• Icon: Task Task
    • Resolution: Fixed
    • Icon: Minor Minor
    • core, remoting
    • None
    • Remoting 3.32, jenkins-2.182

      Problem

      After an attempted upgrade of args4j in jenkinsci/swarm-plugin#120, the following exception was thrown:

      java.lang.IllegalStateException: Cannot set value to a final field 'hudson.remoting.jnlp.Main.urls'.
              at org.kohsuke.args4j.spi.Setters.create(Setters.java:32)
              at org.kohsuke.args4j.ClassParser.parse(ClassParser.java:34)
              at org.kohsuke.args4j.CmdLineParser.<init>(CmdLineParser.java:96)
              at org.kohsuke.args4j.CmdLineParser.<init>(CmdLineParser.java:71)
              at hudson.remoting.jnlp.Main._main(Main.java:215)
              at hudson.remoting.jnlp.Main.main(Main.java:188)
              at hudson.plugins.swarm.SwarmClient.connect(SwarmClient.java:325)
              at hudson.plugins.swarm.Client.run(Client.java:193)
              at hudson.plugins.swarm.Client.main(Client.java:130)
      

      Evaluation

      As of args4j 2.32, "final fields can no longer be set." If an args4j field is marked with the final keyword, an IllegalStateException is thrown.

      Solution

      Remove the final keyword from the fields that we expect args4j to set.

      Phase 1

      Implemented in jenkinsci/remoting#326. See the PR for testing done.

      Phase 2

      Once this change is merged and released, we can proceed with updating args4j in Jenkins core, which also involves updating the args4j dependency in Remoting. I'm explicitly postponing that work to a future PR, since at the present time Jenkins core is not using the latest version of Remoting due to a Remoting bug (see jenkinsci/jenkins#4047).

          [JENKINS-57959] Upgrade past args4j 2.32

          Basil Crow created issue -
          Basil Crow made changes -
          Status Original: Open [ 1 ] New: In Progress [ 3 ]
          Jeff Thompson made changes -
          Released As New: Remoting 3.32
          Resolution New: Fixed [ 1 ]
          Status Original: In Progress [ 3 ] New: Resolved [ 5 ]
          Jeff Thompson made changes -
          Resolution Original: Fixed [ 1 ]
          Status Original: Resolved [ 5 ] New: Reopened [ 4 ]
          Jeff Thompson made changes -
          Comment [ Remoting side is released in 3.32. Not yet included into master. ]
          Daniel Beck made changes -
          Released As Original: Remoting 3.32 New: Remoting 3.32, jenkins-2.182
          Resolution New: Fixed [ 1 ]
          Status Original: Reopened [ 4 ] New: Resolved [ 5 ]

            basil Basil Crow
            basil Basil Crow
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              Created:
              Updated:
              Resolved: