[JENKINS-10182] NPE when requesting http://server/job/TEST-START/description and the description is empty

[jenkins-infra-bot]

I just checked out the API page http://server/job/TEST-START/api/?, and clicked on the link in the Similarly, this URL can be used to get and set just the job description. POST form data with a "description" parameter to set the description. section, ie http://server/job/TEST-START/description. As the description is empty (newly created project), i would expect an empty page and not a NPE.

This is the NullPointerException I got:

<title>Error 500</title>"#ffffff">
Status Code: 500
Exception: 
Stacktrace: 
java.lang.NullPointerException
	at java.io.PrintWriter.write(PrintWriter.java:429)
	at hudson.model.Job.doDescription(Job.java:1011)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:282)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:149)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:88)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:103)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:561)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:646)
	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:233)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:561)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:646)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:477)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:159)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
	at winstone.ServletConfiguration.execute(ServletConfiguration.java:249)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:335)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
	at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
	at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
	at java.lang.Thread.run(Thread.java:662)

"1" width="90%">Generated by Winstone Servlet Engine v0.9.10 at Fri Jul 01 07:33:51 CEST 2011

---

Originally reported by redsolo, imported from: NPE when requesting http://server/job/TEST-START/description and the description is empty

• status: Resolved
• priority: Minor
• component(s): core
• resolution: Fixed
• resolved: 2011-07-10T16:41:43+00:00
• votes: 0
• watchers: 0
• imported: 2025-11-24

Raw content of original issue

I just checked out the API page http://server/job/TEST-START/api/?, and clicked on the link in the Similarly, this URL can be used to get and set just the job description. POST form data with a "description" parameter to set the description. section, ie http://server/job/TEST-START/description. As the description is empty (newly created project), i would expect an empty page and not a NPE.

This is the NullPointerException I got:

<html><head><title>Error 500</title></head><body bgcolor="#ffffff"><h1>Status Code: 500</h1>Exception: <br>Stacktrace: <pre>java.lang.NullPointerException
	at java.io.PrintWriter.write(PrintWriter.java:429)
	at hudson.model.Job.doDescription(Job.java:1011)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:282)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:149)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:88)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:103)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:561)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:646)
	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:233)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:561)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:646)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:477)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:159)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
	at winstone.ServletConfiguration.execute(ServletConfiguration.java:249)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:335)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
	at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
	at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
	at java.lang.Thread.run(Thread.java:662)
</pre><br><hr size="1" width="90%"><i>Generated by Winstone Servlet Engine v0.9.10 at Fri Jul 01 07:33:51 CEST 2011</i></body></html>

environment

jenkins v1.409.1<br/>
linux

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   core/src/main/java/hudson/model/Job.java
   test/src/test/java/hudson/model/JobTest.java
  http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
  Log:
    Merge pull request #191 from redsolo/master
  
  [FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.
  
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
core/src/main/java/hudson/model/Job.java
test/src/test/java/hudson/model/JobTest.java
http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
Log:
Merge pull request #191 from redsolo/master

[FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   changelog.html
  http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
  Log:
    changelog for JENKINS-10182
  
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
changelog.html
http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
Log:
changelog for JENKINS-10182

[jenkins-infra-bot]

dogfood:

• Original comment link
• Raw content of original comment:

  Integrated in  jenkins_main_trunk #945
       [FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null
  changelog for JENKINS-10182
  
  eramfelt : ad413c55e3e787aa9c2424d7232864c7b95ee86b
  Files : 
  
  	
  test/src/test/java/hudson/model/JobTest.java
  	
  core/src/main/java/hudson/model/Job.java
  
  
  
  Olivier Lamy : a7324c9ff342787291a9098135cd73392bd14eca
  Files : 
  
  	
  changelog.html
  
  
  

Integrated in jenkins_main_trunk #945
[FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null
changelog for JENKINS-10182

eramfelt : ad413c55e3e787aa9c2424d7232864c7b95ee86b
Files :

• test/src/test/java/hudson/model/JobTest.java
• core/src/main/java/hudson/model/Job.java

Olivier Lamy : a7324c9ff342787291a9098135cd73392bd14eca
Files :

• changelog.html

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Erik Ramfelt
  Path:
   core/src/main/java/hudson/model/Job.java
   test/src/test/java/hudson/model/JobTest.java
  http://jenkins-ci.org/commit/jenkins/ad413c55e3e787aa9c2424d7232864c7b95ee86b
  Log:
    [FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null
  
  
  

Code changed in jenkins
User: Erik Ramfelt
Path:
core/src/main/java/hudson/model/Job.java
test/src/test/java/hudson/model/JobTest.java
http://jenkins-ci.org/commit/jenkins/ad413c55e3e787aa9c2424d7232864c7b95ee86b
Log:
[FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   core/src/main/java/hudson/model/Job.java
   test/src/test/java/hudson/model/JobTest.java
  http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
  Log:
    Merge pull request #191 from redsolo/master
  
  [FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
core/src/main/java/hudson/model/Job.java
test/src/test/java/hudson/model/JobTest.java
http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
Log:
Merge pull request #191 from redsolo/master

[FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   changelog.html
  http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
  Log:
    changelog for JENKINS-10182
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
changelog.html
http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
Log:
changelog for JENKINS-10182

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Erik Ramfelt
  Path:
   core/src/main/java/hudson/model/Job.java
   test/src/test/java/hudson/model/JobTest.java
  http://jenkins-ci.org/commit/jenkins/ad413c55e3e787aa9c2424d7232864c7b95ee86b
  Log:
    [FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null
  
  
  

Code changed in jenkins
User: Erik Ramfelt
Path:
core/src/main/java/hudson/model/Job.java
test/src/test/java/hudson/model/JobTest.java
http://jenkins-ci.org/commit/jenkins/ad413c55e3e787aa9c2424d7232864c7b95ee86b
Log:
[FIXED JENKINS-10182] Used Util.fixNull() to handle the case when a jobs description is null

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   core/src/main/java/hudson/model/Job.java
   test/src/test/java/hudson/model/JobTest.java
  http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
  Log:
    Merge pull request #191 from redsolo/master
  
  [FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
core/src/main/java/hudson/model/Job.java
test/src/test/java/hudson/model/JobTest.java
http://jenkins-ci.org/commit/jenkins/4c580ebdfeb7677687ff0735162349f661abc22e
Log:
Merge pull request #191 from redsolo/master

[FIXED JENKINS-10182] - Fixed NPE for Job.doDescription() when description is NULL.

[jenkins-infra-bot]

scm_issue_link:

• Original comment link
• Raw content of original comment:

  Code changed in jenkins
  User: Olivier Lamy
  Path:
   changelog.html
  http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
  Log:
    changelog for JENKINS-10182
  
  
  

Code changed in jenkins
User: Olivier Lamy
Path:
changelog.html
http://jenkins-ci.org/commit/jenkins/a7324c9ff342787291a9098135cd73392bd14eca
Log:
changelog for JENKINS-10182