java.lang.NullPointerException
	at com.gargoylesoftware.htmlunit.html.HtmlPage.loadFrames(HtmlPage.java:1786)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:169)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:456)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:332)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:389)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:374)
	at org.jvnet.hudson.test.HudsonTestCase$WebClient.getPage(HudsonTestCase.java:1519)
	at org.jvnet.hudson.test.HudsonTestCase.tearDown(HudsonTestCase.java:297)
	at org.jvnet.hudson.test.HudsonTestCase.runBare(HudsonTestCase.java:226)
	at com.sun.maven.junit.LocalTestCaseRunner.runTests(LocalTestCaseRunner.java:113)
	at com.sun.maven.junit.LocalTestCaseRunner.runTestCase(LocalTestCaseRunner.java:56)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:274)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:255)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:215)
	at hudson.remoting.UserRequest.perform(UserRequest.java:104)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:250)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)