        this.parent = parent;
    }

    @Override
    public ExceptionHandler getExceptionHandler() {
        ExceptionHandler result = parent.getExceptionHandler();
        result = new MyExceptionHandler(result);

        return result;
    }
}