The acronym JEE is a actually a misnomer and its use should be discouraged. Quoting from the Java EE Platform Specification page:
There is nothing named JEE! Never use that name!
The correct short name is "Java EE"
When the enterprise Java platform was first introduced, it was called
"Java 2 Platform, Enterprise Edition", with the abbreviation "J2EE".
When we revised the naming of the Java platform, we didn't just drop
the "2".
One of the big reasons we changed the names of the platforms is
because we wanted to emphasize that they're all "Java". The old names
of "J2EE, "J2SE", and "J2ME" don't do that. Java is what's important
to us. Java is why we're here. Java is the value we share. We need to
make that clear to the world by talking about "Java EE".
Please, use only the correct name "Java EE". If that's too much to say
or type, call it "EE". (No, not "double-E".)
Related questions:
- What is Java EE?
- What exactly is Java EE?
- A summary of all Java EE specifications
Related content outside Stack Overflow:
- Java EE at a Glance
- Java EE 7 Specification APIs
- Java EE on Wikipedia
- Java EE 7 Documentation