UnknownTypeException (Java SE 10 & JDK 10 )

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException
    - - javax.lang.model.UnknownEntityException
      - javax.lang.model.type.UnknownTypeException

All Implemented Interfaces:

Serializable
```
public class UnknownTypeException
extends UnknownEntityException
```
Indicates that an unknown kind of type was encountered. This can occur if the language evolves and new kinds of types are added to the TypeMirror hierarchy. May be thrown by a type visitor to indicate that the visitor was created for a prior version of the language.

Since:

1.6

See Also:

TypeVisitor.visitUnknown(javax.lang.model.type.TypeMirror, P), Serialized Form

Constructor Summary

Constructors
Constructor	Description
`UnknownTypeException(TypeMirror t, Object p)`	Creates a new `UnknownTypeException`.The `p` parameter may be used to pass in an additional argument with information about the context in which the unknown type was encountered; for example, the visit methods of `TypeVisitor` may pass in their additional parameter.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`getArgument()`	Returns the additional argument.
`TypeMirror`	`getUnknownType()`	Returns the unknown type.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

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