I got a problem when I'm trying to test the resteasy interface,but when I browse the url:http://localhost:8080/cmanager/seam/resource/rest/record/24, it works well.
actually I follow the steps in the seam_reference.I use the junit4 to test it.
Any insight would be appreciated!

error:
java.lang.NullPointerException
     at org.jboss.seam.resteasy.testfwk.ResourceSeamTest$ResourceRequest.run(ResourceSeamTest.java:126)
     at com.mydomain.cmanager.test.MyTest.test(MyTest.java:37)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
     at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
     at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
     at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
     at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
     at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
     at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
     at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
     at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
     at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
     at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
     at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
     at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


My test class is :

package com.mydomain.cmanager.test;
import java.util.HashMap;
import java.util.Map;
import org.jboss.seam.resteasy.testfwk.ResourceSeamTest;
import org.jboss.seam.resteasy.testfwk.MockHttpServletResponse;
import org.jboss.seam.resteasy.testfwk.MockHttpServletRequest;
import org.junit.Test;
public class MyTest extends ResourceSeamTest {
     @Override
     public Map<String, Object> getDefaultHeaders()
     {
          return new HashMap<String, Object>()
          {{
               put("Accept", "text/plain");
          }};
     }
     @Test
     public void test() throws Exception
     {
          new ResourceRequest(Method.GET, "http://localhost:8080/cmanager/seam/resource/rest/record/24")
          {
               @Override
               protected void prepareRequest(MockHttpServletRequest request)
               {
                    request.addHeader("Accept-Language", "en_US, de");
               }
               @Override
               protected void onResponse(MockHttpServletResponse response)
               {
                    assert response.getStatus() == 200;                                  }
          }.run();
           }
}