Displaying a pgn image fails in some case
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Key: MGNLDAM-85
URL: http://jira.magnolia-cms.com/browse/MGNLDAM-85
Project: Magnolia DAM Module
Issue Type: Bug
Affects Versions: 1.0 Alpha2 s011
Reporter: Eric Hechinger
Priority: Critical
Fix For: 1.0 Alpha2 s012
For some pgn (dam/demo-project/img/logo/magnolia-logo), we have the following
exception when displaying an Image.
This is related to the following resolved issue MGNLIMG-38.
>From ImageUtil.class
final boolean isOpaque = img.getTransparency() == Transparency.OPAQUE;
if (!isOpaque && !outputFormat.supportsTransparency()) {
final WritableRaster raster = img.getRaster();
final WritableRaster newRaster = raster.createWritableChild(0, 0,
img.getWidth(), img.getHeight(), 0, 0, new int[]{0, 1, 2});
// create a ColorModel that represents the one of the ARGB except
the alpha channel
final DirectColorModel cm = (DirectColorModel) img.getColorModel();
The image isOpack = false && supportsTransparency = false --> jump in the if
statement.
Issue is that this cast is failing: (DirectColorModel) img.getColorModel()
img.getColoredModel() --> type ComponentColorModel
and ComponentColorModel is not a sub class of DirectColorModel.
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Caused by: java.lang.ClassCastException: java.awt.image.ComponentColorModel
cannot be cast to java.awt.image.DirectColorModel
at
info.magnolia.imaging.util.ImageUtil.flattenTransparentImageForOpaqueFormat(ImageUtil.java:68)
at
info.magnolia.imaging.DefaultImageStreamer.serveImage(DefaultImageStreamer.java:68)
at
info.magnolia.imaging.caching.CachingImageStreamer.generateAndStore(CachingImageStreamer.java:197)
at
info.magnolia.imaging.caching.CachingImageStreamer$1.apply(CachingImageStreamer.java:118)
at
info.magnolia.imaging.caching.CachingImageStreamer$1.apply(CachingImageStreamer.java:114)
at
com.google.common.collect.ComputingConcurrentHashMap$ComputingValueReference.compute(ComputingConcurrentHashMap.java:355)
at
com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.compute(ComputingConcurrentHashMap.java:184)
at
com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.getOrCompute(ComputingConcurrentHashMap.java:153)
at
com.google.common.collect.ComputingConcurrentHashMap.getOrCompute(ComputingConcurrentHashMap.java:69)
at
com.google.common.collect.ComputingConcurrentHashMap$ComputingMapAdapter.get(ComputingConcurrentHashMap.java:393)
at
info.magnolia.imaging.caching.CachingImageStreamer.serveImage(CachingImageStreamer.java:136)
... 82 more
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