Hi all, First of all, apologies if I have messed something up - this is my first attempt at contributing to Apache.
With that said, I'd like to propose adding two new methods to Commons Lang's ObjectUtils class: - isEmpty() - isNotEmpty() These would check whether the object is empty (or not empty respectively) based on its type: - CharSequence - Considered empty if its length is zero. - Array - Considered empty if its length is zero. - Collection - Considered empty if it has zero elements. - Map - Considered empty if it has zero key-value mappings. The object would be considered "not-empty" if its type is not one of the types mentioned above. There is an already existing method that does exactly this in Spring's ObjectUtils (see https://github.com/spring-projects/spring-framework/blob/2ac23badee02697c5eb87c46f955387b32a0d581/spring-core/src/main/java/org/springframework/util/ObjectUtils.java#L134), but I think it would be helpful to people (myself and my team included) if there was a similar method in Commons Lang's ObjectUtils. That way we wouldn't have to add a dependency to Spring or re-implement the method in our code base. What do you think? I've opened a JIRA ticket and a GitHub pull request as well: https://issues.apache.org/jira/browse/LANG-1411 https://github.com/apache/commons-lang/pull/342 Best regards, Alexander
