UnknownElementException

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException
    - - javax.lang.model.UnknownEntityException
      - javax.lang.model.element.UnknownElementException

All Implemented Interfaces:

java.io.Serializable
```
public class UnknownElementException
extends javax.lang.model.UnknownEntityException
```
Indicates that an unknown kind of element was encountered. This can occur if the language evolves and new kinds of elements are added to the Element hierarchy. May be thrown by an element visitor to indicate that the visitor was created for a prior version of the language.

Since:

1.6

See Also:

ElementVisitor.visitUnknown(javax.lang.model.element.Element, P), Serialized Form

Constructor Summary

Constructors
Constructor Description

UnknownElementException(Element e, java.lang.Object p)
Creates a new UnknownElementException.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`getArgument()`	Returns the additional argument.
`Element`	`getUnknownElement()`	Returns the unknown element.

Methods inherited from class java.lang.Throwable
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

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

- Constructor Detail
  - UnknownElementException
```
public UnknownElementException(Element e,
                               java.lang.Object p)
```
    Creates a new UnknownElementException. The p parameter may be used to pass in an additional argument with information about the context in which the unknown element was encountered; for example, the visit methods of ElementVisitor may pass in their additional parameter.
    
    Parameters:
    
    e - the unknown element, may be null
    
    p - an additional parameter, may be null
- Method Detail
  - getUnknownElement
```
public Element getUnknownElement()
```
    Returns the unknown element. The value may be unavailable if this exception has been serialized and then read back in.
    
    Returns:
    
    the unknown element, or null if unavailable
  - getArgument
```
public java.lang.Object getArgument()
```
    Returns the additional argument.
    
    Returns:
    
    the additional argument, or null if unavailable