RESTEASY -Spring Exception mapper for javax.ws.rs.NotFoundException is not getting Involed - spring

Question

Hi I am using Reasteasy 3 along spring 3.
I have defined multiple Exception mappers for my project, and most of them are getting invoked whenever concerned Exceptions are raised.
But I am facing problem with **“javax.ws.rs.NotFoundException” when this exception is raised its handler is not getting invoked.**
All Exception mappers including mapper for “NotFoundException” exception are defined/configured in same manner and they are getting invoked except mapper for NotFoundException.
Is there any different way to configure Exception mappers for JAX-RS exception ..please help I am stuck here .
code for Exception mappers
package com.xyz.exception;
import javax.ws.rs.NotFoundException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
#Provider
public class CCDBNotFoundExceptionMapper implements ExceptionMapper<NotFoundException> {
#Override
public Response toResponse(NotFoundException e) {
// Logs and code
}
}
other Exception mapper configured and defined in a Excatly similar way are getting Invoked ... see snap shot for working Exception mapper
package com.xyz.exception;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import org.jboss.resteasy.plugins.providers.jaxb.JAXBUnmarshalException;
#Provider
public class CCDBJAXBUnmarshalExceptionMapper implements ExceptionMapper<JAXBUnmarshalException> {
#Override
public Response toResponse(NotFoundException e) {
// Logs and code
}
}
package com.xyz.exception;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
#Provider
public class CCDBApplicationExceptionMapper implements ExceptionMapper<CCDBApplicationException>{
#Override
public Response toResponse(NotFoundException e) {
// Logs and code
}
}
Spring Configuration for provider annotation
<!-- Auto Reegistry of RESTEasy providers -->
<context:component-scan base-package="com.xyz">
<context:include-filter type="annotation" expression="javax.ws.rs.ext.Provider"/>
</context:component-scan>

Answer 1

I tried everything but Exception mappers for any "javax.ws.rs.*" exceptions are not getting invokes although they are getting registered .
to overcome this problem i have used servlet filter ... i posting my code to help others whoever is facing same issues
Register below filter in your web.xml file.
filter code :
public class CCDBExceptionFilter implements Filter {
Logger logger = Logger.getLogger(CCDBExceptionFilter.class);
private static final String NOTFOUND_MESSAGE = "{\"ErrorResponse\":{\"errorCode\":1,\"errorMessage\":\"Invalid request, There is no service configured to handle provided request\"}}";
public void init(FilterConfig filterConfig) throws ServletException {
logger.debug("CCDBExceptionFilter got initiated" );
}
public void doFilter(ServletRequest request, ServletResponse response,FilterChain filterChain)throws IOException, ServletException {
HttpServletResponse res = (HttpServletResponse) response;
HttpServletRequest req = (HttpServletRequest) request;
logger.debug("Request recived to process " + req.getPathInfo());
DummyResponse dummyResponse = new DummyResponse((HttpServletResponse)response);
filterChain.doFilter(request, dummyResponse);
logger.debug("Request handled for " + req.getPathInfo());
if(404 == dummyResponse.getErrorcode()){
logger.debug("Found 404 error code" );
res.setStatus(400);
PrintWriter out = response.getWriter();
out.println(NOTFOUND_MESSAGE);
out.close();
}
}
public void destroy() {
}
}
Dummy Response class
public class DummyResponse extends HttpServletResponseWrapper {
Logger logger = Logger.getLogger(DummyResponse.class);
private CharArrayWriter buffer; // This can be used as an Writer
int errorcode;
public int getErrorcode() {
return errorcode;
}
public void setErrorcode(int errorcode) {
this.errorcode = errorcode;
}
public DummyResponse(HttpServletResponse response) {
super(response);
buffer = new CharArrayWriter();
}
public String toString() {
return buffer.toString();
}
public PrintWriter getWriter() {
return new PrintWriter(buffer);
}
public void setStatus(int sc) {
if (404 == sc) {
setErrorcode(404);
super.setStatus(400);
} else {
super.setStatus(sc);
}
}
public void sendError(int sc, String msg) throws IOException {
if (404 == sc) {
setErrorcode(404);
super.setStatus(400);
} else {
super.setStatus(sc);
}
}
public void sendError(int sc) throws IOException {
if (404 == sc) {
setErrorcode(404);
super.setStatus(400);
} else {
super.setStatus(sc);
}
}
}