title: Create Runnable JAR with .properties files using Java Eclipse
body: <p>I'm trying to build a runnable JAR using Eclipse's Export function. everything works fine except several .properties files I have under the root directory.</p>
  
  <p>I added all the .properties files into Build Path, and they appears under 'Order and Export' tab in Java Build Path dialog.</p>
  
  <p>However, when I try to run the Export, I got the following errors:</p>
  
  <p>Could not read JAR file 'log4j.properties'. Reason: error in opening zip file
      error in opening zip file
      error in opening zip file</p>
  
  <p>The Runnable JAR file is actually created, but with no .properties files in it. why does it try to export .properties files as ZIP files? how to make this work?</p>
  
  <p>Eclipse Build id: 20090621-0832</p>