Hello @luisfmfernandes,
I have solve the problem the app assumes that you have a 64 bit machine. I have a 32bit 
It will try to open file /usr/lib/jvm/java-7-openjdk-i386/jre/lib/amd64/server/libjvm.so that I do not have. I have /usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386/server/libjvm.so. I was able to upload the jxml file Thanks a lot for your patience!