Hi,
It is not so easy to reproduce - it really depends on the application start up. (I think in successful case com.aspose.ms.imagecodecs.png.spi.PngImageWriter.write is not registered to process images).
What I have seen in the com.aspose.ms.imagecodecs.png.spi.PngImageWriter.a method
private static void a(BufferedImage bufferedimage, IIOMetadata iiometadata)
{
try
{
float f = ((Float)bufferedimage.getProperty(“dpiX”)).floatValue();
bufferedimage = ((Float)bufferedimage.getProperty(“dpiY”)).floatValue();
double d = (1.0D * (double)bufferedimage) / 10D / 2.54D;
double d1 = (1.0D * (double)f) / 10D / 2.54D;
(bufferedimage = new IIOMetadataNode(“HorizontalPixelSize”)).setAttribute(“value”, Double.toString(d));
IIOMetadataNode iiometadatanode;
(iiometadatanode = new IIOMetadataNode(“VerticalPixelSize”)).setAttribute(“value”, Double.toString(d1));
IIOMetadataNode iiometadatanode1;
(iiometadatanode1 = new IIOMetadataNode(“Dimension”)).appendChild(bufferedimage);
iiometadatanode1.appendChild(iiometadatanode);
(bufferedimage = new IIOMetadataNode(“javax_imageio_1.0”)).appendChild(iiometadatanode1);
if(iiometadata != null)
iiometadata.mergeTree(“javax_imageio_1.0”, bufferedimage);
return;
}
catch(Exception _ex)
{
com.aspose.ms.System.b.a.a(“PNG dpi metadata was not saved”);
}
}
1. Exception is catched but it is not propogated to the com.aspose.ms.System.b.a.a
2. pdf-4.1.2 has dependency on com.aspose.ms.System.b.a which is not in the classpath (according to log).
But:
$ find . -name ‘.jar’ -print0 | xargs -0 -I ‘{}’ sh -c 'jar tf {} | grep PngImageWriter.class && echo {}'
com/aspose/ms/imagecodecs/png/spi/PngImageWriter.class
./apache-tomcat-7.0.47/webapps/ROOT/WEB-INF/lib/pdf-4.1.2.jar
$ find . -name '.jar’ -print0 | xargs -0 -I ‘{}’ sh -c 'jar tf {} | grep com/aspose/ms/System/b/a.class && echo {}'
com/aspose/ms/System/b/a.class
./apache-tomcat-7.0.47/webapps/ROOT/WEB-INF/lib/pdf-4.1.2.jar
com.aspose.ms.System.b.a is in the pdf-4.1.2.jar.
I was not able to reproduce this issue on Windows (linux only).
3. com.aspose.ms.System.b.a.a method is empty.
Do you have any recommendation how to fix it?
(Could check whether dpiX/dpiY is not
/**
* The UndefinedProperty object should be returned whenever a
* property which was not defined for a particular image is fetched.
*/
public static final Object UndefinedProperty = new Object();
help?
)
Regards
Martin