Jenkins Jmeter插件- NonGUIDriver java.lang.NullPointerException

Question

我设置了一个Jenkins作业来运行一个Jmeter测试，该测试是使用JMeter图形用户界面构建的，但是构建总是失败，并报告NonGUIDriver java.lang.NullPointerException。

这是JMeter.log文件中显示的内容：

2013/07/22 10:28:16 ERROR - jmeter.save.SaveService: Conversion error com.thoughtworks.xstream.converters.ConversionException: HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy
---- Debugging information ----
message             : HTTPSamplerProxy : HTTPSamplerProxy
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : HTTPSamplerProxy : HTTPSamplerProxy
class               : org.apache.jorphan.collections.ListedHashTree
required-type       : org.apache.jorphan.collections.ListedHashTree
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[3]/HTTPSamplerProxy
line number         : 91
------------------------------- : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy
---- Debugging information ----
message             : HTTPSamplerProxy : HTTPSamplerProxy
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : HTTPSamplerProxy : HTTPSamplerProxy
class               : org.apache.jorphan.collections.ListedHashTree
required-type       : org.apache.jorphan.collections.ListedHashTree
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[3]/HTTPSamplerProxy
line number         : 91
-------------------------------
message             : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy
---- Debugging information ----
message             : HTTPSamplerProxy : HTTPSamplerProxy
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : HTTPSamplerProxy : HTTPSamplerProxy
class               : org.apache.jorphan.collections.ListedHashTree
required-type       : org.apache.jorphan.collections.ListedHashTree
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[3]/HTTPSamplerProxy
line number         : 91
-------------------------------
cause-exception     : com.thoughtworks.xstream.converters.ConversionException
cause-message       : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy : HTTPSamplerProxy
first-jmeter-class  : org.apache.jmeter.save.converters.HashTreeConverter.unmarshal(HashTreeConverter.java:81)
class               : org.apache.jmeter.save.ScriptWrapper
required-type       : org.apache.jorphan.collections.ListedHashTree
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[3]/HTTPSamplerProxy
line number         : 91
------------------------------- 
2013/07/22 10:28:16 ERROR - jmeter.JMeter:  java.lang.NullPointerException
    at org.apache.jmeter.gui.tree.JMeterTreeModel.addSubTree(JMeterTreeModel.java:91)
    at org.apache.jmeter.JMeter.runNonGui(JMeter.java:724)
    at org.apache.jmeter.JMeter.startNonGui(JMeter.java:702)
    at org.apache.jmeter.JMeter.start(JMeter.java:353)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.jmeter.NewDriver.main(NewDriver.java:207)

Answer 1

在寻找了太多之后，我在github中找到了this thread。

基本上，要成功构建项目，我所要做的就是在.jmx测试文件中搜索并将HTTPSamplerProxy替换为HTTPSampler，而jenkins项目现在可以顺利构建了。Joy！

Answer 2

我也有同样的问题。问题是远程服务器上的Jmeter版本是2.6，而用来创建.jmx文件的版本是2.8。因此，我安装了一个较低的版本，并重新创建了.jmx文件，将其移动到远程服务器上，一切正常

Answer 3

我解决了这个问题，请参考下面的截图。

enter image description here