why matlab can run as './matlab -nodesktop', but hang at initializing??

My system is fedora 21_x64, my computer is Dell T630. Matlab can be opend and used as './matlab -nodesktop', but it will states 'initializing' using command './matlab'. I checked the jdk version of matlab and my system, and I let them the same through set a environment parameter: 'export MATLAB_JAVA=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.51/jre/' also I let the libstdc++ library used by matlab accord with system through : 'ln -sf /usr/lib64/libstdc++.so.6 /opt/matlab/sys/os/glnxa64/libstdc++.so.6'. but it still get stuck in the 'initializing'state while using command './matlab' directly,why.... It have troubled me a long long time. any help will be appreciated!

[Walter Roberson]

Mathworks offers free support for installation problems; you should contact them.

[Lion]

Thanks. I have send a message to 'matlab support team', but receive none answers.