Updating a JAR

 Whenever you modify source code whose compiled classes are part of a particular JAR, you can easily update that JAR without rebuilding it from scratch.
  1. Make sure the JAR you want to update is not explicitly listed in your CLASSPATH. If it is, the update procedure will update the JAR's contents with the same files.

    If you need to, you can easily view and edit your CLASSPATH.

  2. Select or open the JAR you want to update.

  3. Click Tools, then Update Jar.

    JarMaster takes each class in your JAR and compares it to those found in the JARs and paths listed in your CLASSPATH. If any newer classes are found, they replace those found in your JAR. (The first class JarMaster comes across replaces the old one.)

    Once the JAR has been updated, JarMaster automatically saves the changes. This updates the JAR content information, including file size and ratio.