Report it here. These materials are copyrighted. The code uses constructs found in JDK 1.1 and some of it will not compile under JDK 1.0.2. Code that could not be placed in either DataStructures, Exception, or Supporting is in a directory for its particular chapter. It is my intention that all text code is somewhere.
Most data structures have a main included for testing.
Occasionally it seems that JDK 1.1 hangs when it is done reading input from the terminal, if there is not a quick write to the terminal. Sounds like a bug in the virtual machine.