Apache jmeter - 2.10 - Null point exception while

Question

The Jmeter script runs fine on apache-jmeter2.8. I upgraded recently to apache-jmeter-2.10 and I started getting Null Point exception.

I revert back to apache-jmeter2.8 and the script works fine.

        java.lang.NullPointerException
at org.apache.jorphan.util.JOrphanUtils.replaceAllChars(JOrphanUtils.java:264)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.encodeSpaces(HTTPSamplerBase.java:1332)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.followRedirects(HTTPSamplerBase.java:1404)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.resultProcessing(HTTPSamplerBase.java:1482)
at org.apache.jmeter.protocol.http.sampler.HTTPAbstractImpl.resultProcessing(HTTPAbstractImpl.java:306)
at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:381)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1105)
at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1094)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:429)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:257)
at java.lang.Thread.run(Unknown Source)

The script is general login script and the failure happens when it is trying to post.

Let me know if you need more info.

Answer 1

The above error has been addressed in 2.11 version. Download and use the latest version of jmeter 2.11 and check out your script.

No need to go for Nightly Build.

Answer 2

You may be facing this known bug that has been fixed in nightly build:

• https://issues.apache.org/bugzilla/show_bug.cgi?id=55717

As a workaround, try changing http implementation to Java instead of HttpClient4 implementation.

If you want to give nightly build a try, see:

http://jmeter.apache.org/nightly.html

Read:

Installing JMeter runtime

Download the _bin and _lib files

Unpack the archives into the same directory structure

The other archives are not needed to run JMeter.