--- a/jdk/src/share/classes/java/math/BigInteger.java Mon Sep 05 08:04:04 2011 -0700
+++ b/jdk/src/share/classes/java/math/BigInteger.java Tue Sep 06 06:17:52 2011 -0700
@@ -3303,25 +3303,35 @@
}
// Commit final fields via Unsafe
- unsafe.putIntVolatile(this, signumOffset, sign);
+ UnsafeHolder.putSign(this, sign);
// Calculate mag field from magnitude and discard magnitude
- unsafe.putObjectVolatile(this, magOffset,
- stripLeadingZeroBytes(magnitude));
+ UnsafeHolder.putMag(this, stripLeadingZeroBytes(magnitude));
}
// Support for resetting final fields while deserializing
- private static final sun.misc.Unsafe unsafe = sun.misc.Unsafe.getUnsafe();
- private static final long signumOffset;
- private static final long magOffset;
- static {
- try {
- signumOffset = unsafe.objectFieldOffset
- (BigInteger.class.getDeclaredField("signum"));
- magOffset = unsafe.objectFieldOffset
- (BigInteger.class.getDeclaredField("mag"));
- } catch (Exception ex) {
- throw new Error(ex);
+ private static class UnsafeHolder {
+ private static final sun.misc.Unsafe unsafe;
+ private static final long signumOffset;
+ private static final long magOffset;
+ static {
+ try {
+ unsafe = sun.misc.Unsafe.getUnsafe();
+ signumOffset = unsafe.objectFieldOffset
+ (BigInteger.class.getDeclaredField("signum"));
+ magOffset = unsafe.objectFieldOffset
+ (BigInteger.class.getDeclaredField("mag"));
+ } catch (Exception ex) {
+ throw new ExceptionInInitializerError(ex);
+ }
+ }
+
+ static void putSign(BigInteger bi, int sign) {
+ unsafe.putIntVolatile(bi, signumOffset, sign);
+ }
+
+ static void putMag(BigInteger bi, int[] magnitude) {
+ unsafe.putObjectVolatile(bi, magOffset, magnitude);
}
}