From Java Tutorial - Spring 1997 Part 1:Introduction to Java Language Peking Tutorial, Web Certificate -- Spring-Summer 1997. byNancy J. McCracken,Geoffrey C. Fox
Alpha release of Java/Hotjava included:
C source code for the Java interpreter (Virtual Machine)
Java foundation classes (base language support, I/O, networking, Internet protocols, windowing, graphics, utilities)
HotJava browser package used to build HotJava in Java. Includes 'hotjava' class which 'is' HotJava application.
In Short, Alpha Java/HotJava was a complete software release of all system components, free for research and subject to ($125K) licence for business use.