Exception reading a CMYK Jpeg about thumbnailator HOT 7 CLOSED

Note
------
Use of "TwelveMonkeys ImageIO" fixes this particular issue.
https://github.com/haraldk/TwelveMonkeys

(Thank you for the tip, marcus!)

Thank you for reporting this issue along with a supplemental link.

I have been able to reproduce this issue with Thumbnailator 0.4.2, and it does 
indeed appear to be a problem with the JPEG reader that is being used by Image 
I/O.

I will look into the link in a little more detail at a later time, but I would 
like to see if there are other ways of implementing a workaround rather than 
having to write an alternate JPEG reader to the one that is provided with Java.

(Image I/O does indeed have many outstanding bugs which have not been addressed 
for close to a decade...)

Once again, thank you for the detailed report.

------------------

The following is the stack trace on Ubuntu 12.04 with Oracle JDK 1.7.0_04:

  Exception in thread "main" javax.imageio.IIOException: Unsupported Image Type
    at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:995)
    at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:966)
    at javax.imageio.ImageReader.read(ImageReader.java:940)
    at net.coobird.thumbnailator.tasks.io.FileImageSource.read(FileImageSource.java:144)
    at net.coobird.thumbnailator.tasks.SourceSinkThumbnailTask.read(SourceSinkThumbnailTask.java:76)
    at net.coobird.thumbnailator.Thumbnailator.createThumbnail(Thumbnailator.java:62)
    at net.coobird.thumbnailator.Thumbnails$Builder.toFile(Thumbnails.java:2409)
    at Issue40.main(Issue40.java:15)


The following is the stacktrace on Ubuntu 12.04 and OpenJDK 1.6.0_24:

  Exception in thread "main" javax.imageio.IIOException: Incompatible color conversion
    at com.sun.imageio.plugins.jpeg.JPEGImageReader.checkColorConversion(JPEGImageReader.java:927)
    at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:1028)
    at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:984)
    at javax.imageio.ImageReader.read(ImageReader.java:940)
    at net.coobird.thumbnailator.tasks.io.FileImageSource.read(FileImageSource.java:144)
    at net.coobird.thumbnailator.tasks.SourceSinkThumbnailTask.read(SourceSinkThumbnailTask.java:76)
    at net.coobird.thumbnailator.Thumbnailator.createThumbnail(Thumbnailator.java:62)
    at net.coobird.thumbnailator.Thumbnails$Builder.toFile(Thumbnails.java:2409)
    at Issue40.main(Issue40.java:15)

Yes I guess the ideal would be to submit a patch to the JDK:

http://openjdk.java.net/contribute/

for bug

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5100094

Unfortunately I myself haven't the time to work towards that at the moment.

Adding a link to a question on StackOverflow regarding reading CMYK JPEG images 
using Java Image I/O:

http://stackoverflow.com/questions/2408613/problem-reading-jpeg-image-using-imag
eio-readfile-file

FYI: You can workaround this issue by using JPEGImageReader from 

https://github.com/haraldk/TwelveMonkeys