org.apache.commons.lang
public class NullArgumentException extends IllegalArgumentException
Thrown to indicate that an argument was null
and should
not have been.
This exception supplements the standard IllegalArgumentException
by providing a more semantically rich description of the problem.
NullArgumentException
represents the case where a method takes
in a parameter that must not be null
.
Some coding standards would use NullPointerException
for this case,
others will use IllegalArgumentException
.
Thus this exception would be used in place of
IllegalArgumentException
, yet it still extends it.
public void foo(String str) { if (str == null) { throw new NullArgumentException("str"); } // do something with the string }
Since: 2.0
Version: $Id: NullArgumentException.java 437554 2006-08-28 06:21:41Z bayard $
Constructor Summary | |
---|---|
NullArgumentException(String argName) Instantiates with the given argument name. |
Instantiates with the given argument name.
Parameters: argName the name of the argument that was null
.