Unintentional catching of runtime exceptions

Unfortunately, checked exceptions in Java are defined as all Exceptions which are not RuntimeExceptions. This makes it a bit tricky to catch all checked exceptions (but not any runtime exceptions). It would have been better if checked exceptions were defined by a specific class, CheckedException, but that’s too late to change now.

Too often Java programmers catch all exceptions when they really only should catch checked exceptions. However, there is a quite easy workaround to catch all checked exceptions, and nothing else: