diff -r 000000000000 -r 959103a6100f test/tools/javac/6717241/T6717241b.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/6717241/T6717241b.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,18 @@
+/**
+ * @test /nodynamiccopyright/
+ * @bug     6717241
+ * @summary some diagnostic argument is prematurely converted into a String object
+ * @author  Maurizio Cimadamore
+ * @compile/fail/ref=T6717241b.out -XDrawDiagnostics T6717241b.java
+ */
+
+class T6717241b {
+    void test() {
+        //this will generate a 'cant.resolve.location'
+        Object o = v;
+        //this will generate a 'cant.resolve.location.args'
+        m1(1, "");
+        //this will generate a 'cant.resolve.location.args.params'
+        T6717241b.<Integer,Double>m2(1, "");
+    }
+}