Re: Grinder bug report?

Philip Aston <[email protected]> Thu, 1 Dec 2016 18:35:20 +0000
Newsgroups gmane.comp.java.grinder.user
Message-ID <[email protected]>
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My bad. The change to the plugin has not been released.


Anyway, I've now read what you're trying to do and I'm afraid its not 
supported.

The plugin needs to be initialised before a script can access them, and 
that process is built into the worker process. The same applies to parts 
of the script API, e.g. test instrumentation and statistics.  The net 
result is a script can only access the script API run by the grinder 
worker process.

- Phil



On 01/12/16 15:11, Dorian Cransac wrote:
>
> Im sorry: that's with 3.11.
>
>
> On Dec 1, 2016 15:57, "Philip Aston" <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     Can you try with 3.11?
>
>     On 01/12/16 14:50, Dorian Cransac wrote:
>>     Hi Philip,
>>
>>     Thanks for your reply. I'm copying the full stacktrace down below
>>     as well as the script itself and the code of the test class. It
>>     seems fairly easy to reproduce. (Btw I don't know why I mentioned
>>     Nashorn in my previous email, I'm obviously just running the
>>     jython engine, sorry about that)/
>>
>>     _Script "GrinderHTTP.py" :_
>>     from net.grinder.script.Grinder import grinder
>>     from net.grinder.plugin.http import HTTPPlugin
>>     from net.grinder.plugin.http import HTTPRequest
>>
>>     request1 = HTTPRequest()
>>
>>     result = request1.GET("http://www.denkbar.io/
>>     <http://www.denkbar.io/>")
>>
>>
>>     _Full stacktrace :_
>>     javax.script.ScriptException:
>>     java.lang.ExceptionInInitializerError:
>>     java.lang.ExceptionInInitializerError in <script> at line number 2
>>     at
>>     org.python.jsr223.PyScriptEngine.scriptException(PyScriptEngine.java:202)
>>     at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:42)
>>     at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:47)
>>     at
>>     javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:249)
>>     at TestGrinder.main(TestGrinder.java:32)
>>     Caused by: Traceback (most recent call last):
>>       File "<script>", line 2, in <module>
>>     java.lang.ExceptionInInitializerError
>>
>>     at java.lang.Class.forName0(Native Method)
>>
>>     at java.lang.Class.forName(Class.java:348)
>>
>>     at org.python.core.Py
>>     <http://org.python.core.Py>.loadAndInitClass(Py.java:991)
>>
>>     at org.python.core.Py
>>     <http://org.python.core.Py>.findClassInternal(Py.java:926)
>>
>>     at org.python.core.Py.findClass(Py.java:951)
>>
>>     at
>>     org.python.core.JavaImportHelper.isJavaClass(JavaImportHelper.java:182)
>>
>>     at
>>     org.python.core.JavaImportHelper.tryAddPackage(JavaImportHelper.java:41)
>>
>>     at org.python.core.imp.import_next(imp.java:845)
>>
>>     at org.python.core.imp.import_logic(imp.java:904)
>>
>>     at org.python.core.imp.import_module_level(imp.java:978)
>>
>>     at org.python.core.imp.importName(imp.java:1062)
>>
>>     at org.python.core.ImportFunction.__call__(__builtin__.java:1280)
>>
>>     at org.python.core.PyObject.__call__(PyObject.java:431)
>>
>>     at org.python.core.__builtin__.__import__(__builtin__.java:1232)
>>
>>     at org.python.core.imp.importFromAs(imp.java:1156)
>>
>>     at org.python.core.imp.importFrom(imp.java:1132)
>>
>>     at org.python.pycode._pyx0.f$0(<script>:7)
>>
>>     at org.python.pycode._pyx0.call_function(<script>)
>>
>>     at org.python.core.PyTableCode.call(PyTableCode.java:167)
>>
>>     at org.python.core.PyCode.call(PyCode.java:18)
>>
>>     at org.python.core.Py.runCode(Py.java:1386)
>>
>>     at org.python.core.__builtin__.eval(__builtin__.java:497)
>>
>>     at org.python.core.__builtin__.eval(__builtin__.java:501)
>>
>>     at org.python.util.PythonInterpreter.eval(PythonInterpreter.java:259)
>>
>>     at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:40)
>>
>>     at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:47)
