**javacardx.external** 
 ====Class ExternalException  ====
  *[[javacard:java-card-api:object|java.lang.Object]] \\ 
    *[[javacard:java-card-api:throwable|java.lang.Throwable]] \\ 
      *[[javacard:java-card-api:exception|java.lang.Exception]] \\ 
        *[[javacard:java-card-api:runtimeexception|java.lang.RuntimeException]] \\ 
          *[[javacard:java-card-api:cardruntimeexception|javacard.framework.CardRuntimeException]] \\ 


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public class **ExternalException**extends [[javacard:java-card-api:CardRuntimeException|CardRuntimeException]] 



ExternalException represents an external subsystem related exception.
 The API classes throw Java Card runtime environment-owned instances of ExternalException.
 Java Card runtime environment-owned instances of exception classes are temporary Java Card runtime environment Entry Point Objects
 and can be accessed from any applet context. References to these temporary objects
 cannot be stored in class variables or instance variables or array components.




**Since:**
  2.2.2 
 



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^ Field Summary ^^ 
| **static short** | **[[javacard:java-card-api:ExternalException#INTERNAL_ERROR|INTERNAL_ERROR]] **          This reason code is used to indicate that an unrecoverable external access error occurred. |
| **static short** | **[[javacard:java-card-api:ExternalException#INVALID_PARAM|INVALID_PARAM]] **          This reason code is used to indicate that an input parameter is invalid. |
| **static short** | **[[javacard:java-card-api:ExternalException#NO_SUCH_SUBSYSTEM|NO_SUCH_SUBSYSTEM]] **          This reason code is used to indicate that specified external subsystem is not available. |

 




^ Constructor Summary ^^ 
| **[[javacard:java-card-api:ExternalException#ExternalException(short)|ExternalException]] **(short reason)          Constructs a ExternalException with the specified reason. |

 




^ Method Summary ^^ 
| **static void** | **[[javacard:java-card-api:ExternalException#throwIt(short)|throwIt]] **(short reason)          Throws the Java Card runtime environment-owned instance of ExternalException with the specified reason. |

 

^ Methods inherited from class javacard.framework.CardRuntimeException ^ 
| [[javacard:java-card-api:CardRuntimeException#getReason()|getReason]] , [[javacard:java-card-api:CardRuntimeException#setReason(short)|setReason]]  |

 

^ Methods inherited from class java.lang.Object ^ 
| [[javacard:java-card-api:Object#equals(java.lang.Object)|equals]]  |

 






^ 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:**[[javacard:java-card-api:constant-values#javacardx.external.ExternalException.NO_SUCH_SUBSYSTEM|Constant Field Values]]  
 

 
 


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 === INVALID_PARAM === 
public static final short **INVALID_PARAM**

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


**See Also:**[[javacard:java-card-api:constant-values#javacardx.external.ExternalException.INVALID_PARAM|Constant Field Values]]  
 

 
 


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 === INTERNAL_ERROR === 
public static final short **INTERNAL_ERROR**

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


**See Also:**[[javacard:java-card-api:constant-values#javacardx.external.ExternalException.INTERNAL_ERROR|Constant Field Values]]  
 

 
 






^ Constructor Detail ^ 



 === ExternalException === 
public **ExternalException**(short reason)

Constructs a ExternalException with the specified reason.
 To conserve on resources use throwIt()
 to use the Java Card runtime environment-owned instance of this class.


**Parameters:**reason - the reason for the exception 
 

 
 






^ Method Detail ^ 



 === throwIt === 
public static void **throwIt**(short reason)

Throws the Java Card runtime environment-owned instance of ExternalException with the specified reason.
 Java Card runtime environment-owned instances of exception classes are temporary Java Card runtime environment Entry Point Objects
 and can be accessed from any applet context. References to these temporary objects
 cannot be stored in class variables or instance variables or array components.
 See //Runtime Environment Specification for the Java Card Platform//, section 6.2.1 for details.

 
 

**Parameters:**reason - the reason for the exception
 
 
**Throws:**
[[javacard:java-card-api:ExternalException|ExternalException]]  - always