lib/Tools/java

more direct bash process group invocation on Cygwin, bypassing extra sh.exe and perl.exe which tend to crash;

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

CLASSPATH="$(jvmpath "$CLASSPATH")"

if isabelle_jdk java -server >/dev/null 2>/dev/null; then
  SERVER="-server"
else
  SERVER=""
fi

isabelle_jdk java -Dfile.encoding=UTF-8 $SERVER \
  "-Djava.ext.dirs=$("$ISABELLE_HOME/src/Tools/JVM/java_ext_dirs")" "$@"