>>
>>     at
>>     javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:249)
>>
>>     at TestGrinder.main(TestGrinder.java:32)
>>
>>     Caused by: java.lang.NullPointerException
>>
>>     at net.grinder.plugin.http.HTTPPlugin.<clinit>(HTTPPlugin.java:60)
>>
>>     ... 28 more
>>
>>
>>     java.lang.ExceptionInInitializerError:
>>     java.lang.ExceptionInInitializerError
>>
>>     at org.python.core.Py.JavaError(Py.java:546)
>>     at org.python.core.PyTableCode.call(PyTableCode.java:170)
>>     at org.python.core.PyCode.call(PyCode.java:18)
>>     at org.python.core.Py.runCode(Py.java:1386)
>>     at org.python.core.__builtin__.eval(__builtin__.java:497)
>>     at org.python.core.__builtin__.eval(__builtin__.java:501)
>>     at org.python.util.PythonInterpreter.eval(PythonInterpreter.java:259)
>>     at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:40)
>>     ... 3 more
>>     Caused by: java.lang.ExceptionInInitializerError
>>     at java.lang.Class.forName0(Native Method)
>>     at java.lang.Class.forName(Class.java:348)
>>     at org.python.core.Py
>>     <http://org.python.core.Py>.loadAndInitClass(Py.java:991)
>>     at org.python.core.Py
>>     <http://org.python.core.Py>.findClassInternal(Py.java:926)
>>     at org.python.core.Py.findClass(Py.java:951)
>>     at
>>     org.python.core.JavaImportHelper.isJavaClass(JavaImportHelper.java:182)
>>     at
>>     org.python.core.JavaImportHelper.tryAddPackage(JavaImportHelper.java:41)
>>     at org.python.core.imp.import_next(imp.java:845)
>>     at org.python.core.imp.import_logic(imp.java:904)
>>     at org.python.core.imp.import_module_level(imp.java:978)
>>     at org.python.core.imp.importName(imp.java:1062)
>>     at org.python.core.ImportFunction.__call__(__builtin__.java:1280)
>>     at org.python.core.PyObject.__call__(PyObject.java:431)
>>     at org.python.core.__builtin__.__import__(__builtin__.java:1232)
>>     at org.python.core.imp.importFromAs(imp.java:1156)
>>     at org.python.core.imp.importFrom(imp.java:1132)
>>     at org.python.pycode._pyx0.f$0(<script>:7)
>>     at org.python.pycode._pyx0.call_function(<script>)
>>     at org.python.core.PyTableCode.call(PyTableCode.java:167)
>>     ... 9 more
>>     Caused by: java.lang.NullPointerException
>>     at net.grinder.plugin.http.HTTPPlugin.<clinit>(HTTPPlugin.java:60)
>>     ... 28 more
>>
>>     _And the code of my test class :_
>>
>>     import java.io.BufferedReader;
>>     import java.io.File;
>>     import java.io.FileInputStream;
>>     import java.io.FileNotFoundException;
>>     import java.io.IOException;
>>     import java.io.InputStreamReader;
>>     import java.io.Reader;
>>     import java.nio.charset.Charset;
>>
>>     import javax.script.ScriptEngine;
>>     import javax.script.ScriptEngineManager;
>>     import javax.script.ScriptException;
>>
>>     public class TestGrinder {
>>
>>     public static void main(String... args){
>>
>>     ScriptEngineManager manager = new ScriptEngineManager();
>>     ScriptEngine engine = manager.getEngineByName("jython");
>>
>>     File scriptFile = new File("D:\\GrinderHTTP.py");
>>
>>     Reader reader = null;
>>     try {
>>     reader = new BufferedReader(new InputStreamReader(new
>>     FileInputStream(scriptFile), Charset.forName("UTF-8")));
>>     } catch (FileNotFoundException e1) {
>>     // TODO Auto-generated catch block
>>     e1.printStackTrace();
>>     }
>>     try {
>>     try {
>>     engine.eval(reader);
>>     } catch (ScriptException e) {
>>     // TODO Auto-generated catch block
>>     e.printStackTrace();
>>     }
>>     } finally {
>>     if(reader!=null) {
>>     try {
>>     reader.close();
>>     } catch (IOException e) {
>>     // TODO Auto-generated catch block
>>     e.printStackTrace();
>>     }
>>     }
>>     }
>>     }
>>     }
>>
>>
>>
>>     On Thu, Dec 1, 2016 at 3:30 PM, Philip Aston <[email protected]
>>     <mailto:[email protected]>> wrote:
>>
>>         There are still a few stalwarts hanging out on grinder-use
>>         (cc'd), so start there.
