I'm using Seam 2.1.2 and JBossTools and I'm trying to run integration tests on Eclipse TestNG plugin.

Test is running correctly but test report informs me that this exception has taken place:

java.lang.NullPointerException
 at java.lang.String.startsWith(Unknown Source)
 at java.lang.String.startsWith(Unknown Source)
 at org.ajax4jsf.webapp.WebXml.getFacesResourceKey(WebXml.java:189)
 at org.ajax4jsf.webapp.WebXml.getFacesResourceKey(WebXml.java:222)
 at org.ajax4jsf.resource.InternetResourceService.serviceResource(InternetResourceService.java:139)
 at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:488)
 at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
 at org.jboss.seam.mock.AbstractSeamTest$Request.run(AbstractSeamTest.java:491)
 at pl.sobczyk.mitsubishi.crm.test.orderSelectorControllerTest.test_clientFinalisation(orderSelectorControllerTest.java:28)
... Removed 22 stack frames

Example of the simplies test classes I am using:

public class WelcomeTest extends SeamTest {

 @Test
 public void test_welcome() throws Exception {
 new FacesRequest() {
 @Override
 protected void updateModelValues() throws Exception {
 //set form input to model attributes
 setValue("#{welcome.value}", "seam");
 }
 @Override
 protected void invokeApplication() {
 //call action methods here
 invokeMethod("#{welcome.welcome}");
 }
 @Override
 protected void renderResponse() {
 //check model attributes if needed
 assert getValue("#{welcome.value}").equals("seam");
 }
 }.run();
 }
}

In pair with simple test suite:

<!DOCTYPE suite SYSTEM "http://beust.com/testng/testng-1.0.dtd" >

<suite name="Welcome Tests" verbose="2" parallel="false">
 <test name="Welcome Test">
 <classes>
 <class name="pl.sobczyk.mitsubishi.crm.test.WelcomeTest"/>
 </classes>
 </test>
</suite>

The exception that occurs is burried in RichFaces code, and it's a bit too much for a developer to debug RichFaces code just in order to run integration test :(.