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[Bug 1845320] Re: NullPointerException in the create_node function

To: python-jenkins-developers@xxxxxxxxxxxxxxxxxxx
From: Marcin Cieślak <1845320@xxxxxxxxxxxxxxxxxx>
Date: Sun, 26 Jul 2020 20:56:03 -0000
Reply-to: Bug 1845320 <1845320@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This is not really related to python-jenkins, only to the Jenkins
itself. For example a similar issue has been reported at https://issues
.jenkins-ci.org/browse/JENKINS-34386 and then it got resolved as "not a
bug"

You should take it to the general Jenkis fora and add details how
exactly you are creating the project.

The problem might be related to the script approval process in Jenkins:
https://www.jenkins.io/doc/book/managing/script-approval/

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https://bugs.launchpad.net/bugs/1845320

Title:
  NullPointerException in the create_node function

Status in Python Jenkins:
  New

Bug description:
  Hi,

  I have NullPointerException when using the create_node function in python-jenkins:
  Traceback (most recent call last):
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/jenkins/__init__.py", line 575, in jenkins_request
      self._request(req))
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/jenkins/__init__.py", line 535, in _response_handler
      response.raise_for_status()
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/requests/models.py", line 935, in raise_for_status
      raise HTTPError(http_error_msg, response=self)
  requests.exceptions.HTTPError: 500 Server Error:  for url: https://fem022-eiffel021.rnd.ki.sw.ericsson.se:8443/jenkins/computer/doCreateItem

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "./node_manager.py", line 309, in <module>
      main()
    File "./node_manager.py", line 305, in main
      manager.work()
    File "./node_manager.py", line 296, in work
      getattr(self, self.__args.action)()
    File "./node_manager.py", line 230, in move
      self.__servers[self._selected_tofem].create_node(jNode)
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/jenkins/__init__.py", line 1577, in create_node
      'POST', self._build_url(CREATE_NODE, locals()), data=params)
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/jenkins/__init__.py", line 556, in jenkins_open
      return self.jenkins_request(req, add_crumb, resolve_auth).text
    File "/home/ebodtib/ci/dependencies/virtualenv/general/lib/python3.7/site-packages/jenkins/__init__.py", line 586, in jenkins_request
      raise JenkinsException(msg)
  jenkins.JenkinsException: Error in request. Possibly authentication failed [500]: 



