Name: gm110360 Date: 05/19/2004


FULL PRODUCT VERSION :
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32c, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
GNU/Linux 2.4.21-15.EL

A DESCRIPTION OF THE PROBLEM :
Scanner.getShort([radix]) (as well as getInt and getLong) does not accept uppercase characters (when radix>10). For example, the following fragment:

  Scanner sc = Scanner.create("ff 10 FF");
  System.out.println(sc.readInt(16));
  System.out.println(sc.readInt(16));
  System.out.println(sc.readInt(16));

prints out 255, 16, then throws a InputMismatchException.

In addition, once an InputMismatchException has been thrown, every subsequent attempt to throws the same exception even if the input is purely numeric

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the program below, then run (for example):

java TestHexScanner 10 ff FF 1


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
16 255 255 1
ACTUAL -
16 255 java.util.InputMismatchException java.util.InputMismatchException

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.util.InputMismatchException
        at java.util.Scanner.throwFor(Scanner.java:810)
        at java.util.Scanner.next(Scanner.java:1404)
        at java.util.Scanner.nextInt(Scanner.java:1996)
        .........

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.*;

public class TestHexScanner{
public static void main(String[] args){
String s = "";
for (String arg : args)
s += arg + " ";
Scanner sc = Scanner.create(s);
for (int i=0; i<args.length; i++)
try{
System.out.print(" " + sc.nextInt(16));
} catch(InputMismatchException e) {
System.out.print(" " + e);
}
System.out.println("\n");
}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Short.parseShort, Integer.parseInt and Long.parseLong still work fine, for example, the program above works fine if one uses

    Integer.parseInt(sc.next(), 16)

instaed of

    sc.nextInt(16)
(Incident Review ID: 270426)
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