Name: sdC67446 Date: 02/10/2000


The java.util.zip.Inflater.getAdler() does not return
the ADLER-32 value of the uncompressed data.
Currently this method returns the initial value (1)

The java doc says:
-------------------------------------------------------------
    /**
     * Returns the ADLER-32 value of the uncompressed data.
     * @return the ADLER-32 value of the uncompressed data
     */
    public synchronized int getAdler()
------------------------------------------------------------

The test:
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import java.util.zip.*;
public class Test {
    public static final byte compressedBytes[] = {
        120, -100, -85, -107, -79, 74,
        85, 97, 117, 48, -9, 117, -47, 114, 15, -87, -27, -9, -54,
        -48, 49, -108, 17, 19, 20, 118, -87, -84, 78, -15, -10,
        -87, -112, 51, 115, 16, 85, 81, 54, 11, 114, 44, 11, 98, 116,
        17, 102, -10, 72, -10, 80, -79, 101, 14, 47, -50, 16, 117,
        -9, -83, 16, 13, -55, 83, 83, 103, -30, -117, -42, -82,
        -105, -119, 46, -16, 20, -111, -85, -16, -48, 54, 79,
        -53, -76, 116, -80, -78, 77, -88, -85, 50, 113, -54, 15,
        -74, -28, -44, 101, -43, 47, 85, 54, -74, 1, 0, -34, -35,
        25, 7
        };
    public static void main(String[] args) {
        byte[] buf = new byte[100];
        Inflater inf = new Inflater();
        System.out.println("inf.getAdler(): "+((int)inf.getAdler()));
        inf.setInput(compressedBytes);
        try {
            while (!inf.needsInput()) {
                inf.inflate(buf, 0, buf.length);
            }
            while (!inf.finished()) {
                inf.inflate(buf, 0, buf.length);
            }
        } catch (DataFormatException e) {
            e.printStackTrace();
        }
        System.out.println("inf.getAdler(): "+((int)inf.getAdler()));
    }
}
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Test output:

inf.getAdler(): 1
inf.getAdler(): 1
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