Name: skT88420 Date: 07/21/99


1.
Some code that manipulates bytes seems errors when run with the
new 1.2.2 jit. The code in standard low-level byte shifting
and XORing etc. This problem does not appear with any other JIT.

2.
/**
 * The following code throws a NullPointerException when run with the JIT enabled.
 * It does not throw an exception when JIT is disabled or when an older JIT
 * (Symantec JIT Version 3.00.078 or less) is used instead.
 */
public class OneTwoTwo
{
    private static final long K[] = { 0x5A827999L, 0x6ED9EBA1L, 0x8F1BBCDCL, 0xCA62C1D6L };
    private long length;
    private long H[] = new long[5];
    private long W[] = new long[80];

    private int currentPosition;
    private byte[] N = new byte[64];
    private boolean reset = true;

    protected byte[] testfunc()
{
        byte[] local = N;
        long[] localW = W;
        long A = H[0], B = H[1], C = H[2], D = H[3], E = H[4];

        for(int t = 40;t <= 59; t++) {
            long tmp = localW[t-3] ^ localW[t-8] ^ localW[t-14] ^ localW[t-16];
            localW[t] = ((tmp << 1) & 0xFFFFFFFFL) + (tmp >>> 31);
            long TEMP = ((((A << 5) & 0xFFFFFFFFL) + (A >>> 27) + ((B & C) | (B & D) | (C & D)) + E + localW[t] + K[2]) & 0xFFFFFFFFL);
            E = D; D = C; C = ((B << 30) & 0xFFFFFFFFL) + (B >>> 2); B = A; A = TEMP;
        }

H[0] &= 0xFFFFFFFFL; H[1] &= 0xFFFFFFFFL; H[2] &= 0xFFFFFFFFL; H[3] &= 0xFFFFFFFFL; H[4] &= 0xFFFFFFFFL;
        return null;
    }

    public static void main(String[] args)
    {
        try {
            OneTwoTwo tester = new OneTwoTwo();
            tester.testfunc();
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
}

3 & 4
[d:\temp\tmp]\hava\jdk1.2.2\bin\java -cp OneTwoTwo

java.lang.NullPointerException
        at test.OneTwoTwo.testfunc(OneTwoTwo.java, Compiled Code)
        at test.OneTwoTwo.main(OneTwoTwo.java:41)


5.
[d:\temp\tmp]\hava\jdk1.2.2\bin\java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2-W, native threads, symcjit)

[d:\temp\tmp]\hava\jdk1.2.2\bin\java -fullversion
java full version "JDK-1.2.2-W"
(Review ID: 88203)
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