[FOP-1718] PCL Painter not thread safe.

• Type: Bug
• Status: Resolved
• Resolution: Cannot Reproduce
• Affects Version/s: 2.5
• Component/s: renderer/pcl
• Environment: Operating System: Windows XP; Platform: PC
• External issue ID: 48062
• Assignee: Unassigned
• Reporter: Chris Bowditch
• Created: 27/Oct/09 01:46
• Updated: 16/May/18 12:55
• Resolved: 16/May/18 12:55

Description

When using multiple threads to render the attached IF XML to PCL using the
Painter the following exception occurs. The exception does not occur when only
a single thread is used. In a quick debugging session we observed that when the
error occurs the method PCLPainter.getTextBoundingBox returns a rectangle with
negative width

java.lang.NegativeArraySizeException
at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:42)
at java.awt.image.Raster.createInterleavedRaster(Raster.java:253)
at java.awt.image.Raster.createInterleavedRaster(Raster.java:194)
at
org.apache.xmlgraphics.image.loader.impl.ImageConverterG2D2Bitmap.createGrayBufferedImageWithAlpha(ImageConve
rterG2D2Bitmap.java:170)
at
org.apache.xmlgraphics.image.loader.impl.ImageConverterG2D2Bitmap.paintToBufferedImage(ImageConverterG2D2Bitm
ap.java:108)
at
org.apache.xmlgraphics.image.loader.impl.ImageConverterG2D2Bitmap.convert(ImageConverterG2D2Bitmap.java:74)
at
org.apache.xmlgraphics.image.loader.pipeline.ImageProviderPipeline.execute(ImageProviderPipeline.java:173)
at
org.apache.xmlgraphics.image.loader.ImageManager.convertImage(ImageManager.java:330)
at
org.apache.fop.render.intermediate.AbstractIFPainter.drawImage(AbstractIFPainter.java:209)
at
org.apache.fop.render.pcl.PCLPainter.paintMarksAsBitmap(PCLPainter.java:304)
at
org.apache.fop.render.pcl.PCLPainter.drawTextAsBitmap(PCLPainter.java:489)
at org.apache.fop.render.pcl.PCLPainter.drawText(PCLPainter.java:329)
at
org.apache.fop.render.intermediate.IFParser$Handler$TextHandler.endElement(IFParser.java:487)
at
org.apache.fop.render.intermediate.IFParser$Handler.endElement(IFParser.java:277)