Add a class that has been loaded and is contained in some existing JAR.
Add the class files found in a given directory
Add a single class to the JAR where its bytecode is given directly.
Add the entire contents of a JAR that contains a particular class.
Merge in the contents of an entire JAR.
Add a class to the JAR that was generated at runtime.
Write-out the JAR file.
Write-out the JAR file. Once this method is called, the JAR cannot be modified further.
Class to manage the creation of a new JAR file.