This exception is thrown when an application attempts to use NULL in a case where an object is required.  
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import "NullPointerException.idl";
 
  
| Additional Inherited Members | |
|  Public Attributes inherited from Exception | |
| string | Message | 
| gives a detailed description of the reason, why the exception was thrown. | |
| com::sun::star::uno::XInterface | Context | 
| should contain a reference to the original, which raised the exception. | |
This exception is thrown when an application attempts to use NULL in a case where an object is required. 
Applications should throw instances of this class to indicate other illegal uses of the NULL object.