I reacently had problems using Java Advanced Imaging (JAI).
Here is the simplified version of the problem:
SomeClass c = (SomeClass) obj.getSomeClassParent()
not always but it happens sometimes to trigger exception
org.somepackage.SomeClass can't be cast to org.somepackage.SomeClass
Original code
ImageInputStream iis = ImageIO.createImageInputStream(src);
Iterator<ImageReader> iter =
ImageIO.getImageReadersByFormatName("DICOM");
ImageReader reader = iter.next();
DicomImageReadParam param =
(DicomImageReadParam) reader.getDefaultReadParam();
And the original exception
org.dcm4che2.imageio.plugins.dcm.DicomImageReadParam
can't be cast to org.dcm4che2.imageio.plugins.dcm.DicomImageReadPara
and it can happen that the casted class is not the same whit the one form the default class loader.
The question on StackOverflow
![]("http://img215.imageshack.us/img215/3894/exception.jpg"){kind=link}
Posted by Andon Sikavica on January 14, 2010 at 09:55 PM CET #