>>
>>         Looking at that archive message, its for an older version of
>>         the grinder. The code that's throwing an NPE in that message
>>         doesn't exist any more.
>>
>>         I'm guessing you're using 3.11. You'll need to provide the
>>         error message if you want someone to diagnose it.
>>
>>         - Phil
>>
>>
>>         On 01/12/16 13:58, Dorian Cransac wrote:
>>>         Hi Philip,
>>>
>>>         I hope I'm not bothering you with this email. I've used the
>>>         grinder repeatedly over the course of my career and so I
>>>         guess starting this email with a thank you would be
>>>         appropriate. So thank you :)
>>>
>>>         I'm currently trying to use the HTTP plugin and objects of
>>>         the grinder from within a jython script running on Nashorn
>>>         (via Java's ScriptEngine).
>>>
>>>         I'm running into a problem which seems to have been reported
>>>         a couple of times in the past but never really addressed,
>>>         from what I understand (I found a few similar reports such
>>>         as this one :
>>>         https://sourceforge.net/p/grinder/mailman/message/29028470/
>>>         <https://sourceforge.net/p/grinder/mailman/message/29028470/> ).
>>>
>>>         It's a fairly strange bug as the class and corresponding jar
>>>         file are definitely present in my classpath but something in
>>>         the static initializer seems to be interfering with the
>>>         classpath mecanics.
>>>
>>>         Seeing that there isn't much activity anymore on the
>>>         sourceforge project, I was wondering if I should still try
>>>         to open a ticket there or if you could maybe direct me
>>>         towards someone who would be willing to help debugging this
>>>         error.
>>>
>>>         Best Regards,
>>>         -- 
>>>         Dorian Cransac
>>>         http://denkbar.io
>>
>>
>>
>>
>>
>>     -- 
>>     Dorian Cransac
>>     http://denkbar.io
>
>


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    <div class="moz-cite-prefix">My bad. The change to the plugin has
      not been released.<br>
      <br>
      <br>
      Anyway, I've now read what you're trying to do and I'm afraid its
      not supported.<br>
      <br>
      The plugin needs to be initialised before a script can access
      them, and that process is built into the worker process. The same
      applies to parts of the script API, e.g. test instrumentation and
      statistics.  The net result is a script can only access the script
      API run by the grinder worker process.<br>
      <br>
      - Phil<br>
      <br>
      <br>
      <br>
      On 01/12/16 15:11, Dorian Cransac wrote:<br>
    </div>
    <blockquote
cite="mid:CAE4v=GTNOgm4hWoZt2qZa58WcFunKGUdYOWB8xTqL4_Ja4ikpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org"
      type="cite">
      <p dir="ltr">Im sorry: that's with 3.11.</p>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Dec 1, 2016 15:57, "Philip Aston"
          &lt;<a moz-do-not-send="true" href="mailto:[email protected]">[email protected]</a>&gt;
          wrote:<br type="attribution">
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000">
              <div class="m_-8755322984812116062moz-cite-prefix">Can you
                try with 3.11?<br>
                <br>
                On 01/12/16 14:50, Dorian Cransac wrote:<br>
              </div>
              <blockquote type="cite">
                <div dir="ltr">Hi Philip,
                  <div><br>
                  </div>
                  <div>Thanks for your reply. I'm copying the full
                    stacktrace down below as well as the script itself
                    and the code of the test class. It seems fairly easy
                    to reproduce. (Btw I don't know why I mentioned
                    Nashorn in my previous email, I'm obviously just
                    running the jython engine, sorry about that)/</div>
                  <div><br>
                  </div>
                  <div><u>Script "GrinderHTTP.py" :</u></div>
                  <div>
                    <div>from net.grinder.script.Grinder import grinder</div>
                    <div>from net.grinder.plugin.http import HTTPPlugin</div>
                    <div>from net.grinder.plugin.http import HTTPRequest</div>
                    <div><br>
                    </div>
                    <div>request1 = HTTPRequest()</div>
                    <div><br>
                    </div>
                    <div>result = request1.GET("<a
                        moz-do-not-send="true"
                        href="http://www.denkbar.io/" target="_blank">http://www.<wbr>denkbar.io/</a>")</div>
                  </div>
                  <div><br>
                  </div>
                  <div><br>
                  </div>
                  <div><u>Full stacktrace :</u></div>
                  <div>
                    <div>javax.script.ScriptException: java.lang.<wbr>ExceptionInInitializerError:
                      java.lang.<wbr>ExceptionInInitializerError in
