#9 Compile fails for j2sdk1.4.2 and ant <= 1.54

[Sven Helmberger]

if you get compile errors like

BUILD FAILED
java.lang.NoSuchMethodError:
com.sun.tools.javah.Main.<init>([Ljava/lang/String; )V

it's because Sun decided to get rid of a Constructor
which is called from the Javah-Task.

You can install a nightly build of ant to fix this or
you replace $SOURCE_ROOT/src/java/build.xml file with
the attached file.

(replaced the javah-Task with and equivalent exec-Task)

this is only needed for ant versions up to and
including 1.5.4
as further versions will be fixed in this regard.

[Sven Helmberger]