message: Remove incorrect exception references.
  Add override annotation.
diff: @@ -79,7 +79,6 @@ public class MockMessageContext implements MessageContext {
  * @param ctx MSL context.
  * @param bitlength key length in bits.
  * @return a new key of the specified bit length.
  - * @throws CryptoException if there is an error creating the key.
  */
  private static SecretKey getSecretKey(final MslContext ctx, final int bitlength, final String algorithm) {
  final byte[] keydata = new byte[bitlength / Byte.SIZE];
  @@ -99,13 +98,10 @@ public class MockMessageContext implements MessageContext {
  * found.
  * @throws InvalidAlgorithmParameterException if key generation parameters
  * are invalid.
  - * @throws CryptoException if there is an error creating a key.
  - * @throws MslCryptoException if the service token crypto context keys are
  - * the wrong length.
  * @throws MslKeyExchangeException if there is an error accessing Diffie-
  * Hellman parameters.
  */
  - public MockMessageContext(final MslContext ctx, final String userId, final UserAuthenticationScheme scheme) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MslCryptoException, MslKeyExchangeException {
  + public MockMessageContext(final MslContext ctx, final String userId, final UserAuthenticationScheme scheme) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, MslKeyExchangeException {
  this.recipient = null;
  this.encrypted = false;
  this.integrityProtected = false;
  @@ -175,6 +171,7 @@ public class MockMessageContext implements MessageContext {
  /* (non-Javadoc)
  * @see com.netflix.msl.msg.MessageContext#getRecipient()
  */
  + @Override
  public String getRecipient() {
  return recipient;
  }
  