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## javax.media.j3d
Class DanglingReferenceException

    java.lang.Object
      java.lang.Throwable
          java.lang.Exception
              java.lang.RuntimeException
                  javax.media.j3d.DanglingReferenceException

All Implemented Interfaces:
  java.io.Serializable

    public class DanglingReferenceException

extends java.lang.RuntimeException

During a `cloneTree` call an updated reference was requested for a node that did not get cloned. This happens when a sub-graph is duplicated via `cloneTree` and has at least one Leaf node that contains a reference to a Node that has no corresponding node in the cloned sub-graph. This results in two Leaf nodes wanting to share access to the same Node.

If dangling references are to be allowed during the cloneTree call, `cloneTree` should be called with the `allowDanglingReferences` parameter set to `true`.

See Also:
  `Node.cloneTree()`, Serialized Form

Constructor Summary
`DanglingReferenceException()` Create the exception object with default values.
`DanglingReferenceException(java.lang.String str)` Create the exception object that outputs message.

Method Summary

Methods inherited from class java.lang.Throwable
`fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, 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

### DanglingReferenceException

    public DanglingReferenceException()

  Create the exception object with default values.

### DanglingReferenceException

    public DanglingReferenceException(java.lang.String str)

  Create the exception object that outputs message.

  Parameters:
    `str` - the message string to be output.

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