--- a/jdk/src/java.base/share/classes/java/lang/invoke/MethodHandleImpl.java	Tue Feb 16 12:09:11 2016 -0800
+++ b/jdk/src/java.base/share/classes/java/lang/invoke/MethodHandleImpl.java	Thu Feb 18 18:07:47 2016 +0100
@@ -778,8 +778,21 @@
             return (asTypeCache = wrapper);
         }
 
+        // Customize target if counting happens for too long.
+        private int invocations = CUSTOMIZE_THRESHOLD;
+        private void maybeCustomizeTarget() {
+            int c = invocations;
+            if (c >= 0) {
+                if (c == 1) {
+                    target.customize();
+                }
+                invocations = c - 1;
+            }
+        }
+
         boolean countDown() {
             int c = count;
+            maybeCustomizeTarget();
             if (c <= 1) {
                 // Try to limit number of updates. MethodHandle.updateForm() doesn't guarantee LF update visibility.
                 if (isCounting) {

--- a/jdk/src/java.base/share/classes/jdk/internal/misc/Unsafe.java	Tue Feb 16 12:09:11 2016 -0800
+++ b/jdk/src/java.base/share/classes/jdk/internal/misc/Unsafe.java	Thu Feb 18 18:07:47 2016 +0100
@@ -1231,7 +1231,12 @@
     /** @see #getLongUnaligned(Object, long) */
     @HotSpotIntrinsicCandidate
     public final char getCharUnaligned(Object o, long offset) {
-        return (char)getShortUnaligned(o, offset);
+        if ((offset & 1) == 0) {
+            return getChar(o, offset);
+        } else {
+            return (char)makeShort(getByte(o, offset),
+                                   getByte(o, offset + 1));
+        }
     }
 
     /** @see #getLongUnaligned(Object, long, boolean) */