diff -r 98122e719d19 -r 4832491d1376 lib/Tools/process
--- a/lib/Tools/process	Thu Mar 10 22:21:01 2016 +0100
+++ b/lib/Tools/process	Thu Mar 10 22:49:15 2016 +0100
@@ -19,4 +19,4 @@
 
 mkdir -p "$ISABELLE_TMP_PREFIX" || exit $?
 
-isabelle java isabelle.ML_Process "$@"
+exec isabelle java isabelle.ML_Process "$@"