Name: tb29552 Date: 12/21/2001


FULL PRODUCT VERSION :
java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build
1.3.1-b24)
Java HotSpot(TM) Server VM (build 1.3.1-b24, mixed mode)


FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]



A DESCRIPTION OF THE PROBLEM :
When running the source code (attached) including two
function calls that are supposed to do the same thing, the
function getBadLong() returns 0 after approx. one minute
The server version of 1.3.1 is used.

Output Before:
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 3833663640
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 3833663640
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 3833663640
Output After:
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 0
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 0
getOkLong(OK) = 3833663640 getBadLong(NOT OK) = 0


REGRESSION. Last worked in version 1.3.1

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. run the attached source
2. Wait apprix one minute
3. -

EXPECTED VERSUS ACTUAL BEHAVIOR :
getOkLong() and getBadLong() should always return the same
value.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
not applicable for this BUG

This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class GetLongTest {
    public byte val[] = {(byte) 0x98, (byte) 0x10, (byte) 0x81, (byte) 0xe4};

    public char getChar() {
        if ((val == null) || (val.length == 0))
            return 0;
        return (char) ((val[0] & 0xff) |
                       (val.length < 2 ? 0 : ((val[1] & 0xff) << 8)));
    }
    public int getInt() {
        if (val == null)
            return 0;
        return (0xffff & getChar()) |
            (val.length < 3 ? 0 :
             (((val[2] & 0xff) << 16) |
              (val.length < 4 ? 0 : ((val[3] & 0xff) << 24))));
    }
    public long getOkLong() {
        if (val == null)
            return 0;

        long ret = getInt() & 0xffffffffL;
        if (val.length < 5)
            return ret;
        ret = ret + ((long) (val[4] & 0xff) << 32);
        if (val.length < 6)
            return ret;
        ret = ret + ((long) (val[5] & 0xff) << 40);
        if (val.length < 7)
            return ret;
        ret = ret + ((long) (val[6] & 0xff) << 48);
        if (val.length < 8)
            return ret;
        ret = ret + ((long) (val[7] & 0xff) << 56);
        return ret;

    }

    public long getBadLong() {
        long ret = ((((long) getInt()) << 32) >>> 32) |
        (((long) ((val.length < 5 ? 0 : ((val[4] & 0xff) |
                                         (val.length < 6 ? 0 :
                                          (((val[5] &
                                             0xff) << 8) |
                                           (val.length
                                            < 7 ? 0 :
                                            (((val[6] &
                                               0xff) << 16) |
                                             (val.length < 8 ? 0 :
                                              (val[7]
                                               << 24)))))))))) << 32);
        return ret;
    }

    public static void main(String args[]) {
        GetLongTest test = new GetLongTest();
        long i = 0;
        int f = 0;
        final int fMax = 10;
        while ((i++ < java.lang.Long.MAX_VALUE) && (f < fMax)) {
            long ok = test.getOkLong();
            long nok = test.getBadLong();
            if (ok != nok) {
                f++;
                System.out.println("Iteration #" + i +
                                   " getOkLong(OK) = " + ok +
                                   " getBadLong(NOT OK) = " + nok);
            }
        }
        if (f > 0) {
            System.out.println("Stopping at iteration " + i + " after " + f +
                               " failures this run." );
            System.exit(-1);
        }
        System.exit(0);
    }
}

---------- END SOURCE ----------

CUSTOMER WORKAROUND :
Use the client version of 1.3.1
(Review ID: 137648)
======================================================================
###@###.### 10/5/04 22:28 GMT