帮我看看gnu-crypto编译错误

graydream

1. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
   
2. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/cipher/DES.java
   
3. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
   
4. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/cipher/Khazad.java
   
5. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
   
6. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/cipher/NullCipher.jav
   
7. a
   
8. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
   
9. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/exp/ust/UST.java
   
10. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
    
11. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/hash/BaseHash.java
    
12. ./gnu/crypto/mac/BaseMac.java:46: cannot access gnu.crypto.hash.IMessageDigest
    
13. bad class file: ./gnu/crypto/hash/IMessageDigest.class
    
14. class file contains wrong class: java.io.Serializable
    
15. Please remove or make sure it appears in the correct subdirectory of the classpath.
    
16. CLASSPATH=.:/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/jce/javax-crypto.jar:/var/tmp/portage/gnu-crypto-2.0.1
    
17. /work/gnu-crypto-2.0.1/security/javax-security.jar /opt/blackdown-jdk-1.4.2.01/bin/javac  gnu/crypto/hash/HashFactory.java
    
18. import gnu.crypto.hash.IMessageDigest;
    
19.                        ^
    
20. 1 error
    
21. make[1]: *** [gnu/crypto/exp/ust/UST.class] Error 1
    
22. make[1]: *** Waiting for unfinished jobs....
    
23. make[1]: Leaving directory `/var/tmp/portage/gnu-crypto-2.0.1/work/gnu-crypto-2.0.1/source'
    
24. make: *** [all-recursive] Error 1

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./gnu/crypto/mac/BaseMac.java:46: cannot access gnu.crypto.hash.IMessageDigest
bad class file: ./gnu/crypto/hash/IMessageDigest.class
class file contains wrong class: java.io.Serializable
好象是说IMessageDigest.class有问题？

可是我打开IMessageDigest.java并没有发现java.io.Serializable，如下

1. package gnu.crypto.hash;
   
2. /**
   
3. * <p>The basic visible methods of any hash algorithm.</p>
   
4. *
   
5. * <p>A hash (or message digest) algorithm produces its output by iterating a
   
6. * basic compression function on blocks of data.</p>
   
7. *
   
8. * @version $Revision: 1.9 $
   
9. */
   
10. public interface IMessageDigest extends Cloneable {
    
11. 
    
12.    // Constants
    
13.    // -------------------------------------------------------------------------
    
14. 
    
15.    // Methods
    
16.    // -------------------------------------------------------------------------
    
17. 
    
18.    /**
    
19.     * <p>Returns the canonical name of this algorithm.</p>
    
20.     *
    
21.     * @return the canonical name of this instance.
    
22.     */
    
23.    String name();
    
24. 
    
25.    /**
    
26.     * <p>Returns the output length in bytes of this message digest algorithm.</p>
    
27.     *
    
28.     * @return the output length in bytes of this message digest algorithm.
    
29.     */
    
30.    int hashSize();
    
31. 
    
32.    /**
    
33.     * <p>Returns the algorithm's (inner) block size in bytes.</p>
    
34.     *
    
35.     * @return the algorithm's inner block size in bytes.
    
36.     */
    
37.    int blockSize();
    
38. 
    
39.    /**
    
40.     * <p>Continues a message digest operation using the input byte.</p>
    
41.     *
    
42.     * @param b the input byte to digest.
    
43.     */
    
44.    void update(byte b);
    
45. 
    
46.    /**
    
47.     * <p>Continues a message digest operation, by filling the buffer, processing
    
48.     * data in the algorithm's HASH_SIZE-bit block(s), updating the context and
    
49.     * count, and buffering the remaining bytes in buffer for the next
    
50.     * operation.</p>
    
51.     *
    
52.     * @param in the input block.
    
53.     * @param offset start of meaningful bytes in input block.
    
54.     * @param length number of bytes, in input block, to consider.
    
55.     */
    
56.    void update(byte[] in, int offset, int length);
    
57. 
    
58.    /**
    
59.     * <p>Completes the message digest by performing final operations such as
    
60.     * padding and resetting the instance.</p>
    
61.     *
    
62.     * @return the array of bytes representing the hash value.
    
63.     */
    
64.    byte[] digest();
    
65. 
    
66.    /**
    
67.     * <p>Resets the current context of this instance clearing any eventually cached
    
68.     * intermediary values.</p>
    
69.     */
    
70.    void reset();
    
71. 
    
72.    /**
    
73.     * <p>A basic test. Ensures that the digest of a pre-determined message is equal
    
74.     * to a known pre-computed value.</p>
    
75.     *
    
76.     * @return <tt>true</tt> if the implementation passes a basic self-test.
    
77.     * Returns <tt>false</tt> otherwise.
    
78.     */
    
79.    boolean selfTest();
    
80. 
    
81.    /**
    
82.     * <p>Returns a clone copy of this instance.</p>
    
83.     *
    
84.     * @return a clone copy of this instance.
    
85.     */
    
86.    Object clone();
    
87. }

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搞不明白是什么意思