public class ClassNotFoundException extends ReflectiveOperationException
forName method in class Class.findSystemClass method in class ClassLoader .loadClass method in class ClassLoader.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."
| Constructor | Description |
|---|---|
ClassNotFoundException() | Constructs a ClassNotFoundException with no detail message. |
ClassNotFoundException(String s) | Constructs a ClassNotFoundException with the specified detail message. |
ClassNotFoundException(String s, Throwable ex) | Constructs a ClassNotFoundException with the specified detail message and optional exception that was raised while loading the class. |
| Modifier and Type | Method | Description |
|---|---|---|
Throwable | getCause() | Returns the cause of this exception (the exception that was raised if an error occurred while attempting to load the class; otherwise null). |
Throwable | getException() | Returns the exception that was raised if an error occurred while attempting to load the class. |
addSuppressed, fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toStringpublic ClassNotFoundException()
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 messageex - the exception that was raised while loading the classpublic Throwable getException()
This method predates the general-purpose exception chaining facility. The Throwable.getCause() method is now the preferred means of obtaining this information.
Exception that was raised while loading a classSubmit a bug or feature
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