Liblinear is available via the official Maven repository.
The usage is pretty similar to the
C++ library version.
$ java -cp liblinear-java-2.21.jar de.bwaldvogel.liblinear.Train -v 5 rcv1_train.binary
nSV = 6020
time: 935 ms
Cross Validation Accuracy = 97.0112%
There is a Weka wrapper that can be installed using the Weka Package Manager.