| System | Version | License |
|---|---|---|
| Xerces | 2.7.1 | Apache 2 License |
| ICU4J | 3.4 | IBM X License |
| JUnit | 3.8.1 | Common Public License Version 1.0 |
| Lucene | 2.3.1 | Apache 2 License |
| ANTLR | 2.7.5 | BSD-style license: ANTLR License page |
| Jakarta Commons Logging | 1.1.1 | Apache 2 License |
| Log4j | 1.2.12 | Apache 2 License |
| util.concurrent | 1.3.2 | Public Domain |
| WoodSToX StAX parser | StAX API 1.0 / Impl 3.0.0 | Apache 2 License (also available as LGPL) |
| JSON Java library | JSON License |
A local copy of the Apache 2 License is provided.
A local copy of the IBM X License is provided.