no ocijdbc11 in java.library.path linux
vi /etc/profile
export ORACLE_HOME=/oracle/database/oracle/product/11.2.0.4/db_1
export PATH=$PATH:$ORACLE_HOME/bin
export TNS_ADMIN=$ORACLE_HOME/network/admin
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/oracle/database/oracle/product/11.2.0.4/db_1/lib/libocijdbc11.so
export LD_LIBRARY_PATH