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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Multi-release JAR files [JEP-238]

The JAR file format has been extended in the Java 9 platform and now permits multiple versions of class files to exist in a single JAR file. The class versions can be specific to a Java release version. This enhancement allows developers to use a single JAR file to house multiple releases of their software.

The JAR file enhancement includes the following:

  • Support for the JarFile API
  • Support for standard class loaders

The changes to the JAR file format resulted in necessary changes to core Java tools so that they are able to interpret the new multiple-release JAR files. These core tools include the following:

  • javac
  • javap
  • jdeps

Finally, the new JAR file format supports modularity as the key characteristic ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page