diff -r 92ab09ed59fd -r 2088e674f0e0 test/tools/javac/generics/6910550/T6910550b.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/generics/6910550/T6910550b.java	Fri Jan 28 12:01:07 2011 +0000
@@ -0,0 +1,16 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 6910550
+ *
+ * @summary javac 1.5.0_17 fails with incorrect error message
+ * @compile/fail/ref=T6910550b.out -XDrawDiagnostics T6910550b.java
+ *
+ */
+
+class T6910550b<X, Y, Z> {
+    void m(X x) {}
+    void m(Y y) {}
+    void m(Z y) {}
+
+    { m(null); }
+}