@Nonnull
  public MimeType addParameter (@Nonnull @Nonempty final String sAttribute, @Nonnull @Nonempty final String sValue)
  {
    return addParameter (new MimeTypeParameter (sAttribute, sValue));
  }
@ Nonnull public MimeType addParameter ( @ Nonnull @ Nonempty final String sAttribute , @ Nonnull @ Nonempty final String sValue ) { return addParameter ( new MimeTypeParameter ( sAttribute , sValue ) ) ; }
Add a parameter.

@param sAttribute
Parameter name. Must neither be <code>null</code> nor empty and must
match {@link MimeTypeParser#isToken(String)}.
@param sValue
The value to use. May neither be <code>null</code> nor empty. Must
not be a valid MIME token.
@return this