title: executable jar file not running outside of the folder where I created it
body: <p>I created a jar file in my working folder</p>
  
  <blockquote>
    <p>jar -cfe MRMC.jar MRMC *.class *.jar DB statpack</p>
  </blockquote>
  
  <p>and I am able to double click the jar file or run it using 
  java -jar MRMC.jar </p>
  
  <p>But when I copy the jar file to another location, I can no longer run it. I got errors: </p>
  
  <p>Exception in thread "main" java.lang.NullPointerExeption</p>
  
  <p>it seems that the jar file did not find files in the resource folder DB above. </p>
  
  <p>Thank you. </p>