We had something similar. Jenkins 2.7.3. After some experimentation, I
found that adding the empty tag:
<buildWrappers/>
right before the executionStrategy tag at the end of the config.xml, like
this:
.
.
.
<buildWrappers/>
<executionStrategy
class="hudson.matrix.DefaultMatrixExecutionStrategyImpl">
<runSequentially>false</runSequentially>
</executionStrategy>
</matrix-project>
and then reloading configuration from disk fixed the problem. The matrix
job now loaded.
On Friday, August 19, 2016 at 9:21:44 AM UTC-7, Gavin Williams wrote:
> Afternoon all
>
> I've just upgraded one of our Jenkins hosts from 1.6 to 2.18, and
> unfortunately it appears to have broken some of our Multi-configuration
> projects.
>
> Upon restarting Jenkins, the following is logged:
>
>> SEVERE: Failed Loading job Microservice_Matrix_Unit
>> java.lang.NullPointerException
>> at
>> hudson.matrix.MatrixProject.createTransientActions(MatrixProject.java:450)
>> at
>> hudson.model.AbstractProject.updateTransientActions(AbstractProject.java:756)
>> at
>> hudson.matrix.MatrixProject.updateTransientActions(MatrixProject.java:460)
>> at hudson.model.AbstractProject.onLoad(AbstractProject.java:340)
>> at hudson.matrix.MatrixProject.onLoad(MatrixProject.java:501)
>> at hudson.model.Items.load(Items.java:333)
>> at jenkins.model.Jenkins$17.run(Jenkins.java:2942)
>> at
>> org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
>> at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
>> at jenkins.model.Jenkins$7.runTask(Jenkins.java:1026)
>> at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
>> at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
>> at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> at java.lang.Thread.run(Thread.java:745)
>
>
> I've not found anything of any use whilst googling...
>
> Any ideas on how I can fix the jobs?
>
> Regards
> Gavin
>
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