public class UndeclaredThrowableException extends RuntimeException
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."
InvocationHandler
, Serialized Formpublic UndeclaredThrowableException(Throwable undeclaredThrowable)
Constructs an UndeclaredThrowableException
with the specified Throwable
.
undeclaredThrowable
- the undeclared checked exception that was thrownpublic UndeclaredThrowableException(Throwable undeclaredThrowable, String s)
Constructs an UndeclaredThrowableException
with the specified Throwable
and a detail message.
undeclaredThrowable
- the undeclared checked exception that was throwns
- the detail messagepublic 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.
public Throwable getCause()
Returns the cause of this exception (the Throwable
instance wrapped in this UndeclaredThrowableException
, which may be null
).
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Documentation extracted from Debian's OpenJDK Development Kit package.
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