**javacard.framework** 
 ====Class SystemException  ====
  *[[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 **SystemException**extends [[javacard:java-card-api:CardRuntimeException|CardRuntimeException]] 



SystemException represents a JCSystem class related exception.
 It is also thrown by the javacard.framework.Applet.register() methods and by
 the AID class constructor.
 These API classes throw Java Card runtime environment-owned instances of SystemException. 
 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.




**See Also:**[[javacard:java-card-api:JCSystem|JCSystem]] , 
[[javacard:java-card-api:Applet|Applet]] , 
[[javacard:java-card-api:AID|AID]]  
 


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^ Field Summary ^^ 
| **static short** | **[[javacard:java-card-api:SystemException#ILLEGAL_AID|ILLEGAL_AID]] **          This reason code is used by the javacard.framework.Applet.register() method to indicate that the input AID parameter is not a legal AID value. |
| **static short** | **[[javacard:java-card-api:SystemException#ILLEGAL_TRANSIENT|ILLEGAL_TRANSIENT]] **          This reason code is used to indicate that the request to create a transient object is not allowed in the current applet context. |
| **static short** | **[[javacard:java-card-api:SystemException#ILLEGAL_USE|ILLEGAL_USE]] **          This reason code is used to indicate that the requested function is not allowed. |
| **static short** | **[[javacard:java-card-api:SystemException#ILLEGAL_VALUE|ILLEGAL_VALUE]] **          This reason code is used to indicate that one or more input parameters is out of allowed bounds. |
| **static short** | **[[javacard:java-card-api:SystemException#NO_RESOURCE|NO_RESOURCE]] **          This reason code is used to indicate that there is insufficient resource in the Card for the request. |
| **static short** | **[[javacard:java-card-api:SystemException#NO_TRANSIENT_SPACE|NO_TRANSIENT_SPACE]] **          This reason code is used by the makeTransient..() methodsto indicate that no room is available in volatile memory for the requested object. |

 




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

 




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



 === ILLEGAL_VALUE === 
public static final short **ILLEGAL_VALUE**

This reason code is used to indicate that one or more input parameters
 is out of allowed bounds.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.ILLEGAL_VALUE|Constant Field Values]]  
 

 
 


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 === NO_TRANSIENT_SPACE === 
public static final short **NO_TRANSIENT_SPACE**

This reason code is used by the makeTransient..() methods 
 to indicate that no room is available in volatile memory for the requested object.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.NO_TRANSIENT_SPACE|Constant Field Values]]  
 

 
 


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 === ILLEGAL_TRANSIENT === 
public static final short **ILLEGAL_TRANSIENT**

This reason code is used to indicate that the request to create
 a transient object is not allowed in the current applet context.
 See //Runtime Environment Specification for the Java Card Platform//, section 6.2.1 for details.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.ILLEGAL_TRANSIENT|Constant Field Values]]  
 

 
 


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 === ILLEGAL_AID === 
public static final short **ILLEGAL_AID**

This reason code is used by the javacard.framework.Applet.register() method
 to indicate that the input AID parameter is not a legal AID value.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.ILLEGAL_AID|Constant Field Values]]  
 

 
 


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 === NO_RESOURCE === 
public static final short **NO_RESOURCE**

This reason code is used to indicate that there is insufficient resource
 in the Card for the request. 
 For example, the Java Card Virtual Machine may throw
 this exception reason when there is insufficient heap space to create a new instance.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.NO_RESOURCE|Constant Field Values]]  
 

 
 


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 === ILLEGAL_USE === 
public static final short **ILLEGAL_USE**

This reason code is used to indicate that the requested function is not
 allowed. For example, JCSystem.requestObjectDeletion() method throws this exception if
 the object deletion mechanism is not implemented.


**See Also:**[[javacard:java-card-api:constant-values#javacard.framework.SystemException.ILLEGAL_USE|Constant Field Values]]  
 

 
 






^ Constructor Detail ^ 



 === SystemException === 
public **SystemException**(short reason)

Constructs a SystemException.
 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 [[javacard:java-card-api:SystemException|SystemException]] 

Throws the Java Card runtime environment-owned instance of SystemException 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:SystemException|SystemException]]  - always