j2sdk1.4.0 jdbc compile errors

Hello,
I am attempting to build postgresql-7.2.1 with the jdbc,
using j2sdk1.4.0 to compile.  It is not working, as detailed
in the attached file.
If building with sun's sdk v. 1.3.1, it builds fine without
changing any configuration (classpath, etc.), just type
./configure --use-java
make

I have a question or two:
  Is it advantageous to use j2re1.3.1 over 1.4.0 after
having built with 1.3.1?
  Is it feasable, and/or a good idea to build with
j2sdk1.4.0, and is that a stable, reliable option?

Thanks,
Mark Price