XZ for Java 1.4 is available at <http://tukaani.org/xz/java.html> and in the Maven Central (groupId = org.tukaani, artifactId = xz). Here is an extract from the NEWS file:
* Add LZMAInputStream for decoding .lzma files and raw LZMA streams. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode
