EJ-60 Favor the use of standart exceptions

Ref: Effective Java by Joshua Bloch

One of the attributes that most strongly distinguishes expert programmers from less experienced ones is that experts strive for and usually achieve a high degree of code reuse. The Java platform libraries provide a basic set of unchecked exceptions that cover a large fraction of the exception-throwing needs of most APIs.

Reusing preexisting exceptions has several benefits.

• makes your API easier to learn because it matches established conventions with which programmers are already familiar.
• programs using your API are easier to read because they aren't cluttered with unfamiliar exceptions

Some of the more commonly used exception types are:

NullPointerException : Parameter value is null where prohibited

IllegalArgumentException : Non-null parameter value is inappropriate

IllegalStateException : Object state is inappropriate for method invocation

IndexOutOfBoundsException : Index parameter is out of range

UnsupportedOperationException : Object does not support the method