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The Apache Harmony Project
TS-7820


Presenter: Tim Ellison, IBM UK Ltd.; Geir Magnusson, Jr., Apache Software Foundation


Apache Harmony is an effort of the Apache Software Foundation to build a compatible implementation of Java SE 5. The project's goals include creating an open, modular architecture that supports interoperability between multiple implementations of the Java virtual machine (VM) and multiple implementations of the Java SE class library. Defining a strong modular architecture enables a disparate set of developers to collaborate on producing a compliant Java technology implementation.

This presentation describes techniques for defining the major functional areas of Java SE and gives a status report on the implementation's progress to date. It shares some of the technical lessons learned in the Apache Harmony project to facilitate interoperability between open source and proprietary Java VMs and class library code. It demonstrates how the VM interface and class library architecture achieve the right degree of independence while ensuring that implementation choices are not compromised.

The presentation is of interest to practitioners and developers with an interest in open source innovation involving the Java platform and includes a demo of the Harmony code to date.

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