ClassNotFoundException

public class ClassNotFoundException
extends ReflectiveOperationException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.lang.ReflectiveOperationException
			↳	java.lang.ClassNotFoundException

Thrown when an application tries to load in a class through its string name using:

but no definition for the class with the specified name could be found.

See also:

Summary

Public constructors
`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.

Public methods
`Throwable`	`getException()` Returns the exception that was raised if an error occurred while attempting to load the class.

From class java.lang.Throwable

`final void`	`addSuppressed(Throwable exception)` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
`Throwable`	`fillInStackTrace()` Fills in the execution stack trace.
`Throwable`	`getCause()` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown.
`String`	`getLocalizedMessage()` Creates a localized description of this throwable.
`String`	`getMessage()` Returns the detail message string of this throwable.
`StackTraceElement[]`	`getStackTrace()` Provides programmatic access to the stack trace information printed by `printStackTrace()`.
`final Throwable[]`	`getSuppressed()` Returns an array containing all of the exceptions that were suppressed, typically by the `try`-with-resources statement, in order to deliver this exception.
`Throwable`	`initCause(Throwable cause)` Initializes the cause of this throwable to the specified value.
`void`	`printStackTrace()` Prints this throwable and its backtrace to the standard error stream.
`void`	`printStackTrace(PrintWriter s)` Prints this throwable and its backtrace to the specified print writer.
`void`	`printStackTrace(PrintStream s)` Prints this throwable and its backtrace to the specified print stream.
`void`	`setStackTrace(StackTraceElement[] stackTrace)` Sets the stack trace elements that will be returned by `getStackTrace()` and printed by `printStackTrace()` and related methods.
`String`	`toString()` Returns a short description of this throwable.

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

 public ClassNotFoundException ()

Constructs a ClassNotFoundException with no detail message.

 public ClassNotFoundException (String s)

Constructs a ClassNotFoundException with the specified detail message.

Parameters
`s`	`String`: the detail message.

 public ClassNotFoundException (String s, Throwable ex)

Constructs a ClassNotFoundException with the specified detail message and optional exception that was raised while loading the class.

Parameters
`s`	`String`: the detail message
`ex`	`Throwable`: 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 null.

This method predates the general-purpose exception chaining facility. The Throwable.getCause() method is now the preferred means of obtaining this information.

Returns
`Throwable`	the `Exception` that was raised while loading a class