UnsatisfiedLinkError exception loading native library: njni11

Installing Oracle 11g on Linux
[Oracle Net Services configuration failed.]

$./netca
Error message:
UnsatisfiedLinkError exception loading native library: njni11

java.lang.UnsatisfiedLinkError: jniGetOracleHome
at oracle.net.common.NetGetEnv.jniGetOracleHome(Native Method)
at oracle.net.common.NetGetEnv.getOracleHome(Unknown Source)
at oracle.net.ca.NetCA.main(Unknown Source)
Oracle Net Services configuration failed. The exit code is -1

Solution:
sudo apt-get install build-essential libaio1 gawk ksh