Examples of javax.security.sasl.SaslClient.unwrap()

javax.security.sasl.SaslClient.unwrap()
Unwraps a byte array received from the server. This method can be called only after the authentication exchange has completed (i.e., when {@code isComplete()} returns true) and only ifthe authentication exchange has negotiated integrity and/or privacy as the quality of protection; otherwise, an {@code IllegalStateException} is thrown.
{@code incoming} is the contents of the SASL buffer as defined in RFC 2222without the leading four octet field that represents the length. {@code offset} and {@code len} specify the portion of {@code incoming}to use. @param incoming A non-null byte array containing the encoded bytesfrom the server. @param offset The starting position at {@code incoming} of the bytes to use. @param len The number of bytes from {@code incoming} to use. @return A non-null byte array containing the decoded bytes. @exception SaslException if {@code incoming} cannot be successfullyunwrapped. @exception IllegalStateException if the authentication exchange hasnot completed, or if the negotiated quality of protection has neither integrity nor privacy.

        CallbackHandler cbH = new cbHandN();
        SaslClient saslC = Sasl.createSaslClient(new String[] { "NAME-2" },
                null, "protocol", null, null, cbH);
        assertNotNull("Null result", saslC);
        try {
            saslC.unwrap(null, 1, 1);
            fail("SaslException sould be thrown");
        } catch (SaslException e) {
        }
        assertFalse("Incorrect isComplete() result", saslC.isComplete());
        // try to create client for wrong mechanism

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        saslC = Sasl.createSaslClient(new String[] { "NAME-2" }, null,
                "protocol", null, null, cbH);
        assertNotNull("Null result for NAME-2", saslC);
        try {
            saslC.unwrap(null, 1, 1);
            fail("SaslException sould be thrown");
        } catch (SaslException e) {
        }
        assertFalse("Incorrect isComplete() result", saslC.isComplete());
        // NAME-1 was defined in some provider but it is supported in

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        CallbackHandler cbH = new cbHandN();
        SaslClient saslC = Sasl.createSaslClient(new String[] { "NAME-2" },
                null, "protocol", null, null, cbH);
        assertNotNull("Null result", saslC);
        try {
            saslC.unwrap(null, 1, 1);
            fail("SaslException sould be thrown");
        } catch (SaslException e) {
        }
        assertFalse("Incorrect isComplete() result", saslC.isComplete());
        // try to create client for wrong mechanism

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        saslC = Sasl.createSaslClient(new String[] { "NAME-2" }, null,
                "protocol", null, null, cbH);
        assertNotNull("Null result for NAME-2", saslC);
        try {
            saslC.unwrap(null, 1, 1);
            fail("SaslException sould be thrown");
        } catch (SaslException e) {
        }
        assertFalse("Incorrect isComplete() result", saslC.isComplete());
        // NAME-1 was defined in some provider but it is supported in

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