java.lang

Class ClassNotFoundException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.ReflectiveOperationException

java.lang.ClassNotFoundException

All Implemented Interfaces:

Serializable

public class ClassNotFoundException
extends ReflectiveOperationException

Thrown when a class is requested by reflection, but the class definition cannot be found. This exception is often chained from another Throwable.

See Also:

Class.forName(String), ClassLoader.findSystemClass(String), ClassLoader.loadClass(String, boolean), Serialized Form

Constructor Summary

Constructors

Constructor and Description
ClassNotFoundException() Create an exception without a message.
ClassNotFoundException(String s) Create an exception with a message.
ClassNotFoundException(String s, Throwable ex) Create an exception with a message and chain it to the exception which occurred while loading the class.

Method Summary

Methods

Modifier and Type	Method and Description
Throwable	getCause() Returns the exception which occurred while loading the class, otherwise returns null.
Throwable	getException() Returns the exception which occurred while loading the class, otherwise returns null.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ClassNotFoundException

public ClassNotFoundException()

Create an exception without a message. Note that this initializes the cause to null.

ClassNotFoundException

public ClassNotFoundException(String s)

Create an exception with a message. Note that this initializes the cause to null.

Parameters:

s - the message

ClassNotFoundException

public ClassNotFoundException(String s,
                      Throwable ex)

Create an exception with a message and chain it to the exception which occurred while loading the class.

Parameters:

s - the message

ex - the chained exception

Since:

1.2

Method Detail

getException

public Throwable getException()

Returns the exception which occurred while loading the class, otherwise returns null. This is a legacy method; the preferred choice now is Throwable.getCause().

Returns:

the cause of this exception

Since:

1.2

getCause

public Throwable getCause()

Returns the exception which occurred while loading the class, otherwise returns null.

Overrides:

getCause in class Throwable

Returns:

the cause of this exception

Since:

1.4