public class ClassNotFoundException extends ReflectiveOperationException
Thrown when an application tries to load in a class through its string name using:
forNamemethod in class
findSystemClassmethod in class
loadClassmethod in class
but no definition for the class with the specified name could be found.
As of release 1.4, this exception has been retrofitted to conform to the general purpose exception-chaining mechanism. The "optional exception that was raised while loading the class" that may be provided at construction time and accessed via the
getException() method is now known as the cause, and may be accessed via the
Throwable.getCause() method, as well as the aforementioned "legacy method."
ClassLoader.loadClass(java.lang.String, boolean), Serialized Form
ClassNotFoundException with no detail message.
public ClassNotFoundException(String s)
ClassNotFoundException with the specified detail message.
s- the detail message.
public ClassNotFoundException(String s, Throwable ex)
ClassNotFoundException with the specified detail message and optional exception that was raised while loading the class.
s- the detail message
ex- the exception that was raised while loading the class
public Throwable getException()
Returns the exception that was raised if an error occurred while attempting to load the class. Otherwise, returns
This method predates the general-purpose exception chaining facility. The
Throwable.getCause() method is now the preferred means of obtaining this information.
Exceptionthat was raised while loading a class
public Throwable getCause()
Returns the cause of this exception (the exception that was raised if an error occurred while attempting to load the class; otherwise
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