Please comment at your convenience.

Issue:  https://bugs.openjdk.java.net/browse/JDK-8154058
Solution:       Resolve as “Not an Issue”

According to [1],

The ignoreMetadata parameter, if set to true, allows the reader to disregard 
any metadata encountered during the read. Subsequent calls to the 
getStreamMetadata and getImageMetadata methods may return null, and an IIOImage 
returned from readAll may return null from their getMetadata method. Setting 
this parameter may allow the reader to work more efficiently. The reader may 
choose to disregard this setting and return metadata normally. 

According to [2], setting ignoreMetadata has the effect of asking the reader to 
ignore any TIFF Fields which are not contained in any of the TIFFTagSets known 
to the reader. This seems to be within the scope of the specification in [1].

As a result of the foregoing I suggest that the issue be resolved as “Will not 
Fix.”

Thanks,

Brian

[1] 
http://download.java.net/java/jdk9/docs/api/javax/imageio/ImageReader.html#setInput-java.lang.Object-boolean-boolean-
[2] 
http://hg.openjdk.java.net/jdk9/client/jdk/file/d5dc0c4fb473/src/java.desktop/share/classes/javax/imageio/metadata/doc-files/tiff_metadata.html,
 lines 219-234

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