diff -r 836adbf7a2cd -r 3317bb8137f4 jdk/src/java.base/share/classes/sun/misc/DoubleConsts.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/sun/misc/DoubleConsts.java	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.misc;
+
+/**
+ * This class contains additional constants documenting limits of the
+ * <code>double</code> type.
+ *
+ * @author Joseph D. Darcy
+ */
+
+public class DoubleConsts {
+    /**
+     * Don't let anyone instantiate this class.
+     */
+    private DoubleConsts() {}
+
+    public static final double POSITIVE_INFINITY = java.lang.Double.POSITIVE_INFINITY;
+    public static final double NEGATIVE_INFINITY = java.lang.Double.NEGATIVE_INFINITY;
+    public static final double NaN = java.lang.Double.NaN;
+    public static final double MAX_VALUE = java.lang.Double.MAX_VALUE;
+    public static final double MIN_VALUE = java.lang.Double.MIN_VALUE;
+
+    /**
+     * A constant holding the smallest positive normal value of type
+     * <code>double</code>, 2<sup>-1022</sup>.  It is equal to the
+     * value returned by
+     * <code>Double.longBitsToDouble(0x0010000000000000L)</code>.
+     *
+     * @since 1.5
+     */
+    public static final double  MIN_NORMAL      = 2.2250738585072014E-308;
+
+
+    /**
+     * The number of logical bits in the significand of a
+     * <code>double</code> number, including the implicit bit.
+     */
+    public static final int SIGNIFICAND_WIDTH   = 53;
+
+    /**
+     * Maximum exponent a finite <code>double</code> number may have.
+     * It is equal to the value returned by
+     * <code>Math.ilogb(Double.MAX_VALUE)</code>.
+     */
+    public static final int     MAX_EXPONENT    = 1023;
+
+    /**
+     * Minimum exponent a normalized <code>double</code> number may
+     * have.  It is equal to the value returned by
+     * <code>Math.ilogb(Double.MIN_NORMAL)</code>.
+     */
+    public static final int     MIN_EXPONENT    = -1022;
+
+    /**
+     * The exponent the smallest positive <code>double</code>
+     * subnormal value would have if it could be normalized..
+     */
+    public static final int     MIN_SUB_EXPONENT = MIN_EXPONENT -
+                                                   (SIGNIFICAND_WIDTH - 1);
+
+    /**
+     * Bias used in representing a <code>double</code> exponent.
+     */
+    public static final int     EXP_BIAS        = 1023;
+
+    /**
+     * Bit mask to isolate the sign bit of a <code>double</code>.
+     */
+    public static final long    SIGN_BIT_MASK   = 0x8000000000000000L;
+
+    /**
+     * Bit mask to isolate the exponent field of a
+     * <code>double</code>.
+     */
+    public static final long    EXP_BIT_MASK    = 0x7FF0000000000000L;
+
+    /**
+     * Bit mask to isolate the significand field of a
+     * <code>double</code>.
+     */
+    public static final long    SIGNIF_BIT_MASK = 0x000FFFFFFFFFFFFFL;
+
+    static {
+        // verify bit masks cover all bit positions and that the bit
+        // masks are non-overlapping
+        assert(((SIGN_BIT_MASK | EXP_BIT_MASK | SIGNIF_BIT_MASK) == ~0L) &&
+               (((SIGN_BIT_MASK & EXP_BIT_MASK) == 0L) &&
+                ((SIGN_BIT_MASK & SIGNIF_BIT_MASK) == 0L) &&
+                ((EXP_BIT_MASK & SIGNIF_BIT_MASK) == 0L)));
+    }
+}