ExceptionMapperWithApplicationInjection.java

package org.jboss.seam.compat.jaxrs.provider;

import javax.ws.rs.core.Application;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

@Provider
public class ExceptionMapperWithApplicationInjection implements ExceptionMapper<NullPointerException> {
    @Context
    private Application application;

    @Override
    public Response toResponse(NullPointerException exception) {
        StringBuilder builder = new StringBuilder();
        builder.append("Application:" + (application != null));
        return Response.status(200).entity(builder.toString()).type(MediaType.TEXT_PLAIN).build();
    }
}