--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/file/BaseFileManager.java	Tue Jul 23 16:52:38 2019 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/file/BaseFileManager.java	Wed Sep 18 10:41:18 2019 +0200
@@ -198,6 +198,10 @@
         return locations.isDefaultBootClassPath();
     }
 
+    public boolean isDefaultSystemModulesPath() {
+        return locations.isDefaultSystemModulesPath();
+    }
+
     // <editor-fold defaultstate="collapsed" desc="Option handling">
     @Override @DefinedBy(Api.COMPILER)
     public boolean handleOption(String current, Iterator<String> remaining) {