lib/Tools/java

handle Perl and "libwww-perl" failures more gracefully, giving the user some clues about what goes on

#!/usr/bin/env bash
#
# Author: Makarius
#
# DESCRIPTION: invoke Java within the Isabelle environment

CLASSPATH="$(jvmpath "$CLASSPATH")"
exec "${THIS_JAVA:-$ISABELLE_JAVA}" "$@"