8149562: TIFFField#createFromMetadataNode javadoc should provide information about sibling/child nodes that should be part of parameter node
Summary: Add a throws clause to the TIFFField.createFromMetadataNode method specification stating that the supplied Node parameter must adhere to the TIFFField element structure defined by the TIFF native image metadata DTD.
Reviewed-by: prr, darcy, serb
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