--- a/jdk/src/jdk.crypto.mscapi/windows/classes/sun/security/mscapi/SunMSCAPI.java	Thu Nov 17 11:55:59 2016 +0000
+++ b/jdk/src/jdk.crypto.mscapi/windows/classes/sun/security/mscapi/SunMSCAPI.java	Thu Nov 17 21:02:39 2016 +0800
@@ -33,6 +33,8 @@
 import java.security.ProviderException;
 import java.util.HashMap;
 import java.util.Arrays;
+import java.util.Map;
+
 import static sun.security.util.SecurityConstants.PROVIDER_VER;
 
 /**
@@ -133,8 +135,11 @@
                 /*
                  * Secure random
                  */
+                HashMap<String, String> srattrs = new HashMap<>(1);
+                srattrs.put("ThreadSafe", "true");
                 putService(new ProviderService(p, "SecureRandom",
-                           "Windows-PRNG", "sun.security.mscapi.PRNG"));
+                           "Windows-PRNG", "sun.security.mscapi.PRNG",
+                           null, srattrs));
 
                 /*
                  * Key store