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http://issues.apache.org/bugzilla/show_bug.cgi?id=42998 Summary: NullPointerException in TiffImageWriter if JPEG is chosen for compression Product: XMLGraphicsCommons Version: 1.2 Platform: Other OS/Version: other Status: NEW Severity: major Priority: P2 Component: ImageWriter AssignedTo: [email protected] ReportedBy: [EMAIL PROTECTED] The following snippet does not work because the parameters are not created correctly. To be precise: 1. Define imageParameters with "JPEG" set as encoding 2. TiffImageWriter#createTIFFEncodeParams(lines 60++) will NOT call setJPEGEncodeParam 3. Eventually TiffImageEncoder gets called and in line 467ff a call to TIFFEncodeParam#getJPEGEncodeParam() is done, which returns null => NPE in line 472 int maxSubH = jep.getHorizontalSubsampling(0); The whole class TiffImageWriter seems untested because if i look at the source i see in line 46 the method public void writeImage(RenderedImage image, OutputStream out) which passes null to as ImageWriterParams to 54:public void writeImage(RenderedImage image, OutputStream out,ImageWriterParams params) throws IOException , which in turn passed null to 61: private TIFFEncodeParam createTIFFEncodeParams(ImageWriterParams params). First statement in that method is if (params.getCompressionMethod() == null) , so you will get NPE here too... org.apache.xmlgraphics.image.writer.ImageWriter imageWriter = new TIFFImageWriter(); MultiImageWriter writer = null; try { writer = imageWriter.createMultiImageWriter(stream); // retrieve writer if (imageWriter != null) { log.info("get image writers parameters"); ImageWriterParams iwp = new ImageWriterParams(); iwp.setCompressionMethod("JPEG"); iwp.setJPEGQuality(compressionQuality, true); iwp.setResolution(param.getDpi()); log.info("render pages"); for (int pageNumber = fromPageNumber; pageNumber <= toPageNumber; pageNumber++) { BufferedImage image; <snip> // do stuff to create image </snip> log.info("write image"); writer.writeImage(image, iwp); } } catch... finally writer.close() -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- Apache XML Graphics Project URL: http://xmlgraphics.apache.org/ To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
