update Java version

Author: peteroupc

src/main/java/com/upokecenter/cbor/CBORUtilities.java

@@ -1123,9 +1123,12 @@ public static long IntegerToDoubleBits(int i) {
       if (i == Integer.MIN_VALUE) {
         return (long)0xc1e0000000000000L;
       }
+      if (i == 0) {
+        return 0L;
+      }
       long longmant = Math.abs(i);
       int expo = 0;
-      while (longmant < (1 << 52)) {
+      while (longmant < (1L << 52)) {
         longmant <<= 1;
         --expo;
       }

src/test/java/com/upokecenter/test/CBORObjectTest.java

@@ -9487,6 +9487,29 @@ public void TestFromJsonStringFastCases() {
         0);
     }
 
+    @Test(timeout = 10000)
+    public void TestFromJsonStringSmallDouble() {
+       CBORObject cbor;
+       AssertJSONDouble("0","double",0.0);
+       cbor=FromJSON("[0, 1, 2, 3]", "double");
+       Assert.assertEquals(4, cbor.size());
+       Assert.assertEquals(0.0, cbor.get(0).AsDouble());
+       Assert.assertEquals(1.0, cbor.get(1).AsDouble());
+       Assert.assertEquals(2.0, cbor.get(2).AsDouble());
+       Assert.assertEquals(3.0, cbor.get(3).AsDouble());
+       cbor=FromJSON("[0]", "double");
+       Assert.assertEquals(1, cbor.size());
+       Assert.assertEquals(0.0, cbor.get(0).AsDouble());
+       cbor=FromJSON("[-0]", "double");
+       Assert.assertEquals(1, cbor.size());
+       cbor=FromJSON("[1]", "double");
+       Assert.assertEquals(1, cbor.size());
+       Assert.assertEquals(1.0, cbor.get(0).AsDouble());
+       cbor=FromJSON("[-1]", "double");
+       Assert.assertEquals(1, cbor.size());
+       Assert.assertEquals(-1.0, cbor.get(0).AsDouble());
+    }
+
     @Test(timeout = 10000)
     public void TestFromJsonStringLongKindFull() {
       JSONOptions jsonop = new JSONOptions("numberconversion=full");