Hi Lars,

can you provide the whole stacktrace? Using WebTest directly it comes on the console. I don't know if it's the case too when running WebTest from Groovy (you may have to play with the log4j config file).

Marc.

Lars Burgess wrote:
Thanks for the quick reply. Unfortunately, I'm still getting the same NullPointerException. I'm using the latest webtest build in maven format (R_1440) which uses groovy-all-1.0-jsr-06. All of my other test cases which store properties run successfully written in the format:

storeHeader(name: 'cookie', property: 'cookieHeader')

Anything else I should try?

Thanks,
Lars


On 11/29/06, *Dierk Koenig* < [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    I don't think that this is the root cause of your issue but it may
    be that in the
    Groovy version you are using "property" is still a keyword.
    please try
    storeLength('property': 'contentLength')
ciao
    Dierk

        -----Original Message-----
        *From:* [EMAIL PROTECTED]
        <mailto:[EMAIL PROTECTED]> [mailto:
        [EMAIL PROTECTED]
        <mailto:[EMAIL PROTECTED]>]*On Behalf Of *Lars Burgess
        *Sent:* Mittwoch, 29. November 2006 20:37
        *To:* [email protected] <mailto:[email protected]>
        *Subject:* [Webtest] NullPointerException using storeLength step
        against length of zero

        Hello,

        I'm seeing the following exception when I invoke a url that
        returns zero content (which is expected in this test case):


        Test Case (in groovy):

        invoke(description: 'Positive: Verify server returns no content
        if cache is correct',
               url: CACHED_URL)

        storeLength(property: 'contentLength')

        verifyProperty(description: 'content-length should be 0',
                       name: 'contentLength',
                       text: '0')


        Exception(from webtest report):

        com.canoo.webtest.engine.StepExecutionException


              Message

        Unexpected exception caught: java.lang.NullPointerException


              Stacktrace

        com.canoo.webtest.engine.StepExecutionException: Unexpected exception caught: 
java.lang.NullPointerException, Step: InvokePage at :  with (taskName="invoke")
                at com.canoo.webtest.steps.Step.handleUnexpectedException

        (Step.java:413)
                at 
com.canoo.webtest.steps.AbstractBrowserAction.handleUnexpectedException(AbstractBrowserAction.java:120)
                at 
com.canoo.webtest.steps.request.TargetHelper.protectedGoto(TargetHelper.java:115)
at com.canoo.webtest.steps.request.AbstractTargetAction.gotoTarget(AbstractTargetAction.java:106)
                at 
com.canoo.webtest.steps.request.AbstractTargetAction.doExecute(AbstractTargetAction.java:78)
                at com.canoo.webtest.steps.Step.execute

        (Step.java:106)
                at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
                at org.apache.tools.ant.Task.perform(Task.java:364)
                at 
com.canoo.webtest.ant.TestStepSequence.executeSteps(TestStepSequence.java

        :43)
                at 
com.canoo.webtest.ant.TestStepSequence.doExecute(TestStepSequence.java:31)
                at com.canoo.webtest.steps.Step.execute(Step.java:106)
                at org.apache.tools.ant.Task.perform(Task.java:364)
                at com.canoo.webtest.ant.WebtestTask.execute

        (WebtestTask.java:164)
                at org.apache.tools.ant.Task.perform(Task.java:364)
                at groovy.util.AntBuilder.nodeCompleted(AntBuilder.java:177)
                at 
groovy.util.BuilderSupport.doInvokeMethod(BuilderSupport.java:175)


                at groovy.util.AntBuilder.doInvokeMethod(AntBuilder.java:138)
                at 
groovy.util.BuilderSupport.invokeMethod(BuilderSupport.java:86)
                at 
org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:163)
                at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod

        (InvokerHelper.java:104)
                at 
org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethod(ScriptBytecodeAdapter.java:85)
                at 
net.mobio.webtest.tests.CacheControlTest.testCacheControlDigest(CacheControlTest.groovy
        :68)

                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 junit.framework.TestCase.runTest(TestCase.java:154)
                at junit.framework.TestCase.runBare(TestCase.java:127)
                at junit.framework.TestResult$1.protect(TestResult.java:106)
                at junit.framework.TestResult.runProtected

        (TestResult.java:124)
                at junit.framework.TestResult.run(TestResult.java:109)
                at junit.framework.TestCase.run(TestCase.java:118)
                at junit.framework.TestSuite.runTest(TestSuite.java:208)
                at junit.framework.TestSuite.run

        (TestSuite.java:203)
                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.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:210)
                at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(
        AbstractDirectoryTestSuite.java
        :135)
                at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:122)
                at org.apache.maven.surefire.Surefire.run(Surefire.java:129)
                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.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess

        (SurefireBooter.java:225)
                at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:747)
        Caused by: java.lang.NullPointerException
                at org.apache.commons.io.IOUtils.copy(IOUtils.java:996)
at org.apache.commons.io.IOUtils.toByteArray(IOUtils.java:217)
                at 
com.gargoylesoftware.htmlunit.WebResponseData.getBody(WebResponseData.java:150)
                at 
com.gargoylesoftware.htmlunit.WebResponseData.<init>(WebResponseData.java

        :105)
                at 
com.gargoylesoftware.htmlunit.HttpWebConnection.makeWebResponse(HttpWebConnection.java:387)
                at 
com.gargoylesoftware.htmlunit.HttpWebConnection.getResponse(HttpWebConnection.java:128)
                at 
com.gargoylesoftware.htmlunit.WebClient.loadWebResponseFromWebConnection

        (WebClient.java:1371)
                at 
com.gargoylesoftware.htmlunit.WebClient.loadWebResponse(WebClient.java:1329)
                at 
com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:322)
                at com.gargoylesoftware.htmlunit.WebClient.getPage

        (WebClient.java:389)
                at 
com.canoo.webtest.steps.request.TargetHelper.getResponse(TargetHelper.java:69)
                at 
com.canoo.webtest.steps.request.AbstractTargetAction.getResponse(AbstractTargetAction.java:68)
                at com.canoo.webtest.steps.request.InvokePage.findTarget

        (InvokePage.java:134)
                at 
com.canoo.webtest.steps.request.AbstractTargetAction$1.call(AbstractTargetAction.java:108)
                at 
com.canoo.webtest.steps.request.TargetHelper.protectedGoto(TargetHelper.java:88)
                ... 45 more



Is it possible to invoke a url and verify that the content length is zero? I specifically need to test this because I'm testing that my server is caching content.


        Thanks,
        Lars



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