Licenses:

htmlparser.jar version 1.6 is distributed under the GNU Lesser  
General Public License version 2.1 and greater
Sources are available in OmegaT sources, in the directory lib/sources

jna.jar is distributed under the GNU Lesser General Public License  
version 2.1 and greater
Sources are available in OmegaT sources, in the directory lib/sources

vldocking-3.0.5-SNAPSHOT.jar is distributed under the GNU Lesser General
Public License
Sources are available in OmegaT sources, in the directory lib/sources

Hunspell is distributed under the GNU Lesser General Public License  
version 2.1 and greater, the GNU Public License version 2.0 and  
greater or the Mozilla Public License version 1.1
Sources are available in OmegaT sources, in the directory lib/sources
Some Hunspell librairies may correspond to older versions
Sources are all available from
https://sourceforge.net/project/showfiles.php?group_id=143754&package_id=157912

swing-layout-1.0.4.jar is distributed under the GNU Lesser General  
Public License version 2.1.
Sources are available in OmegaT sources, in the directory lib/sources

jmyspell-core-1.0.0-beta-2-1.4.jar is distributed under the 
GNU Lesser General Public License version 2.1 and greater
Sources are available in OmegaT sources, in the directory lib/sources

svnkit-1.8.5.jar is distributed under the
TMate Open Source / Commercial dual license
(required for SVNRemoteRepository.java)

sequence-library-1.0.2.jar is distributed under the Sequence Library License
(required for SVNRemoteRepository.java)

antlr-runtime-3.4.jar is distributed under the ANTLR 3 License
(required for SVNRemoteRepository.java)

sqljet-1.1.10.jar is distributed under the GNU General Public License version 2
(required for SVNRemoteRepository.java)
Sources are available in OmegaT sources, in the directory lib/sources

org.eclipse.jgit-3.7.1.201504261725-r.jar is distributed under the
Eclipse Distribution License (EDL) v 1.0 
(required for GITRemoteRepository.java)

jsch-0.1.49.jar is distributed under the JSch License
(required for GITRemoteRepository.java)

Base64 is public domain and is included in OmegaT sources

diff.jar is distributed under the GNU General Public License version 1 and greater
Sources are available in OmegaT sources, in the directory lib/sources

trilead-ssh2-1.0.0-build217.jar is distributed under the Trilead SSH license

lucene-*.jar are distributed under the Apache License 2.0

The English tokenizers (org.omegat.tokenizer.SnowballEnglishTokenizer and
org.omegat.tokenizer.LuceneEnglishTokenizer) use stop words originally from Okapi
(http://okapi.sourceforge.net) under the LGPL license.

tinysegmenter.jar is distributed under the Modified BSD license

commons-*.jar are distributed under the Apache License 2.0
(required for LanguageTool and some parts of OmegaT)

jwordSplitter-3.4.jar is distributed under the Apache License 2.0
(required for LanguageTool)

LanguageTool-data.jar and languagetool-core-2.2.jar are distributed under the LGPL license
LanguageTool sources are available from https://github.com/languagetool-org/languagetool

morfologik-*.jar is distributed under the Morfologik license
(required for LanguageTool)

segment-1.4.1.jar is distributed under the Segment license
(required for LanguageTool)

lucene-gosen-2.0.2-ipadic.jar is distributed under the LGPL license
(required for LanguageTool)
lucene-gosen sources are available via SVN from http://code.google.com/p/lucene-gosen/source/checkout

pdfbox-app-1.8.1.jar is distributed under the Apache License 2.0

groovy-all-2.2.2.jar is distributed under the Apache License 2.0
(required for scripting)

SuperTMXMerge-for_OmegaT.jar is distributed under the GNU Lesser General  
Public License version 2.1 and greater
Sources are available in OmegaT sources, in the directory lib/sources

OmegaT code uses the method createTempDir from Google Guava
(https://code.google.com/p/guava-libraries/), licensed under the Apache License 2.0.

slf4j-*.jar is distributed under the MIT License.

OmegaT uses icons from the Modern UI Icons project. See ModernUIIcons-license.txt.

juniversalchardet-1.0.3.jar is distributed under the GNU Lesser General
Public License version 2.1 and greater, the GNU Public License version 2.0
and greater or the Mozilla Public License version 1.1.
Sources are available in OmegaT sources, in the directory lib/sources

JTextPaneLinkifier uses a regex from dperini/regex-web.js (https://gist.github.com/dperini/729294)
under the MIT License.

dictzip.jar is distributed under the GNU General Public License version 2.0
and greater. It is a part of JDict v1.5 and its sources are available in OmegaT
sources, in lib/sources/

StringUtil uses code from the FullWidthConversionStep in the Okapi Framework
(http://okapi.opentag.com/) under the GNU Public License version 2.1 or greater.
