[JIRA] [envinject] (JENKINS-24994) StringIndexOutOfBoundsException if build cause class is anonymous

Mon, 06 Oct 2014 13:47:37 -0700

Daniel Beck commented on Bug JENKINS-24994

Builds are stored as XML on disk in files called build.xml. If you create causes like that, they serialize a lot of garbage to disk, and are brittle in the face of code changes. I replaced the cause of ParameterizedJobMixin.scheduleBuild() (the overload without arguments) by something similar to your sample code, and this is what it looks like on disk:

      <causes>
        <jenkins.model.ParameterizedJobMixIn_-1>
          <outer-class class="hudson.model.AbstractProject$2">
            <outer-class class="hudson.model.FreeStyleProject">
              <actions/>
              <description></description>
              <keepDependencies>false</keepDependencies>
              <properties/>
              <scm class="hudson.scm.NullSCM"/>
              <canRoam>true</canRoam>
              <disabled>false</disabled>
              <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
              <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
              <triggers/>
              <concurrentBuild>false</concurrentBuild>
              <builders/>
              <publishers/>
              <buildWrappers/>
            </outer-class>
          </outer-class>
        </jenkins.model.ParameterizedJobMixIn_-1>
      </causes>


Note that the demo job I used is empty, and this would contain the entire XML configuration at the time the cause was serialized, because it's defined inside ParameterizedJobMixIn and inherits the outer classes' environment. It deserializes a separate instance of the outer class as well that is different from the regularly loaded instance.



I think it's pointless to fix this issue, as any implementations of anonymous inner classes suffer from similar problems, making them into bugs waiting to happen that should be avoided. You should probably check to see which of these issues affect the plugin you're using and report issues against it.



Resolve as Won't Fix?
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