error loading a BufferedImage from dicom

[Ronny Falk]

Hello,

I have a use case where I show a preview of a dicom file.

Iterator<ImageReader> readers = ImageIO.getImageReadersByMIMEType("application/dicom");
//exception here - sometimes

if (readers.hasNext()) {
 //dicom supported
 try {
   BufferedImage image = ImageIO.read(inputFile);
 } catch (IOException ex) {
   ex.printStackTrace();
 }
}

Now the weird thing is, this works - most of the time. When it does not work, I get the following exception:

Error handling a request: 96bb43363de0b44e
! java.lang.NoClassDefFoundError: Could not initialize class javax.imageio.ImageIO
! at com.rfx.cmr.support.ImageConverter.convert(ImageConverter.java:36) ~[cmrapi-1.0.0.jar:na]
...

Did anyone ever experience such an issue. I'm running the converter in a jetty container. My pom.xml has:

<dependency>
  <groupId>org.dcm4che</groupId>
  <artifactId>dcm4che-imageio</artifactId>
  <version>3.3.0</version>
  <exclusions>
       <exclusion>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-log4j12</artifactId>
       </exclusion>
  </exclusions>
</dependency>

thanks for your help,

best,
Ronny