I am running the November build of Java Workshop 1.0, with patch 104371-01
installed on a Toshiba Tecra 700CT laptop running 2.5.1, DU6.

ID strings from "About Java Workshop":
Java Workshop 1.0 patch release A Tue Nov 19 09:21:24
Java Version: 1.0.2ss:10/25/96-13:39

I tried installing the just in time (JIT) compiler version of the JVM
from <http://www.sun.com/workshop/java/jit/>.

Now, I set up a project, go to build tool and hit the spanner
(initiate a build), and Java Workshop core dumps, with a message
"Abort(coredump)". core dump is from "java".

Same result if I set JAVA_COMPILER to "sunwjit" or do not set it.

Fixed by replacing java and java_g with the non-jit versions.