--- a/src/hotspot/os/solaris/os_solaris.cpp	Fri May 18 12:45:05 2018 -0700
+++ b/src/hotspot/os/solaris/os_solaris.cpp	Fri May 18 15:56:42 2018 -0400
@@ -2124,7 +2124,7 @@
   memset(ourSigFlags, 0, sizeof(int) * (Maxsignum + 1));
 }
 
-void os::signal_init_pd() {
+static void jdk_misc_signal_init() {
   // Initialize signal semaphore
   sig_sem = new Semaphore();
 }
@@ -2134,7 +2134,7 @@
     Atomic::inc(&pending_signals[sig]);
     sig_sem->signal();
   } else {
-    // Signal thread is not created with ReduceSignalUsage and signal_init_pd
+    // Signal thread is not created with ReduceSignalUsage and jdk_misc_signal_init
     // initialization isn't called.
     assert(ReduceSignalUsage, "signal semaphore should be created");
   }
@@ -4243,6 +4243,10 @@
   Solaris::signal_sets_init();
   Solaris::init_signal_mem();
   Solaris::install_signal_handlers();
+  // Initialize data for jdk.internal.misc.Signal
+  if (!ReduceSignalUsage) {
+    jdk_misc_signal_init();
+  }
 
   // initialize synchronization primitives to use either thread or
   // lwp synchronization (controlled by UseLWPSynchronization)