JDK-6782344 : jfreechart_and_jxlayer applet throws NPE on OpenJDK
  • Type: Bug
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 7
  • Priority: P4
  • Status: Closed
  • Resolution: Cannot Reproduce
  • OS: generic
  • CPU: generic
  • Submitted: 2008-12-08
  • Updated: 2011-03-04
  • Resolved: 2011-03-04
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JDK 8
8Resolved
Related Reports
Relates :  
JDK-6967436 - OpenJDK: long lines can fill window (using Pisces, when they're thick or dashed)
Relates :  
JDK-6967433 - OpenJDK: Dashed lines are broken with certain scaling transforms
Description
Applet from http://www.jroller.com/dgilbert/entry/jfreechart_and_jxlayer throws NPE with OpenJDK AA rendered (pisces).
Comments
EVALUATION This is not reproducible since the fixes for 6967436 and 6967433 were integrated. I am closing this as "Not Reproducible".
04-03-2011
EVALUATION We believe this is now fixed in the latest OpenJDK rasterizer, but the fixing engineer cannot run the applet via plugin or compile it from the published sources so we cannot specifically verify it.
14-02-2011
EVALUATION Here is evaluation and suggested fix copied from (http://article.gmane.org/gmane.comp.java.openjdk.2d.devel/498) ------------------------------------------------------------------------------------------ From: Mark Wielaard <mark@...> Subject: [OpenJDK 2D-Dev] Bug in pisces Renderer (uninitialized crossings) Newsgroups: gmane.comp.java.openjdk.2d.devel, gmane.comp.java.openjdk.distro-packaging.devel Date: 2008-10-27 14:53:32 GMT (6 weeks, 5 hours and 13 minutes ago) Hi, There is a bug in the pisces Renderer in crossingListFinished(). Both crossings and crossingIndices might not have been initialized, so have to be checked for being null. They only get initialized if setCrossingsExtents() was called earlier, which might not always be the case when crossingListFinished() is called from _endRendering(). You can see this with for example this applet (you will need to have the IcedTeaPlugin installed): http://www.jroller.com/dgilbert/entry/jfreechart_and_jxlayer The magnifying glass will not work, and you will get an exception: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at sun.java2d.pisces.Renderer.crossingListFinished(Renderer.java:778) at sun.java2d.pisces.Renderer._endRendering(Renderer.java:466) at sun.java2d.pisces.Renderer.endRendering(Renderer.java:478) at sun.java2d.pisces.PiscesRenderingEngine.getAATileGenerator(PiscesRenderingEngine.java:327) at sun.java2d.pipe.AAShapePipe.renderPath(AAShapePipe.java:93) at sun.java2d.pipe.AAShapePipe.fill(AAShapePipe.java:65) at sun.java2d.pipe.ValidatePipe.fill(ValidatePipe.java:160) at sun.java2d.SunGraphics2D.fill(SunGraphics2D.java:2422) at org.jfree.chart.plot.Plot.fillBackground(Plot.java:1021) [...] Attached is the workaround that I checked into IcedTea to make this work reliably: 2008-10-27 Mark Wielaard <mark@...> * patches/icedtea-renderer-crossing.patch: New patch. * Makefile.am (ICEDTEA_PATCHES): Add new patch. * HACKING: Document new patch. Cheers, Mark --- openjdk6/jdk/src/share/classes/sun/java2d/pisces/Renderer.java 2008-08-28 10:14:15.000000000 +0200 +++ openjdk/jdk/src/share/classes/sun/java2d/pisces/Renderer.java 2008-10-27 13:54:25.000000000 +0100 @@ -775,10 +775,10 @@ // Free sorting arrays if larger than maximum size private void crossingListFinished() { - if (crossings.length > DEFAULT_CROSSINGS_SIZE) { + if (crossings != null && crossings.length > DEFAULT_CROSSINGS_SIZE) { crossings = new int[DEFAULT_CROSSINGS_SIZE]; } - if (crossingIndices.length > DEFAULT_INDICES_SIZE) { + if (crossingIndices != null && crossingIndices.length > DEFAULT_INDICES_SIZE) { crossingIndices = new int[DEFAULT_INDICES_SIZE]; } }
08-12-2008