Which Java OTR library should I choose? [closed]

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I want to add OTR (Off the record) Messaging into my (XMPP) chat application, which is written in java. A quick google search showed at least two possible libraries:

• java-otr: http://www.cypherpunks.ca/otr/index.php#downloads that is the one gibberbot uses, last change Oct 2009
• otr4j: http://code.google.com/p/otr4j/ - last change Aug 2010

Short question: Which one should I choose?

Long question: The library should of course provide a decent level of interoperability, so that the OTR messaging works with the various XMPP client that are out there. Also some pros/cons of the library you suggest would be nice. Basically everything that could be interesting for me. :)

Answer 1

Besides the original from cypherpunks which seemed to be the way to go a few years ago, there is also a maintained version at https://github.com/otr4j/otr4j (See Hans-Christoph Steiner's comment).