title: Multiple runs of same jar file has an affect to each other?
body: <p>I have one jar on my linux machine. Usually the jar runs alone but sometimes I have to start the same jar with different args. Means two instances of the application are running at the same time. The application hits the DB and has also some actions on File system like creating files and folders. 
  My Problem is, if both jars are running, the creating of the files and folders on file system have an effect on each other. This means, some folders are saved on the wrong place and so on. Also if both instances of the application have complete different folder structure.</p>
  
  <p>So is it more a problem regarding the JVM or more a programmatic problem?</p>
  
  <p>The call for the start of the jars is <code>java -jar app.jar</code></p>