                      &lt;script&gt; at line number 2</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.<wbr>scriptException(<wbr>PyScriptEngine.java:202)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.eval(<wbr>PyScriptEngine.java:42)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.eval(<wbr>PyScriptEngine.java:47)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      javax.script.<wbr>AbstractScriptEngine.eval(<wbr>AbstractScriptEngine.java:249)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      TestGrinder.main(TestGrinder.<wbr>java:32)</div>
                    <div>Caused by: Traceback (most recent call last):</div>
                    <div>  File "&lt;script&gt;", line 2, in
                      &lt;module&gt;</div>
                    <div>java.lang.<wbr>ExceptionInInitializerError</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      java.lang.Class.forName0(<wbr>Native Method)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      java.lang.Class.forName(Class.<wbr>java:348)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      <a moz-do-not-send="true"
                        href="http://org.python.core.Py">org.python.core.Py</a>.<wbr>loadAndInitClass(Py.java:991)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      <a moz-do-not-send="true"
                        href="http://org.python.core.Py">org.python.core.Py</a>.<wbr>findClassInternal(Py.java:926)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.Py.findClass(<wbr>Py.java:951)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>JavaImportHelper.isJavaClass(<wbr>JavaImportHelper.java:182)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>JavaImportHelper.<wbr>tryAddPackage(<wbr>JavaImportHelper.java:41)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>next(imp.java:845)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>logic(imp.java:904)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>module_level(imp.java:978)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importName(imp.java:1062)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>ImportFunction.__call__(__<wbr>builtin__.java:1280)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyObject.__<wbr>call__(PyObject.java:431)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.__<wbr>import__(__builtin__.java:<wbr>1232)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importFromAs(imp.java:1156)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importFrom(imp.java:1132)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.pycode._pyx0.f$0(&lt;<wbr>script&gt;:7)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.pycode._pyx0.call_<wbr>function(&lt;script&gt;)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyTableCode.<wbr>call(PyTableCode.java:167)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyCode.call(<wbr>PyCode.java:18)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.Py.runCode(Py.<wbr>java:1386)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.<wbr>eval(__builtin__.java:497)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.<wbr>eval(__builtin__.java:501)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.util.<wbr>PythonInterpreter.eval(<wbr>PythonInterpreter.java:259)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.eval(<wbr>PyScriptEngine.java:40)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.eval(<wbr>PyScriptEngine.java:47)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      javax.script.<wbr>AbstractScriptEngine.eval(<wbr>AbstractScriptEngine.java:249)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      TestGrinder.main(TestGrinder.<wbr>java:32)</div>
                    <div><br>
                    </div>
                    <div>Caused by: java.lang.NullPointerException</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      net.grinder.plugin.http.<wbr>HTTPPlugin.&lt;clinit&gt;(<wbr>HTTPPlugin.java:60)</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>...
                      28 more</div>
                    <div><br>
                    </div>
                    <div><br>
                    </div>
                    <div>java.lang.<wbr>ExceptionInInitializerError:
                      java.lang.<wbr>ExceptionInInitializerError</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.Py.JavaError(<wbr>Py.java:546)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyTableCode.<wbr>call(PyTableCode.java:170)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyCode.call(<wbr>PyCode.java:18)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.Py.runCode(Py.<wbr>java:1386)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.<wbr>eval(__builtin__.java:497)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.<wbr>eval(__builtin__.java:501)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.util.<wbr>PythonInterpreter.eval(<wbr>PythonInterpreter.java:259)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.jsr223.<wbr>PyScriptEngine.eval(<wbr>PyScriptEngine.java:40)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>...
