org.apache.commons.lang
Class NullArgumentException
java.lang.Object
java.lang.Throwable
java.lang.Exception
java.lang.RuntimeException
java.lang.IllegalArgumentException
org.apache.commons.lang.NullArgumentException
- All Implemented Interfaces:
- Serializable
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 905636 2010-02-02 14:03:32Z niallp $
- Author:
- Apache Software Foundation, Matthew Hawthorne
- See Also:
- Serialized Form
Methods inherited from class java.lang.Throwable |
fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString |
NullArgumentException
public NullArgumentException(String argName)
Instantiates with the given argument name.
- Parameters:
argName
- the name of the argument that was null
.
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