glassfish

Oracle has won approval from the U.S. government for their purchase of Sun (formerly Sun Microsystems). The deal is still subject to approval by the European Commission(EU). Oracle said they expect the deal to close by August 31 (2009).

I don't own stock in either company, but I'm interested to see what happens to many different Sun products, including:

Question: What is the command to change my Glassfish admin (administrator) password?

Answer: You can change the Glassfish admin password with this asadmin command:

asadmin change-admin-password

The Glassfish master password

Note that you can also change the Glassfish master password with this command:

asadmin change-master-password

JSP URI/URL FAQ: How do I get a URI or URL from a JSP (the request URI or request URL)?

I was just working with a JSP, and trying to remember how to get information that can be very helpful inside of a JSP, specifically how to determine the Context, URI, and URL from within a JSP.

To that end, here's the Java source code for a JSP I wrote that will display the Context, URI, and URL for this JSP when it is accessed from a browser:

This OpenSSO tutorial is probably the best "getting started with OpenSSO" tutorial around, but I'll add one caveat to it: Until you know what you're doing, just follow this tutorial to the letter, and I mean to the letter. Specifically, when they say "use Glassfish", you want to use Glassfish, and not something else, like Tomcat.

A lot of times when you're working on a Java web application you only need to deploy your JSP files. This happens, for instance, when you're just editing the JSP files to modify the look and feel of your web application. In cases like this there's no need to rebuild your entire application, deploy it, then restart your application server (Tomcat, Glassfish, JBoss, whatever).