6469160: (fmt) general (%g) formatting of zero (0.0) with precision 0 or 1...

6469160: (fmt) general (%g) formatting of zero (0.0) with precision 0 or 1 throws ArrayOutOfBoundsException
Summary: For zero value ensure than an unpadded zero character is passed to Formatter.addZeros()
Reviewed-by: iris, darcy
Contributed-by: NBrian Burkhalter <brian.burkhalter@oracle.com>

src/share/classes/java/util/Formatter.java

@@ -3297,18 +3297,29 @@ public final class Formatter implements Closeable, Flushable {
                 else if (precision == 0)
                     prec = 1;
 
+                char[] exp;
+                char[] mant;
+                int expRounded;
+                if (value == 0.0) {
+                    exp = null;
+                    mant = new char[] {'0'};
+                    expRounded = 0;
+                } else {
                     FormattedFloatingDecimal fd
                         = FormattedFloatingDecimal.valueOf(value, prec,
                           FormattedFloatingDecimal.Form.GENERAL);
+                    exp = fd.getExponent();
+                    mant = fd.getMantissa();
+                    expRounded = fd.getExponentRounded();
+                }
 
-                char[] exp = fd.getExponent();
                 if (exp != null) {
                     prec -= 1;
                 } else {
-                    prec = prec - (value == 0 ? 0 : fd.getExponentRounded()) - 1;
+                    prec -= expRounded + 1;
                 }
 
-                char[] mant = addZeros(fd.getMantissa(), prec);
+                mant = addZeros(mant, prec);
                 // If the precision is zero and the '#' flag is set, add the
                 // requested decimal point.
                 if (f.contains(Flags.ALTERNATE) && (prec == 0))

src/share/classes/sun/misc/FloatingDecimal.java

@@ -1045,7 +1045,7 @@ public class FloatingDecimal{
             this.nDigits = n;
         }
 
-        /*
+        /**
          * Takes a FloatingDecimal, which we presumably just scanned in,
          * and finds out what its value is, as a double.
          *

test/java/util/Formatter/Basic-X.java.template

@@ -1177,6 +1177,13 @@ public class Basic$Type$ extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);

test/java/util/Formatter/Basic.java

@@ -25,7 +25,7 @@
  * @summary Unit test for formatter
  * @bug 4906370 4962433 4973103 4989961 5005818 5031150 4970931 4989491 5002937
  *      5005104 5007745 5061412 5055180 5066788 5088703 6317248 6318369 6320122
- *      6344623 6369500 6534606 6282094 6286592 6476425 5063507
+ *      6344623 6369500 6534606 6282094 6286592 6476425 5063507 6469160
  *
  * @run shell/timeout=240 Basic.sh
  */

test/java/util/Formatter/BasicBigDecimal.java

@@ -1177,6 +1177,13 @@ public class BasicBigDecimal extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);

test/java/util/Formatter/BasicDouble.java

@@ -1113,6 +1113,15 @@ public class BasicDouble extends Basic {
 
 
 
+
+
+
+
+
+
+
+
+
 
 
 
@@ -1168,6 +1177,13 @@ public class BasicDouble extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);

test/java/util/Formatter/BasicDoubleObject.java

@@ -1113,6 +1113,15 @@ public class BasicDoubleObject extends Basic {
 
 
 
+
+
+
+
+
+
+
+
+
 
 
 
@@ -1168,6 +1177,13 @@ public class BasicDoubleObject extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);

test/java/util/Formatter/BasicFloat.java

@@ -1096,6 +1096,15 @@ public class BasicFloat extends Basic {
 
 
 
+
+
+
+
+
+
+
+
+
 
 
 
@@ -1168,6 +1177,13 @@ public class BasicFloat extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);

test/java/util/Formatter/BasicFloatObject.java

@@ -1129,6 +1129,15 @@ public class BasicFloatObject extends Basic {
 
 
 
+
+
+
+
+
+
+
+
+
 
 
 
@@ -1168,6 +1177,13 @@ public class BasicFloatObject extends Basic {
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);