--- jsr166/src/main/java/util/SplittableRandom.java	2016/01/02 02:27:03	1.30
+++ jsr166/src/main/java/util/SplittableRandom.java	2016/12/20 22:08:05	1.38
@@ -219,30 +219,33 @@ public final class SplittableRandom {
         return seed += gamma;
     }
 
+    // IllegalArgumentException messages
+    static final String BAD_BOUND = "bound must be positive";
+    static final String BAD_RANGE = "bound must be greater than origin";
+    static final String BAD_SIZE  = "size must be non-negative";
+
     /**
      * The seed generator for default constructors.
      */
-    private static final AtomicLong defaultGen = new AtomicLong(initialSeed());
-
-    private static long initialSeed() {
-        java.security.PrivilegedAction<Boolean> action =
-            () -> Boolean.getBoolean("java.util.secureRandomSeed");
-        if (java.security.AccessController.doPrivileged(action)) {
+    private static final AtomicLong defaultGen
+        = new AtomicLong(mix64(System.currentTimeMillis()) ^
+                         mix64(System.nanoTime()));
+
+    // at end of <clinit> to survive static initialization circularity
+    static {
+        if (java.security.AccessController.doPrivileged(
+            new java.security.PrivilegedAction<Boolean>() {
+                public Boolean run() {
+                    return Boolean.getBoolean("java.util.secureRandomSeed");
+                }})) {
             byte[] seedBytes = java.security.SecureRandom.getSeed(8);
             long s = (long)seedBytes[0] & 0xffL;
             for (int i = 1; i < 8; ++i)
                 s = (s << 8) | ((long)seedBytes[i] & 0xffL);
-            return s;
+            defaultGen.set(s);
         }
-        return (mix64(System.currentTimeMillis()) ^
-                mix64(System.nanoTime()));
     }
 
-    // IllegalArgumentException messages
-    static final String BAD_BOUND = "bound must be positive";
-    static final String BAD_RANGE = "bound must be greater than origin";
-    static final String BAD_SIZE  = "size must be non-negative";
-
     /*
      * Internal versions of nextX methods used by streams, as well as
      * the public nextX(origin, bound) methods.  These exist mainly to
@@ -372,7 +375,7 @@ public final class SplittableRandom {
      * may, and typically does, vary across program invocations.
      */
     public SplittableRandom() { // emulate defaultGen.split()
-        long s = defaultGen.getAndAdd(2 * GOLDEN_GAMMA);
+        long s = defaultGen.getAndAdd(GOLDEN_GAMMA << 1);
         this.seed = mix64(s);
         this.gamma = mixGamma(s + GOLDEN_GAMMA);
     }