This Friday (Feb 15th) we plan on making the glassfish3 to glassfish4
rename change:
http://java.net/jira/browse/GLASSFISH-19189
While the GlassFish code is install location independent, this change
will be disruptive for folks that have scripts, tests, etc that assume
"glassfish3" as the default installation directory. So you may want to
start looking at your scripts, etc and prepare for this change.
A few more details are available at this FAQ:
https://wikis.oracle.com/display/GlassFish/glassfish3+to+glassfish4+Rename
If the date changes for any reason we'll let you know.
Thanks in advance for your patience as we make this change.
Joe