I’m getting an intermittent exception in my jmeter.log file, and I can’t tell whether it’s a problem with jmeter or a problem with my web service. My guess is that it’s a problem with my web service, but jmeter isn’t giving me a particularly useful error message I can use to figure that out. Can anyone tell from this stack trace?
This happens when during a web service test that I have in a single thread loop, exercising my soap tests in a serial fashion. About 2% of the time, I'll see this in the Response Data tab of jmeter: --------------------------------------------------------- Thread Name: Smoke Test 1-1 Sample Start: 2010-02-02 15:26:21 PST Load time: 98 Latency: 0 Size in bytes: 0 Sample Count: 1 Error Count: 1 Response code: 000 Response message: java.lang.NullPointerException Response headers: SampleResult fields: ContentType: text/xml DataEncoding: UTF-8 --------------------------------------------------------- And I see this in the jmeter log at the same time: --------------------------------------------------------- 2010/02/02 15:27:10 ERROR - jmeter.protocol.http.sampler.WebServiceSampler: Problem processing the SOAP request java.lang.NullPointerException at org.apache.soap.transport.TransportMessage.read(TransportMessage.java:206) at org.apache.soap.util.net.HTTPUtils.post(HTTPUtils.java:382) at org.apache.soap.transport.http.SOAPHTTPConnection.send(SOAPHTTPConnection.java:309) at org.apache.soap.messaging.Message.send(Message.java:123) at org.apache.jmeter.protocol.http.sampler.WebServiceSampler.sample(WebServiceSampler.java:506) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1023) at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:346) at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:243) at java.lang.Thread.run(Thread.java:619) --------------------------------------------------------- Does anyone know what this could mean? David
