title: Jenkins IllegalArgumentException while adding a new slave
body: <p>I want to add a new slave to Jenkins. When I followed the Jenkins UI, it gives me the command below</p>
  
  <pre><code>java -jar agent.jar -jnlpUrl http://&lt;jenkins_url&gt;/computer/&lt;slave_name&gt;/slave-agent.jnlp -secret 4b59708a20e155c8ccb39f1fb046be09f72c712ed839401195c475d5fdb2b0e5
  </code></pre>
  
  <p>When I tried to execute that command, its output like below:</p>
  
  <pre><code>Exception in thread "main" java.lang.IllegalArgumentException: IV buffer too short for given offset/length combination
          at javax.crypto.spec.IvParameterSpec.&lt;init&gt;(IvParameterSpec.java:80)
          at hudson.remoting.Launcher.parseJnlpArguments(Launcher.java:515)
          at hudson.remoting.Launcher.run(Launcher.java:325)
          at hudson.remoting.Launcher.main(Launcher.java:283)
  </code></pre>
  
  <p>Could you please help me about this error? Any help will be appreciated. Thanks in advance. </p>
  
  <p>Best Regards.</p>