--- old/src/hotspot/share/runtime/serviceThread.cpp	2018-08-01 11:19:13.000000000 -0500
+++ new/src/hotspot/share/runtime/serviceThread.cpp	2018-08-01 11:19:12.000000000 -0500
@@ -24,6 +24,7 @@
 
 #include "precompiled.hpp"
 #include "classfile/stringTable.hpp"
+#include "classfile/symbolTable.hpp"
 #include "runtime/interfaceSupport.inline.hpp"
 #include "runtime/javaCalls.hpp"
 #include "runtime/serviceThread.hpp"
@@ -84,6 +85,7 @@
     bool has_dcmd_notification_event = false;
     bool acs_notify = false;
     bool stringtable_work = false;
+    bool symboltable_work = false;
     JvmtiDeferredEvent jvmti_event;
     {
       // Need state transition ThreadBlockInVM so that this thread
@@ -101,7 +103,8 @@
              !(has_jvmti_events = JvmtiDeferredEventQueue::has_events()) &&
               !(has_gc_notification_event = GCNotifier::has_event()) &&
               !(has_dcmd_notification_event = DCmdFactory::has_pending_jmx_notification()) &&
-              !(stringtable_work = StringTable::has_work())) {
+              !(stringtable_work = StringTable::has_work()) &&
+              !(symboltable_work = SymbolTable::has_work())) {
         // wait until one of the sensors has pending requests, or there is a
         // pending JVMTI event or JMX GC notification to post
         Service_lock->wait(Mutex::_no_safepoint_check_flag);
@@ -116,6 +119,10 @@
       StringTable::do_concurrent_work(jt);
     }
 
+    if (symboltable_work) {
+      SymbolTable::do_concurrent_work(jt);
+    }
+
     if (has_jvmti_events) {
       jvmti_event.post();
     }