diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
index 2ab2b43..d4d9a97 100644
--- a/src/hotspot/share/oops/instanceKlass.cpp
+++ b/src/hotspot/share/oops/instanceKlass.cpp
@@ -1081,7 +1081,6 @@ void InstanceKlass::set_implementor(Klass* k) {
 }
 
 int  InstanceKlass::nof_implementors() const {
-  assert_lock_strong(Compile_lock);
   Klass* k = implementor();
   if (k == NULL) {
     return 0;
diff --git a/src/hotspot/share/utilities/vmError.cpp b/src/hotspot/share/utilities/vmError.cpp
index fd13ca3..061ebef 100644
--- a/src/hotspot/share/utilities/vmError.cpp
+++ b/src/hotspot/share/utilities/vmError.cpp
@@ -1767,3 +1767,4 @@ void VMError::controlled_crash(int how) {
   ShouldNotReachHere();
 }
 #endif // !PRODUCT
+