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HotSwap provides a robust library for updating the implementation of an object at runtime (aka hotswapping). This is achieved through recompilation, dynamic class reloading, and object state migration throughout the life of an application. Hotswapping makes Java feel more like an interpreted language than a compiled language; it is fundamentally useful for runtime development of an application (application evolution or incremental development).


User's manual available in HTML format from


Download version 0.8.7 (beta)
released on 2 April 2003



LicenseVerified byVerified onNotes
LGPLJanet Casey2 April 2003

Leaders and contributors

Paul Johnston Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Weak prerequisite dot
Weak prerequisite convert (all for building user's manual); ant (to build the API documentation
Weak prerequisite run the examples
Weak prerequisite and rebuild the library from source)
Weak prerequisite texi2html
Required to use JDK 1.2
Weak prerequisite JDK 1.3 (for use of dynamic proxy classes); Perl

This entry (in part or in whole) was last reviewed on 2 April 2003.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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