Running "jni" module tests (as well as just using this module) requires

being able to load libjvm.so, which requires path to it set via

LD_LIBRARY_PATH environment variable. This path is not set automatically

and there is no easy way to guess it, because there can be installed

different implementations of JVM, for one implementation, there can be

different versions, and single version may include different variants

of JVM.

For example, for OpenJDK 7 on x86_64, following may work:

LD_LIBRARY_PATH=/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server ./run-tests.py jni/*.py