                      3 more</div>
                    <div>Caused by: java.lang.<wbr>ExceptionInInitializerError</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      java.lang.Class.forName0(<wbr>Native Method)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      java.lang.Class.forName(Class.<wbr>java:348)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      <a moz-do-not-send="true"
                        href="http://org.python.core.Py">org.python.core.Py</a>.<wbr>loadAndInitClass(Py.java:991)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      <a moz-do-not-send="true"
                        href="http://org.python.core.Py">org.python.core.Py</a>.<wbr>findClassInternal(Py.java:926)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.Py.findClass(<wbr>Py.java:951)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>JavaImportHelper.isJavaClass(<wbr>JavaImportHelper.java:182)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>JavaImportHelper.<wbr>tryAddPackage(<wbr>JavaImportHelper.java:41)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>next(imp.java:845)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>logic(imp.java:904)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.import_<wbr>module_level(imp.java:978)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importName(imp.java:1062)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.<wbr>ImportFunction.__call__(__<wbr>builtin__.java:1280)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyObject.__<wbr>call__(PyObject.java:431)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.__builtin__.__<wbr>import__(__builtin__.java:<wbr>1232)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importFromAs(imp.java:1156)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.imp.<wbr>importFrom(imp.java:1132)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.pycode._pyx0.f$0(&lt;<wbr>script&gt;:7)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.pycode._pyx0.call_<wbr>function(&lt;script&gt;)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      org.python.core.PyTableCode.<wbr>call(PyTableCode.java:167)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>...
                      9 more</div>
                    <div>Caused by: java.lang.NullPointerException</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>at
                      net.grinder.plugin.http.<wbr>HTTPPlugin.&lt;clinit&gt;(<wbr>HTTPPlugin.java:60)</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>...
                      28 more</div>
                  </div>
                  <div><br>
                  </div>
                  <div><u>And the code of my test class :</u></div>
                  <div><br>
                  </div>
                  <div>
                    <div>import java.io.BufferedReader;</div>
                    <div>import java.io.File;</div>
                    <div>import java.io.FileInputStream;</div>
                    <div>import java.io.FileNotFoundException;</div>
                    <div>import java.io.IOException;</div>
                    <div>import java.io.InputStreamReader;</div>
                    <div>import java.io.Reader;</div>
                    <div>import java.nio.charset.Charset;</div>
                    <div><br>
                    </div>
                    <div>import javax.script.ScriptEngine;</div>
                    <div>import javax.script.<wbr>ScriptEngineManager;</div>
                    <div>import javax.script.ScriptException;</div>
                    <div><br>
                    </div>
                    <div>public class TestGrinder {</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>public
                      static void main(String... args){</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>ScriptEngineManager
                      manager = new ScriptEngineManager();</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>ScriptEngine
                      engine = manager.getEngineByName("<wbr>jython");</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>File
                      scriptFile = new File("D:\\GrinderHTTP.py");</div>
                    <div><br>
                    </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>Reader
                      reader = null;</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>try
                      {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>reader
                      = new BufferedReader(new InputStreamReader(new
                      FileInputStream(scriptFile),
                      Charset.forName("UTF-8")));</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>}
                      catch (FileNotFoundException e1) {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>//
                      TODO Auto-generated catch block</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>e1.printStackTrace();</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>}
                          </div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>try
                      {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>try
                      {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>engine.eval(reader);</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>}
                      catch (ScriptException e) {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>//
                      TODO Auto-generated catch block</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>e.printStackTrace();</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>}</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>}
                      finally {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>if(reader!=null)
                      {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>try
                      {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">					</span>reader.close();</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>}
                      catch (IOException e) {</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">					</span>//
                      TODO Auto-generated catch block</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">					</span>e.printStackTrace();</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">				</span>}</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">			</span>}</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">		</span>}</div>
