[JENKINS-799] NPE in hudson.model.ExternalJob.newBuild(ExternalJob.java:47)

[jenkins-infra-bot]

I found an NPE while trying to monitor an external process as described here:

• https://hudson.dev.java.net/cron.html
  *
  http://hudson.gotdns.com/wiki/display/JENKINS/Monitoring+external+jobs#Monitoringexternaljobs-Monitoringcronjobs

example batch file:
{{{
#!/bin/sh

echo "hello"
}}}

(after copying graph-layouter-1.0-jdk14.jar, servlet-api-2.4.jar to the same dir
as hudson-core-1.136.jar...)

output from run:
{{{
$ java -jar hudson-core-1.136.jar "import" hello.sh
Sep 6, 2007 6:07:35 PM hudson.TcpSlaveAgentListener
INFO: JNLP slave agent listener started on TCP port 40260
Sep 6, 2007 6:07:36 PM hudson.model.Hudson load
INFO: Took 192 ms to load
java.lang.NullPointerException
at hudson.model.ExternalJob.newBuild(ExternalJob.java:47)
at hudson.Main.localPost(Main.java:70)
at hudson.Main.run(Main.java:49)
at hudson.Main.main(Main.java:32)
}}}

I'm not sure which 'Subcomponent' this issue belongs to either... looking for
something like 'main/core/' but didn't find it.

---

Originally reported by davidjdavis, imported from: NPE in hudson.model.ExternalJob.newBuild(ExternalJob.java:47)

• status: Closed
• priority: Major
• component(s): other
• resolution: Won't Fix
• resolved: 2007-09-10T22:11:02+00:00
• votes: 0
• watchers: 0
• imported: 2025-12-08

Raw content of original issue

I found an NPE while trying to monitor an external process as described here:

	
https://hudson.dev.java.net/cron.html
 *
http://hudson.gotdns.com/wiki/display/JENKINS/Monitoring+external+jobs#Monitoringexternaljobs-Monitoringcronjobs



example batch file:
{{{
#!/bin/sh

echo "hello"
}}}

(after copying graph-layouter-1.0-jdk14.jar, servlet-api-2.4.jar to the same dir
as hudson-core-1.136.jar...)

output from run:
{{{
$ java -jar hudson-core-1.136.jar "import" hello.sh
Sep 6, 2007 6:07:35 PM hudson.TcpSlaveAgentListener <init>
INFO: JNLP slave agent listener started on TCP port 40260
Sep 6, 2007 6:07:36 PM hudson.model.Hudson load
INFO: Took 192 ms to load
java.lang.NullPointerException
        at hudson.model.ExternalJob.newBuild(ExternalJob.java:47)
        at hudson.Main.localPost(Main.java:70)
        at hudson.Main.run(Main.java:49)
        at hudson.Main.main(Main.java:32)
}}}

I'm not sure which 'Subcomponent' this issue belongs to either... looking for
something like 'main/core/' but didn't find it.

• environment: Platform: PC, OS: Linux

[jenkins-infra-bot]

davidjdavis:

• Original comment link
• Raw content of original comment:

  I forgot to mention that HUDSON_HOME was set to a local directory:
  {{{
  $ export HUDSON_HOME=/tmp/hudson
  }}}
  
  I also found that when HUDSON_HOME=http://localhost:8080/hudson, everthing
  worked fine, as expected.
  

I forgot to mention that HUDSON_HOME was set to a local directory:
{{{
$ export HUDSON_HOME=/tmp/hudson
}}}

I also found that when HUDSON_HOME=http://localhost:8080/hudson, everthing
worked fine, as expected.

[jenkins-infra-bot]

kohsuke:

• Original comment link
• Raw content of original comment:

  HUDSON_HOME as local file path just doesn't work very well anyway. Doc has been
  talking about using HTTP, so I'm removing it from 1.137.
  

HUDSON_HOME as local file path just doesn't work very well anyway. Doc has been
talking about using HTTP, so I'm removing it from 1.137.