| class  | ACTIVITY_COMPLETED | The ACTIVITY_COMPLETEDsystem exception may be raised on any
 method for which Activity context is accessed. | 
| class  | ACTIVITY_REQUIRED | The ACTIVITY_REQUIREDsystem exception may be raised on any
 method for which an Activity context is required. | 
| class  | BAD_CONTEXT | Exception thrown when an operation is invoked by a client but the passed
 context does not contain the context values required by the operation. | 
| class  | BAD_INV_ORDER | This exception indicates that the caller has invoked operations in
 the wrong order. | 
| class  | BAD_OPERATION | Exception thrown when an object reference denotes an existing object,
 but that the object does not support the operation that was invoked. | 
| class  | BAD_PARAM | Exception  thrown
 when a parameter passed to a call is out of range or
 otherwise considered illegal. | 
| class  | BAD_QOS | The BAD_QOSexception is raised whenever an object cannot
 support the quality of service required by an invocation parameter that
 has a quality of service semantics associated with it. | 
| class  | BAD_TYPECODE | Exception thrown when the ORB has encountered a malformed type code
 (for example, a type code with an invalid TCKindvalue). | 
| class  | CODESET_INCOMPATIBLE | This exception is raised whenever meaningful communication is not possible
 between client and server native code sets. | 
| class  | COMM_FAILURE | This exception is raised if communication is lost while an operation
 is in progress, after the request was sent by the client, but before
 the reply from the server has been returned to the client. | 
| class  | DATA_CONVERSION | This exception is raised if an ORB cannot convert the representation
 of data as marshaled into its native representation or vice-versa. | 
| class  | FREE_MEM | Exception thrown
 when the ORB failed in an attempt to free dynamic memory, for example
 because of heap corruption or memory segments being locked. | 
| class  | IMP_LIMIT | This exception indicates that an implementation limit was
 exceeded in the ORB run time. | 
| class  | INITIALIZE | Exception thrown
 when an ORB has encountered a failure during its initialization,
 such as failure to acquire networking resources or detecting a
 configuration error. | 
| class  | INTERNAL | This exception indicates an internal failure in an ORB, for
 example, if an ORB has detected corruption of its internal
 data structures. | 
| class  | INTF_REPOS | Exception raised
 when an ORB cannot reach the interface
 repository, or some other failure relating to the interface repository
 is detected. | 
| class  | INV_FLAG | Exception thrown
 when an invalid flag was passed to an operation (for example, when
 creating a DII request). | 
| class  | INV_IDENT | This exception indicates that an IDL identifier is syntactically
 invalid. | 
| class  | INV_OBJREF | This exception indicates that an object reference is internally
 malformed. | 
| class  | INV_POLICY | Standard exception  thrown
 when an invocation cannot be made because of an incompatibility between
 Policyoverrides that apply to the particular invocation. | 
| class  | INVALID_ACTIVITY | The INVALID_ACTIVITYsystem exception may be raised on the
 Activity or Transaction services' resume methods if a transaction or
 Activity is resumed in a context different to that from which it was
 suspended. | 
| class  | INVALID_TRANSACTION | Exception  thrown
 when the request carried an invalid transaction context. | 
| class  | MARSHAL | A request or reply from the network is structurally invalid. | 
| class  | NO_IMPLEMENT | This exception indicates that even though the operation that
 was invoked exists (it has an IDL definition), no implementation
 for that operation exists. | 
| class  | NO_MEMORY | Exception  thrown when the ORB run time has run out of memory. | 
| class  | NO_PERMISSION | Exception  thrown when an invocation failed because the caller
 has insufficient privileges. | 
| class  | NO_RESOURCES | Exception thrown when the ORB has encountered some general resource
 limitation. | 
| class  | NO_RESPONSE | This exception is raised if a client attempts to retrieve the result
 of a deferred synchronous call, but the response for the request is
 not yet available. | 
| class  | OBJ_ADAPTER | This exception typically indicates an administrative mismatch, for
 example, a server may have made an attempt to register itself with
 an implementation repository under a name that is already in use,
 or is unknown to the repository. | 
| class  | OBJECT_NOT_EXIST | Exception raised whenever an invocation on a deleted object was
 performed. | 
| class  | PERSIST_STORE | This exception indicates a persistent storage failure, for example,
 failure to establish a database connection or corruption of a
 database. | 
| class  | REBIND | REBINDis raised when the current effective RebindPolicy,
 has a value of NO_REBIND or NO_RECONNECT and an invocation on a bound
 object reference results in a LocateReply message with status
 OBJECT_FORWARD or a Reply message with status LOCATION_FORWARD.
 | 
| class  | TIMEOUT | TIMEOUTis raised when no delivery has been made and the
 specified time-to-live period has been exceeded.
 | 
| class  | TRANSACTION_MODE | The CORBA TRANSACTION_MODEexception is thrown
 by the client ORB if it detects a mismatch between the
 InvocationPolicy in the IOR and the chosen invocation path
 (i.e, direct or routed invocation). | 
| class  | TRANSACTION_REQUIRED | Exception  indicates that the request carried a null transaction context,
 but an active transaction is required. | 
| class  | TRANSACTION_ROLLEDBACK | Exception  thrown when the transaction associated with the request has
 already been rolled back or marked to roll back. | 
| class  | TRANSACTION_UNAVAILABLE | The CORBA TRANSACTION_UNAVAILABLEexception is thrown
 by the ORB when it cannot process a transaction service context because
 its connection to the Transaction Service has been abnormally terminated. | 
| class  | TRANSIENT | Exception  thrown when the ORB attempted to reach an object and failed. | 
| class  | UNKNOWN | This exception is raised if an operation implementation
 throws a non-CORBA exception (such as an exception
 specific to the implementation's programming language),
 or if an operation raises a user exception that does not
 appear in the operation's raises expression. |