                    <div><span class="m_-8755322984812116062gmail-Apple-tab-span" style="white-space:pre-wrap">	</span>}</div>
                    <div>}</div>
                  </div>
                  <div><br>
                  </div>
                  <div><br>
                  </div>
                </div>
                <div class="gmail_extra"><br>
                  <div class="gmail_quote">On Thu, Dec 1, 2016 at 3:30
                    PM, Philip Aston <span dir="ltr">&lt;<a
                        moz-do-not-send="true"
                        href="mailto:[email protected]" target="_blank">[email protected]</a>&gt;</span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0
                      .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div bgcolor="#FFFFFF" text="#000000">
                        <div
                          class="m_-8755322984812116062m_6494728983689282515moz-cite-prefix">There
                          are still a few stalwarts hanging out on
                          grinder-use (cc'd), so start there.<br>
                          <br>
                          Looking at that archive message, its for an
                          older version of the grinder. The code that's
                          throwing an NPE in that message doesn't exist
                          any more.<br>
                          <br>
                          I'm guessing you're using 3.11. You'll need to
                          provide the error message if you want someone
                          to diagnose it.<br>
                          <br>
                          - Phil
                          <div>
                            <div class="m_-8755322984812116062h5"><br>
                              <br>
                              On 01/12/16 13:58, Dorian Cransac wrote:<br>
                            </div>
                          </div>
                        </div>
                        <div>
                          <div class="m_-8755322984812116062h5">
                            <blockquote type="cite">
                              <div dir="ltr">
                                <div>Hi Philip,</div>
                                <div><br>
                                </div>
                                <div>I hope I'm not bothering you with
                                  this email. I've used the grinder
                                  repeatedly over the course of my
                                  career and so I guess starting this
                                  email with a thank you would be
                                  appropriate. So thank you :)</div>
                                <div><br>
                                </div>
                                <div>I'm currently trying to use the
                                  HTTP plugin and objects of the grinder
                                  from within a jython script running on
                                  Nashorn (via Java's ScriptEngine).</div>
                                <div><br>
                                </div>
                                <div>I'm running into a problem which
                                  seems to have been reported a couple
                                  of times in the past but never really
                                  addressed, from what I understand (I
                                  found a few similar reports such as
                                  this one : <a moz-do-not-send="true"
href="https://sourceforge.net/p/grinder/mailman/message/29028470/"
                                    target="_blank">https://sourceforge.net/p/grin<wbr>der/mailman/message/29028470/</a>
                                  ).</div>
                                <div><br>
                                </div>
                                <div>It's a fairly strange bug as the
                                  class and corresponding jar file are
                                  definitely present in my classpath but
                                  something in the static initializer
                                  seems to be interfering with the
                                  classpath mecanics.</div>
                                <div><br>
                                </div>
                                <div>Seeing that there isn't much
                                  activity anymore on the sourceforge
                                  project, I was wondering if I should
                                  still try to open a ticket there or if
                                  you could maybe direct me towards
                                  someone who would be willing to help
                                  debugging this error.</div>
                                <div><br>
                                </div>
                                <div>Best Regards,</div>
                                -- <br>
                                <div
                                  class="m_-8755322984812116062m_6494728983689282515gmail_signature">
                                  <div dir="ltr">Dorian Cransac
                                    <div><a moz-do-not-send="true"
                                        href="http://denkbar.io"
                                        target="_blank">http://denkbar.io</a></div>
                                  </div>
                                </div>
                              </div>
                            </blockquote>
                            <p><br>
                            </p>
                          </div>
                        </div>
                      </div>
                    </blockquote>
                  </div>
                  <br>
                  <br clear="all">
                  <div><br>
                  </div>
                  -- <br>
                  <div class="m_-8755322984812116062gmail_signature"
                    data-smartmail="gmail_signature">
                    <div dir="ltr">Dorian Cransac
                      <div><a moz-do-not-send="true"
                          href="http://denkbar.io" target="_blank">http://denkbar.io</a></div>
                    </div>
                  </div>
                </div>
              </blockquote>
              <p><br>
              </p>
            </div>
          </blockquote>
        </div>
      </div>
    </blockquote>
    <p><br>
    </p>
  </body>
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