So look like not so easy to build Derby after all :-)
Hi Oskar,
Derby is expected to run on CDC/FP 1.1, Java 5, Java 6, Java 7, and
(soon) Java 8. On each platform Derby is supposed to present the JDBC
api appropriate to that level of Java. This makes the Derby build a bit
involved. The instructions for building Derby can be found at the top of
the subversion source in BUILDING.html. If you're not having any luck
setting j16lib, the next line of attack is generally to set
java16compile.classpath. As Kathey said, setting
"printCompilerProperties=true" will give you diagnostic information to
help us diagnose what's peculiar about your environment.
Hope this helps,
-Rick