diff -r fc363a3b690a -r 678e1c9eb009 bin/isabelle_java
--- a/bin/isabelle_java	Thu Jul 15 16:35:45 2021 +0200
+++ b/bin/isabelle_java	Thu Jul 15 17:33:06 2021 +0200
@@ -18,7 +18,7 @@
 
   eval "declare -a JAVA_ARGS=($ISABELLE_JAVA_SYSTEM_OPTIONS $ISABELLE_TOOL_JAVA_OPTIONS)"
 
-  isabelle_setup_classpath
+  classpath "$ISABELLE_SETUP_CLASSPATH"
 
   [ -n "$CLASSPATH" ] && classpath "$CLASSPATH"