Remove nextPowerOf2(long) since it is now unused.

h2/src/main/org/h2/util/MathUtils.java

@@ -236,31 +236,6 @@ public class MathUtils {
         return ++x;
     }
 
-    /**
-     * Get the value that is equal to or higher than this value, and that is a
-     * power of two.
-     *
-     * @param x the original value
-     * @return the next power of two value
-     * @throws IllegalArgumentException if x < 0 or x > 0x4000000000000000
-     */
-    public static long nextPowerOf2(long x) throws IllegalArgumentException {
-        if (x == 0) {
-            return 1;
-        } else if (x < 0 || x > 0x4000000000000000L ) {
-            throw new IllegalArgumentException("Argument out of range"
-                    + " [0x0-0x4000000000000000]. Argument was: " + x);
-        }
-        x--;
-        x |= x >> 1;
-        x |= x >> 2;
-        x |= x >> 4;
-        x |= x >> 8;
-        x |= x >> 16;
-        x |= x >> 32;
-        return ++x;
-    }
-
     /**
      * Convert a long value to an int value. Values larger than the biggest int
      * value is converted to the biggest int value, and values smaller than the

h2/src/test/org/h2/test/unit/TestMathUtils.java

@@ -26,7 +26,6 @@ public class TestMathUtils extends TestBase {
     public void test() {
         testRandom();
         testNextPowerOf2Int();
-        testNextPowerOf2Long();
     }
 
     private void testRandom() {
@@ -63,17 +62,4 @@ public class TestMathUtils extends TestBase {
         }
     }
 
-    private void testNextPowerOf2Long() {
-        // the largest power of two that fits into a long
-        final long LARGEST_POW2 = 0x4000000000000000L;
-        long[] testValues = { 0, 1, 2, 3, 4, 12, 17, 500, 1023,
-                LARGEST_POW2-500, LARGEST_POW2 };
-        long[] resultValues = { 1, 1, 2, 4, 4, 16, 32, 512, 1024,
-                LARGEST_POW2, LARGEST_POW2 };
-
-        for (int i = 0; i < testValues.length; i++) {
-            assertEquals(resultValues[i], MathUtils.nextPowerOf2(testValues[i]));
-        }
-    }
-
 }