SSH Slaves plugin fails the host verification of slaves with an IllegalArgumentException

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      When we upgrade the ssh slaves plugin on the latest stable jenkins we get :

      ERROR: Unexpected error in launching a slave. This is probably a bug in Jenkins.
java.lang.IllegalArgumentException
  at com.trilead.ssh2.Connection.setServerHostKeyAlgorithms(Connection.java:1311)
  at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:796)
  at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:792)
  at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
[06/13/17 13:10:39] Launch failed - cleaning up connection
[06/13/17 13:10:39] [SSH] Connection closed.

       

        1. slave setting.png
          slave setting.png
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        2. known_hosts_on_master.png
          known_hosts_on_master.png
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        3. image-2017-06-13-16-27-57-910.png
          image-2017-06-13-16-27-57-910.png
          81 kB

            Assignee:
            Jesse Glick
            Reporter:
            IUGO Admin
            Archiver:
            Jenkins Service Account

              Created:
              Updated:
              Resolved:
              Archived: