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Java Standard Edition (SE)

UndeclaredThrowableException


compact1, compact2, compact3
java.lang.reflect

Class UndeclaredThrowableException

  • All Implemented Interfaces:
    Serializable


    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."

    Since:
    1.3
    See Also:
    InvocationHandler, Serialized Form
    • Constructor Detail

      • UndeclaredThrowableException

        public UndeclaredThrowableException(Throwable undeclaredThrowable)
        Constructs an UndeclaredThrowableException with the specified Throwable.
        Parameters:
        undeclaredThrowable - the undeclared checked exception that was thrown
      • UndeclaredThrowableException

        public UndeclaredThrowableException(Throwable undeclaredThrowable,
                                            String s)
        Constructs an UndeclaredThrowableException with the specified Throwable and a detail message.
        Parameters:
        undeclaredThrowable - the undeclared checked exception that was thrown
        s - the detail message
    • Method Detail

      • getUndeclaredThrowable

        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:
        the undeclared checked exception that was thrown
      • getCause

        public Throwable getCause()
        Returns the cause of this exception (the Throwable instance wrapped in this UndeclaredThrowableException, which may be null).
        Overrides:
        getCause in class Throwable
        Returns:
        the cause of this exception.
        Since:
        1.4


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