# Class UnformattableObjectException

Object
Throwable
Exception
RuntimeException
UnsupportedOperationException
UnformattableObjectException

All Implemented Interfaces:
  `Serializable`

public class UnformattableObjectException extends UnsupportedOperationException
Thrown by `FormattableObject​.toWKT()` when an object cannot be formatted as WKT. A formatting may fail because an object contains properties which cannot be represented by the standard WKT elements. This exception may also be thrown by `Formatter` if the object given to an `append(…)` method is an instance of an unsupported class.

## Examples

An engineering CRS cannot be represented in the WKT 1 format if all axes do not use the same unit of measurement. However, such CRS can be represented in the WKT 2 format.

Since:
  0.4
See Also:
  - `Formatter​.setInvalidWKT(IdentifiedObject, Exception)`
  - Serialized Form

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `UnformattableObjectException()`
  Constructs a new exception with no message.
  `UnformattableObjectException(String message)`
  Constructs a new exception with the specified detail message.
  `UnformattableObjectException(String message, Throwable cause)`
  Constructs a new exception with the specified detail message and cause.
  `UnformattableObjectException(Throwable cause)`
  Constructs a new exception with the specified cause.

- ## Method Summary

  ### Methods inherited from class Throwable

  `addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

  ### Methods inherited from class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### UnformattableObjectException

    public UnformattableObjectException()
    Constructs a new exception with no message.

  - ### UnformattableObjectException

    public UnformattableObjectException(String message)
    Constructs a new exception with the specified detail message.
    Parameters:
      `message` - the detail message, or `null` if none.

  - ### UnformattableObjectException

    public UnformattableObjectException(String message, Throwable cause)
    Constructs a new exception with the specified detail message and cause.
    Parameters:
      `message` - the detail message, or `null` if none.
      `cause` - the cause, or `null` if none.

  - ### UnformattableObjectException

    public UnformattableObjectException(Throwable cause)
    Constructs a new exception with the specified cause.
    Parameters:
      `cause` - the cause, or `null` if none.