TJLAN (source and binary) is available on https://svn.alfresco.com/repos/alfresco-open-mirror/services/jlan/
but the JAR file jars/alfresco-jlan.jar is not the right one. It has to be rebuild by the following steps:

1. svn export https://svn.alfresco.com/repos/alfresco-open-mirror/services/jlan/tags/<latest version>/alfresco-jlan
2. Modify build.xml: For the javac task of target 'createJar' add the following attributes:
    source='1.7' target='1.7'
3. ant -f build.xml

Step 2 is only necessary if the default Java 1.7 is needed but the Java compiler compiles already for 1.8.