shalk commented on PR #912:
URL: https://github.com/apache/commons-lang/pull/912#issuecomment-1154103934
>
I found some apis return null if argument is null and the other apis check
them throw npe. they are different behave for argument.
For example, `ClassUtils.getAllInterfaces` document ` {@code null} if null
input` , so i think append `ClassUtils.getClass` with `@throws
NullPointerException if the className is null` is meaningful.
I aslo found ClassUtilsTest have cover the npe case. So document can also
cover it and these document will not break code.
May be we should check which kind of npe should declare in document.
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