diff --git a/src/share/vm/gc_implementation/g1/elasticHeap.cpp b/src/share/vm/gc_implementation/g1/elasticHeap.cpp
index 940f818fd9dc741b3af5a499ce7d2fcd036f412a..60af0db80dd81fd954bb6753f2171c7dc7ac44c0 100644
--- a/src/share/vm/gc_implementation/g1/elasticHeap.cpp
+++ b/src/share/vm/gc_implementation/g1/elasticHeap.cpp
@@ -290,7 +290,7 @@ Monitor*    ElasticHeapTimer::_monitor = NULL;
 
 bool ElasticHeapTimer::has_error(TRAPS, const char* error) {
   if (HAS_PENDING_EXCEPTION) {
-    tty->print_cr(error);
+    tty->print_cr("%s", error);
     java_lang_Throwable::print(PENDING_EXCEPTION, tty);
     tty->cr();
     CLEAR_PENDING_EXCEPTION;
diff --git a/src/share/vm/jfr/periodic/jfrThreadCPULoadEvent.cpp b/src/share/vm/jfr/periodic/jfrThreadCPULoadEvent.cpp
index 2b049dd411ba5d36208f09b11e09ef6714b81eb0..08c67525e34096629bf66f6a56c5ad597d2ec61d 100644
--- a/src/share/vm/jfr/periodic/jfrThreadCPULoadEvent.cpp
+++ b/src/share/vm/jfr/periodic/jfrThreadCPULoadEvent.cpp
@@ -127,7 +127,7 @@ void JfrThreadCPULoadEvent::send_events() {
     }
     jt = jt->next();
   }
-  log_trace(jfr)("Measured CPU usage for %d threads in %.3f milliseconds", thread_count,
+  log_trace(jfr)("Measured CPU usage for " SIZE_FORMAT " threads in %.3f milliseconds", thread_count,
     (double)(JfrTraceTime::now() - event_time) / (JfrTraceTime::frequency() / 1000));
   // Restore this thread's thread id
   periodic_trace_data->set_thread_id(periodic_thread_id);
diff --git a/src/share/vm/jfr/utilities/jfrJavaLog.cpp b/src/share/vm/jfr/utilities/jfrJavaLog.cpp
index bead06b690de04b45b50def09d60c886083cdaf7..9d693d39c89241867f1d594033d03309ce8244bd 100644
--- a/src/share/vm/jfr/utilities/jfrJavaLog.cpp
+++ b/src/share/vm/jfr/utilities/jfrJavaLog.cpp
@@ -39,25 +39,25 @@ void JfrJavaLog::log(jint tag_set, jint level, jstring message, TRAPS) {
   ResourceMark rm(THREAD);
   const char* const s = JfrJavaSupport::c_str(message, CHECK);
   assert(s != NULL, "invariant");
-  
+
   switch(level) {
   case LogLevel::Off:
     break;
   case LogLevel::Trace:
-    log_trace(jfr)(s);
+    log_trace(jfr)("%s", s);
     break;
   case LogLevel::Debug:
-    log_debug(jfr)(s);
+    log_debug(jfr)("%s", s);
     break;
   case LogLevel::Info:
-    log_info(jfr)(s);
+    log_info(jfr)("%s", s);
     break;
   case LogLevel::Warning:
-    log_warning(jfr)(s);
+    log_warning(jfr)("%s", s);
     break;
   case LogLevel::Error:
-    log_error(jfr)(s);
-    break;  
+    log_error(jfr)("%s", s);
+    break;
   default:
     break;
   }