java -version are different in user and root terminal
Solution 1:
I would guess that it is caused by incorrect $PATH setting, so java is first searched in /opt/IBM/ace-11.0.0.12/common/jdk/jre/bin/ instead of standard /usr/bin/java.
You can check your path echo
echo $PATH
and compare output from root / non-root terminals. Then you would need to check where additional entry is added (common suspects are /etc/profile, ~/.bash_profile, ~/.bashrc, ~/.bash_login and ~/.profile)