The TTY interface of jdb prints "Not a valid thread ID" if the program
runs to completion without stopping.

This bug is fixed in the new Java Platform Debug Architecture.
JDB users will see this fix since JDB is now re-written as a JPDA
client. Note that no fix has been made to the sun.tools.debug
package; therefore, this bug will not appear to be fixed in
debugger applications which use sun.tools.debug directly.

Debugger application developers are strongly encouraged to migrate
from the sun.tools.debug package to the Java Debug Interface
provided by JPDA because it has a much more stable and robust
implementation.

gordon.hirsch@eng 1999-06-04