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DummyKeyPairGenerator.java (clone): Removed useless instanceof check.

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2004-08-30  Casey Marshall  <csm@gnu.org>

        * java/security/DummyKeyPairGenerator.java (clone): Removed
        useless instanceof check.
        * java/security/DummyMessageDigest.java (clone): Likewise.
        * java/security/DummySignature.java (clone): Likewise.
        * java/security/MessageDigest.java (clone): Remove useless
        instanceof check.
        * java/security/MessageDigestSpi.java (clone): Likewise.
        * java/security/Signature.java (clone): Provide meaningful
        implementation.
        * java/security/SignatureSpi.java (clone): Likewise.

From-SVN: r86755
This commit is contained in:
Casey Marshall 2004-08-30 10:25:38 +00:00 • committed by Andreas Tobler
parent ce521a9c85
commit 28839b70d0
8 changed files with 52 additions and 54 deletions
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13
libjava/java/security/MessageDigestSpi.java
View file

@ -40,15 +40,15 @@ package java.security;
/**
This is the Service Provider Interface (SPI) for MessageDigest
class in java.security. It provides the back end functionality
for the MessageDigest class so that it can compute message
for the MessageDigest class so that it can compute message
hashes. The default hashes are SHA-1 and MD5. A message hash
takes data of arbitrary length and produces a unique number
representing it.
representing it.
Cryptography service providers who want to implement their
own message digest hashes need only to subclass this class.
The implementation of a Cloneable interface is left to up to
The implementation of a Cloneable interface is left to up to
the programmer of a subclass.
@version 0.0
@ -135,7 +135,7 @@ public abstract class MessageDigestSpi
}
/**
Resets the digest engine. Reinitializes internal variables
Resets the digest engine. Reinitializes internal variables
and clears sensitive data.
*/
protected abstract void engineReset();
@ -150,9 +150,6 @@ public abstract class MessageDigestSpi
*/
public Object clone() throws CloneNotSupportedException
{
if (this instanceof Cloneable)
return super.clone();
else
throw new CloneNotSupportedException();
return super.clone();
}
}