    
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  <script src="/jenkins/static/b8450b1a/jsbundles/page-init.js" type="text/javascript"></script></head><body data-model-type="hudson.model.Hudson" id="jenkins" class="yui-skin-sam two-column jenkins-2.89.2" data-version="2.89.2"><a href="#skip2content" class="skiplink">Skip to content</a><div id="page-head"><div id="header"><div class="logo"><a id="jenkins-home-link" href="/jenkins/"><img src="/jenkins/static/b8450b1a/images/headshot.png" alt="title" id="jenkins-head-icon" /><img src="/jenkins/static/b8450b1a/images/title.png" alt="title" width="139" id="jenkins-name-icon" height="34" /></a></div><div class="login">�<a href="/jenkins/login?from=%2Fjenkins%2Fcomputer%2FdoCreateItem"><b>log in</b></a></div><div class="searchbox hidden-xs"><form method="get" name="search" action="/jenkins/search/" style="position:relative;" class="no-json"><div id="search-box-minWidth"></div><div id="search-box-sizer"></div><div id="searchform"><input name="q" placeholder="search" id="search-box" class="has-default-text" />�<a href="https://jenkins.io/redirect/search-box";><img src="/jenkins/static/b8450b1a/images/16x16/help.png" style="width: 16px; height: 16px; " class="icon-help icon-sm" /></a><div id="search-box-completion"></div><script>createSearchBox("/jenkins/search/");</script></div></form></div></div><div id="breadcrumbBar"><tr id="top-nav"><td id="left-top-nav" colspan="2"><link rel='stylesheet' href='/jenkins/adjuncts/b8450b1a/lib/layout/breadcrumbs.css' type='text/css' /><script src='/jenkins/adjuncts/b8450b1a/lib/layout/breadcrumbs.js' type='text/javascript'></script><div class="top-sticker noedge"><div class="top-sticker-inner"><div id="right-top-nav"></div><ul id="breadcrumbs"><li class="item"><a href="/jenkins/" class="model-link inside">Jenkins</a></li><li href="/jenkins/" class="children"></li></ul><div id="breadcrumb-menu-target"></div></div></div></td></tr></div></div><div id="page-body" class="clear"><div id="side-panel"><div class="task"><a href="https://jenkins.io/"; class="task-icon-link"><img src="/jenkins/static/b8450b1a/images/24x24/next.png" style="width: 24px; height: 24px; width: 24px; height: 24px; margin: 2px;" class="icon-next icon-md" /></a>�<a href="https://jenkins.io/"; class="task-link">Jenkins project</a></div><div class="task"><a href="https://jenkins.io/redirect/report-an-issue"; class="task-icon-link"><img src="/jenkins/static/b8450b1a/images/24x24/gear2.png" style="width: 24px; height: 24px; width: 24px; height: 24px; margin: 2px;" class="icon-gear2 icon-md" /></a>�<a href="https://jenkins.io/redirect/report-an-issue"; class="task-link">Bug tracker</a></div><div class="task"><a href="https://jenkins.io/redirect/mailing-lists"; class="task-icon-link"><img src="/jenkins/static/b8450b1a/images/24x24/search.png" style="width: 24px; height: 24px; width: 24px; height: 24px; margin: 2px;" class="icon-search icon-md" /></a>�<a href="https://jenkins.io/redirect/mailing-lists"; class="task-link">Mailing Lists</a></div><div class="task"><a href="https://twitter.com/jenkinsci"; class="task-icon-link"><img src="/jenkins/static/b8450b1a/images/24x24/user.png" style="width: 24px; height: 24px; width: 24px; height: 24px; margin: 2px;" class="icon-user icon-md" /></a>�<a href="https://twitter.com/jenkinsci"; class="task-link">Twitter: @jenkinsci</a></div></div><div id="main-panel"><a name="skip2content"></a><h1 style="text-align: center"><img src="/jenkins/static/b8450b1a/images/rage.png" width="154" height="179" /><span style="font-size:50px">�Oops!</span></h1><div id="error-description"><p>A problem occurred while processing the request.
          Please check <a href="https://jenkins.io/redirect/issue-tracker";>our bug tracker</a> to see if a similar problem has already been reported.
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          <a href="https://jenkins.io/redirect/users-mailing-list";>The users list</a> might be also useful in understanding what has happened.</p><h2>Stack trace</h2><pre style="margin:2em; clear:both">java.lang.NullPointerException
  	at org.jenkinsci.plugins.scriptsecurity.scripts.ScriptApproval.hash(ScriptApproval.java:385)
  	at org.jenkinsci.plugins.scriptsecurity.scripts.ScriptApproval.configuring(ScriptApproval.java:437)
  	at hudson.slaves.CommandLauncher.&lt;init>(CommandLauncher.java:77)
  	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
  	at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:529)
  	at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:783)
  	at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83)
  	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678)
  	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478)
  	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:474)
  	at hudson.model.Descriptor.newInstance(Descriptor.java:592)
  Caused: java.lang.Error: Failed to instantiate class hudson.slaves.CommandLauncher from {"stapler-class":"hudson.slaves.CommandLauncher"}
  	at hudson.model.Descriptor.newInstance(Descriptor.java:600)
  	at hudson.model.Descriptor$NewInstanceBindInterceptor.instantiate(Descriptor.java:645)
  	at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:755)
  	at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83)
  	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678)
  	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478)
  	at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:777)
  	at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83)
  	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678)
  	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478)
  	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:474)
  	at hudson.model.Descriptor.newInstance(Descriptor.java:592)
  	at hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:300)
  	at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:625)
  	at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:343)
  	at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:52)
  	at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
  	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:184)
  	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:117)
  	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:129)
  	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
  	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:715)
  Caused: javax.servlet.ServletException
  	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:765)
  	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:845)
  	at org.kohsuke.stapler.MetaClass$3.doDispatch(MetaClass.java:209)
  	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
  	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:715)
  	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:845)
  	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
  	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
  	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
  	at org.jenkinsci.plugins.ssegateway.Endpoint$SSEListenChannelFilter.doFilter(Endpoint.java:243)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at io.jenkins.blueocean.auth.jwt.impl.JwtAuthenticationFilter.doFilter(JwtAuthenticationFilter.java:61)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at com.cloudbees.jenkins.support.slowrequest.SlowRequestFilter.doFilter(SlowRequestFilter.java:37)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at io.jenkins.blueocean.ResourceCacheControl.doFilter(ResourceCacheControl.java:134)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:59)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
  	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
  	at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:88)
  	at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:114)
  	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
  	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:138)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:50)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
  	at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at jenkins.security.BasicHeaderProcessor.success(BasicHeaderProcessor.java:140)
  	at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:82)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
  	at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67)
  	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
  	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:90)
  	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
  	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
  	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
  	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
  	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
  	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:621)
  	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
  	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
  	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
  	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
  	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
  	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
  	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
  	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
  	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
  	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
  	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  	at java.lang.Thread.run(Thread.java:745)
  </pre></div></div></div><footer><div class="container-fluid"><div class="row"><div class="col-md-6" id="footer"></div><div class="col-md-18"><span class="page_generated">Page generated: Sep 25, 2019 1:46:26 PM CEST</span><span class="rest_api"><a href="api/">REST API</a></span><span class="jenkins_ver"><a href="https://jenkins.io/";>Jenkins ver. 2.89.2</a></span></div></div></div></footer></body></html>

  Other functions like disable_node, enable_node, get_node_list, etc are
  working fine, looks like thats the only what has issues.

  Do you have any idea whats causing this?

  Br,
  Tibor

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References

[Bug 1845320] [NEW] NullPointerException in the create_node function
From: Tibor Bodnar, 2019-09-25