--- old/src/hotspot/share/ci/ciStreams.hpp	2019-03-11 14:25:29.490355662 +0100
+++ new/src/hotspot/share/ci/ciStreams.hpp	2019-03-11 14:25:29.286355665 +0100
@@ -221,6 +221,7 @@
   // or checkcast, get the referenced klass.
   ciKlass* get_klass(bool& will_link);
   int get_klass_index() const;
+  bool is_klass_never_null() const;
 
   // If this bytecode is one of the ldc variants, get the referenced
   // constant.  Do not attempt to resolve it, since that would require
@@ -287,6 +288,14 @@
     }
   }
 
+  bool is_never_null() {
+    if (at_return_type()) {
+      return _sig->returns_never_null();
+    } else {
+      return _sig->is_never_null_at(_pos);
+    }
+  }
+
   // next klass in the signature
   ciKlass* next_klass() {
     ciKlass* sig_k;