UndeclaredThrowableException (Java Platform SE 8 ) (original) (raw)

• java.lang.Object

• • java.lang.Throwable
  • • java.lang.Exception
      • • java.lang.RuntimeException
          * * java.lang.reflect.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 thethrows 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 thegetUndeclaredThrowable() method.UndeclaredThrowableException extendsRuntimeException, 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 Summary

  Constructors

  Constructor	Description
  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.

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	Description
  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 thisUndeclaredThrowableException, which may be null.

     * ### Methods inherited from class java.lang.[Throwable](../../../java/lang/Throwable.html "class in java.lang")  
     `[addSuppressed](../../../java/lang/Throwable.html#addSuppressed-java.lang.Throwable-), [fillInStackTrace](../../../java/lang/Throwable.html#fillInStackTrace--), [getLocalizedMessage](../../../java/lang/Throwable.html#getLocalizedMessage--), [getMessage](../../../java/lang/Throwable.html#getMessage--), [getStackTrace](../../../java/lang/Throwable.html#getStackTrace--), [getSuppressed](../../../java/lang/Throwable.html#getSuppressed--), [initCause](../../../java/lang/Throwable.html#initCause-java.lang.Throwable-), [printStackTrace](../../../java/lang/Throwable.html#printStackTrace--), [printStackTrace](../../../java/lang/Throwable.html#printStackTrace-java.io.PrintStream-), [printStackTrace](../../../java/lang/Throwable.html#printStackTrace-java.io.PrintWriter-), [setStackTrace](../../../java/lang/Throwable.html#setStackTrace-java.lang.StackTraceElement:A-), [toString](../../../java/lang/Throwable.html#toString--)`  
     * ### Methods inherited from class java.lang.[Object](../../../java/lang/Object.html "class in java.lang")  
     `[clone](../../../java/lang/Object.html#clone--), [equals](../../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../../java/lang/Object.html#finalize--), [getClass](../../../java/lang/Object.html#getClass--), [hashCode](../../../java/lang/Object.html#hashCode--), [notify](../../../java/lang/Object.html#notify--), [notifyAll](../../../java/lang/Object.html#notifyAll--), [wait](../../../java/lang/Object.html#wait--), [wait](../../../java/lang/Object.html#wait-long-), [wait](../../../java/lang/Object.html#wait-long-int-)`

• • Constructor Detail

     * #### UndeclaredThrowableException  
     public UndeclaredThrowableException([Throwable](../../../java/lang/Throwable.html "class in java.lang") undeclaredThrowable)  
     Constructs an `UndeclaredThrowableException` with the specified `Throwable`.  
     Parameters:  
     `undeclaredThrowable` \- the undeclared checked exception that was thrown  
     * #### UndeclaredThrowableException  
     public UndeclaredThrowableException([Throwable](../../../java/lang/Throwable.html "class in java.lang") undeclaredThrowable,  
                                         [String](../../../java/lang/String.html "class in java.lang") 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](../../../java/lang/Throwable.html "class in java.lang") 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()](../../../java/lang/Throwable.html#getCause--) method is now the preferred means of obtaining this information.  
    Returns:  
    the undeclared checked exception that was thrown  
    * #### getCause  
    public [Throwable](../../../java/lang/Throwable.html "class in java.lang") getCause()  
    Returns the cause of this exception (the `Throwable` instance wrapped in this `UndeclaredThrowableException`, which may be `null`).  
    Overrides:  
    `[getCause](../../../java/lang/Throwable.html#getCause--)` in class `[Throwable](../../../java/lang/Throwable.html "class in java.lang")`  
    Returns:  
    the cause of this exception.  
    Since:  
    1.4

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