--- a/hotspot/src/share/vm/ci/ciKlass.cpp	Mon Sep 28 15:05:02 2015 +0200
+++ b/hotspot/src/share/vm/ci/ciKlass.cpp	Tue Sep 29 11:02:08 2015 +0200
@@ -66,8 +66,8 @@
 // ------------------------------------------------------------------
 // ciKlass::is_subtype_of
 bool ciKlass::is_subtype_of(ciKlass* that) {
-  assert(this->is_loaded(), err_msg("must be loaded: %s", this->name()->as_quoted_ascii()));
-  assert(that->is_loaded(), err_msg("must be loaded: %s", that->name()->as_quoted_ascii()));
+  assert(this->is_loaded(), "must be loaded: %s", this->name()->as_quoted_ascii());
+  assert(that->is_loaded(), "must be loaded: %s", that->name()->as_quoted_ascii());
 
   // Check to see if the klasses are identical.
   if (this == that) {
@@ -85,8 +85,8 @@
 // ------------------------------------------------------------------
 // ciKlass::is_subclass_of
 bool ciKlass::is_subclass_of(ciKlass* that) {
-  assert(this->is_loaded(), err_msg("must be loaded: %s", this->name()->as_quoted_ascii()));
-  assert(that->is_loaded(), err_msg("must be loaded: %s", that->name()->as_quoted_ascii()));
+  assert(this->is_loaded(), "must be loaded: %s", this->name()->as_quoted_ascii());
+  assert(that->is_loaded(), "must be loaded: %s", that->name()->as_quoted_ascii());
 
   VM_ENTRY_MARK;
   Klass* this_klass = get_Klass();