diff --git a/src/share/vm/services/memTracker.hpp b/src/share/vm/services/memTracker.hpp
index 934daf06ab9c0187f9d463056d609ef211266ac7..ebcc41500d306451935da0b990d4b5af6d5977cd 100644
--- a/src/share/vm/services/memTracker.hpp
+++ b/src/share/vm/services/memTracker.hpp
@@ -86,13 +86,13 @@ class MemTracker : AllStatic {
 
    static inline void set_autoShutdown(bool value) { }
    static void shutdown(ShutdownReason reason) { }
-   static inline bool shutdown_in_progress() {  }
+   static inline bool shutdown_in_progress() { return false; }
    static bool print_memory_usage(BaselineOutputer& out, size_t unit,
-            bool summary_only = true) { }
+            bool summary_only = true) { return false; }
    static bool compare_memory_usage(BaselineOutputer& out, size_t unit,
-            bool summary_only = true) { }
+            bool summary_only = true) { return false; }
 
-   static bool wbtest_wait_for_data_merge() { }
+   static bool wbtest_wait_for_data_merge() { return false; }
 
    static inline void sync() { }
    static inline void thread_exiting(JavaThread* thread) { }