UndeclaredThrowableException

public class UndeclaredThrowableException
extends RuntimeException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException
			↳	java.lang.reflect.UndeclaredThrowableException

Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.

An UndeclaredThrowableException instance contains the undeclared checked exception that was thrown by the invocation handler, and it can be retrieved with the getUndeclaredThrowable() method. UndeclaredThrowableException extends RuntimeException, so it is an unchecked exception that wraps a checked exception.

As of release 1.4, this exception has been retrofitted to conform to the general purpose exception-chaining mechanism. The "undeclared checked exception that was thrown by the invocation handler" that may be provided at construction time and accessed via the getUndeclaredThrowable() method is now known as the cause, and may be accessed via the Throwable.getCause() method, as well as the aforementioned "legacy method."

See also:

InvocationHandler

Summary

Public constructors
`UndeclaredThrowableException(Throwable undeclaredThrowable)` Constructs an `UndeclaredThrowableException` with the specified `Throwable`.
`UndeclaredThrowableException(Throwable undeclaredThrowable, String s)` Constructs an `UndeclaredThrowableException` with the specified `Throwable` and a detail message.

Public methods
`Throwable`	`getCause()` Returns the cause of this exception (the `Throwable` instance wrapped in this `UndeclaredThrowableException`, which may be `null`).
`Throwable`	`getUndeclaredThrowable()` Returns the `Throwable` instance wrapped in this `UndeclaredThrowableException`, which may be `null`.

Inherited methods

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 constructors

UndeclaredThrowableException

Added in API level 1

public UndeclaredThrowableException (Throwable undeclaredThrowable)

Constructs an UndeclaredThrowableException with the specified Throwable.

Parameters
`undeclaredThrowable`	`Throwable`: the undeclared checked exception that was thrown

UndeclaredThrowableException

Added in API level 1

public UndeclaredThrowableException (Throwable undeclaredThrowable, 
                String s)

Constructs an UndeclaredThrowableException with the specified Throwable and a detail message.

Parameters
`undeclaredThrowable`	`Throwable`: the undeclared checked exception that was thrown
`s`	`String`: the detail message

Public methods

getCause

Added in API level 1

public Throwable getCause ()

Returns the cause of this exception (the Throwable instance wrapped in this UndeclaredThrowableException, which may be null).

Returns
`Throwable`	the cause of this exception.

getUndeclaredThrowable

Added in API level 1

public Throwable getUndeclaredThrowable ()

Returns the Throwable instance wrapped in this UndeclaredThrowableException, which may be 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 undeclared checked exception that was thrown