Compressed DICOM issue

[Mark Shanaman]

We're getting broken thumbnails and the following error in a 1.7 instance of XNAT when JPEG Lossless DICOM is received:

java.lang.NoClassDefFoundError: Could not initialize class javax.imageio.ImageIO
        at org.nrg.dcm.Decompress.decompress_image(Decompress.java:249)
        at org.nrg.xnat.archive.GradualDicomImporter.write(GradualDicomImporter.java:576)
        at org.nrg.xnat.archive.GradualDicomImporter.call(GradualDicomImporter.java:333)
        at org.nrg.dcm.CStoreService.doCStore(CStoreService.java:233)
        at org.nrg.dcm.CStoreService.cstore(CStoreService.java:196)
        at org.dcm4che2.net.DicomServiceRegistry.process(DicomServiceRegistry.java:238)
        at org.dcm4che2.net.NetworkApplicationEntity.perform(NetworkApplicationEntity.java:1185)
        at org.dcm4che2.net.Association.onDimseRQ(Association.java:1010)
        at org.dcm4che2.net.PDUDecoder.decodeDIMSE(PDUDecoder.java:530)
        at org.dcm4che2.net.Association.onPDataTF(Association.java:987)
        at org.dcm4che2.net.State$Sta6.receivedPDataTF(State.java:239)
        at org.dcm4che2.net.Association.receivedPDataTF(Association.java:983)
        at org.dcm4che2.net.PDUDecoder.nextPDU(PDUDecoder.java:231)
        at org.dcm4che2.net.Association.run(Association.java:882)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:748)

Has anyone had problems with JAI ImageIO not loading? I see Java Advanced Imaging and imageio jars in the xnat tomcat lib. We had seen similar issues with earlier versions of XNAT where we were missing the right JAI classes, but this seems different where a jar containing the class appears to be there but the class isn't loading.

Mark

[Moore, Charlie]

Mark,

 

I *think* we’ve fixed the issues with those classes since 1.7.2 (in this ticket: https://issues.xnat.org/browse/XNAT-4587). The fix should be included in 1.7.3 when it’s available.

 

Thanks,

Charlie

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[Herrick, Rick]

You can hot-patch this in place by adding the required dependency to your web app. You can download the jar file from here:

 

http://www.dcm4che.org/maven2/com/sun/media/jai_imageio/1.1/jai_imageio-1.1.jar

 

Copy that into the WEB-INF/lib folder in your deployed XNAT application. You’ll need to restart the application for it to get picked up by the classloader. That should get things working properly for you. As Charlie said, this will be in 1.7.3.

 

-- 

Rick Herrick

Sr. Programmer/Analyst

Neuroinformatics Research Group

Washington University School of Medicine