title: What are the implications of having duplicate classes in java jar?
body: <p>I am building java jar file using ant. I need to include additional jars using "zipfileset src="xxx.jar"  "zipfileset src="yyy.jar" and both xxx.jar and yyy.jar have the classes with the SAME fully-qualified class names. So the resulting jar file has duplicate class names. What are the possible implications of having duplicates?</p>
  
  <p>Thank you.</p>