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https://issues.apache.org/jira/browse/CXF-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Florian Diebold resolved CXF-6929.
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Resolution: Not A Bug
> Request hangs when using JAX-RS AsyncResponse and Exception mapper
> ------------------------------------------------------------------
>
> Key: CXF-6929
> URL: https://issues.apache.org/jira/browse/CXF-6929
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 3.1.1, 3.1.6
> Reporter: Florian Diebold
>
> I have a JAX-RS resource which takes an AsyncResponse, but immediately throws
> an exception before returning from the function. If the exception is then
> mapped by an ExceptionMapper, the response seems to be never sent, and the
> request hangs (stays suspended forever). Am I doing something wrong?
> Example code:
> {code}
> import javax.ws.rs.GET;
> import javax.ws.rs.Path;
> import javax.ws.rs.Produces;
> import javax.ws.rs.container.AsyncResponse;
> import javax.ws.rs.container.Suspended;
> import javax.ws.rs.core.Response;
> import javax.ws.rs.ext.ExceptionMapper;
> import org.apache.commons.lang.NotImplementedException;
> import org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet;
> import org.eclipse.jetty.server.Connector;
> import org.eclipse.jetty.server.Server;
> import org.eclipse.jetty.server.ServerConnector;
> import org.eclipse.jetty.servlet.ServletContextHandler;
> import org.eclipse.jetty.servlet.ServletHolder;
> public class ServerDemo2 {
> public static void main( final String[] args ) throws Exception {
> final Server server = new Server();
> final ServerConnector connector = new ServerConnector( server );
> connector.setHost( "localhost" );
> connector.setPort( 8888 );
> server.setConnectors( new Connector[] { connector } );
> final ServletContextHandler handler = new ServletContextHandler();
> final ServletHolder holder = new ServletHolder(
> CXFNonSpringJaxrsServlet.class );
> holder.setInitParameter( "jaxrs.serviceClasses",
> Resource.class.getName() );
> holder.setInitParameter( "jaxrs.providers", Mapper.class.getName() );
> handler.addServlet( holder, "/*" );
> server.setHandler( handler );
> server.start();
> System.in.read();
> server.stop();
> }
> public static class Mapper implements
> ExceptionMapper<NotImplementedException> {
> @Override
> public Response toResponse( final NotImplementedException exception )
> {
> exception.printStackTrace();
> return Response.ok().build();
> }
> }
> @Path( "/" )
> public static class Resource {
> @GET
> @Path( "/foo" )
> @Produces( "text/plain" )
> public void foo( @Suspended final AsyncResponse response ) {
> throw new NotImplementedException( "foo" );
> }
> @GET
> @Path( "/bar" )
> @Produces( "text/plain" )
> public void bar( @Suspended final AsyncResponse response ) {
> throw new RuntimeException( "bar" );
> }
> }
> }
> {code}
> curl localhost:8888/foo hangs forever; curl localhost:8888/bar does not.
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