Use Java or OpenJDK consistently throughout the guide

[ncbaratta]

QE by @judovana

3.5. Setting the JAVA_HOME environment variable on Red Hat Enterprise Linux

Some applications will require you to set the JAVA_HOME environment variable in order for the application to find your Java installation.
OpenJDK over Java please

[jerboaa]

@ncbaratta This is another one about terminology/consistency. I can change it to OpenJDK but I wonder what would be more user friendly. Users might know of Java, but not OpenJDK.

[jerboaa]

@ncbaratta I'll re-assign to you since this is a consistency issue and we should do this globally - over all files/modules - not individually.