8037157: Verify <init> call

Summary: Check for null method
Reviewed-by: coleenp, acorn, mschoene

src/share/vm/classfile/verifier.cpp

@@ -2307,6 +2307,11 @@ void ClassVerifier::verify_invoke_init(
       Method* m = InstanceKlass::cast(ref_klass)->uncached_lookup_method(
         vmSymbols::object_initializer_name(),
         cp->signature_ref_at(bcs->get_index_u2()));
+      if (m == NULL) {
+        verify_error(ErrorContext::bad_code(bci),
+            "Call to missing <init> method");
+        return;
+      }
       instanceKlassHandle mh(THREAD, m->method_holder());
       if (m->is_protected() && !mh->is_same_class_package(_klass())) {
         bool assignable = current_type().is_assignable_from(