title: couldn't destroy threadgroup org.codehaus.mojo.exec.ExecJavaMojo$IsolatedThreadGroup[name=SitemapCheck.SitemapAction,maxpri=10]
body: <p>I have java maven project which is working fine in my computer but when i upload this project to the ubuntu server and trying to run it on command line using following command its give me error.</p>
  
  <p><strong>Command line code:</strong></p>
  
  <pre><code>mvn exec:java -Dexec.mainClass=SitemapCheck.SitemapAction
  </code></pre>
  
  <p><strong>Its give me error Like</strong></p>
  
  <pre><code>[WARNING] NOTE: 2 thread(s) did not finish despite being asked to  via interruption. This is not a problem with exec:java, it is a problem with the running code. Although not serious, it should be remedied.
  [WARNING] Couldn't destroy threadgroup org.codehaus.mojo.exec.ExecJavaMojo$IsolatedThreadGroup[name=SitemapCheck.SitemapAction,maxpri=10]
  java.lang.IllegalThreadStateException
          at java.lang.ThreadGroup.destroy(ThreadGroup.java:778)
          at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:321)
          at
  </code></pre>
  
  <p>After search on the internet i found one solution but unfortunately its not working</p>
  
  <pre><code> cleanupDaemonThreads = false
  </code></pre>
  
  <p>Can anyone please suggest me how can i fixed the error?</p>