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## javacardx.external
Class ExternalException

    java.lang.Object
      java.lang.Throwable
          java.lang.Exception
              java.lang.RuntimeException
                  javacard.framework.CardRuntimeException
                      javacardx.external.ExternalException

    @TransactionType(value=NOT_SUPPORTED)
    public class ExternalException

extends CardRuntimeException

`ExternalException` represents an external subsystem related exception.

Direct instances of this exception class are not bound to any context and can be passed between contexts without any restrictions. Objects created and returned by the methods of this class are owned by the caller. In particular, a call to the `Throwable.toString()` returns a String instance bound to the owner context of the caller.

See Runtime Environment Specification for the Java Card Platform, Connected Edition, chapter 7 for details regarding transfer of ownership.

Since:
  2.2.2

Field Summary
`static short` | `INTERNAL_ERROR` This reason code is used to indicate that an unrecoverable external access error occurred.
`static short` | `INVALID_PARAM` This reason code is used to indicate that an input parameter is invalid.
`static short` | `NO_SUCH_SUBSYSTEM` This reason code is used to indicate that specified external subsystem is not available.

Constructor Summary
`ExternalException(short reason)` Constructs a `ExternalException` with the specified reason.

Method Summary
`static void` | `throwIt(short reason)` Deprecated. Deprecated for extended applets and web applications on the Connected Edition of the Java Card 3 Platform. Use constructor instead.

Methods inherited from class javacard.framework.CardRuntimeException
`getReason, setReason`

Methods inherited from class java.lang.Throwable
`getMessage, printStackTrace, toString`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### NO_SUCH_SUBSYSTEM

    public static final short NO_SUCH_SUBSYSTEM

  This reason code is used to indicate that specified external subsystem is not available.

  See Also:
    Constant Field Values

### INVALID_PARAM

    public static final short INVALID_PARAM

  This reason code is used to indicate that an input parameter is invalid.

  See Also:
    Constant Field Values

### INTERNAL_ERROR

    public static final short INTERNAL_ERROR

  This reason code is used to indicate that an unrecoverable external access error occurred.

  See Also:
    Constant Field Values

Constructor Detail

### ExternalException

    public ExternalException(short reason)

  Constructs a `ExternalException` with the specified reason.

  Parameters:
    `reason` - the reason for the exception

Method Detail

### throwIt

    public static void throwIt(short reason)

  Deprecated. Deprecated for extended applets and web applications on the Connected Edition of the Java Card 3 Platform. Use constructor instead.

  Throws a new instance of `ExternalException` with the specified reason.

  Note that a new instance is thrown upon each call to this method.

  This method is for backward compatibility with Java Card 2.x and for interoperability of classic applet applications with the Java Card 3 Classic edition.

  Parameters:
    `reason` - the reason for the exception
  Throws:
    `ExternalException` - always

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Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.