https://bugzilla.novell.com/show_bug.cgi?id=657207
https://bugzilla.novell.com/show_bug.cgi?id=657207#c0 Summary: 2.8.1 regression: System.Drawing.Graphics destructor doesnt check for null before disposing maccontext Classification: Mono Product: Mono: Class Libraries Version: 2.8.x Platform: Macintosh OS/Version: Mac OS X 10.6 Status: NEW Severity: Normal Priority: P5 - None Component: Sys.Drawing. AssignedTo: [email protected] ReportedBy: [email protected] QAContact: [email protected] Found By: Community User Blocker: --- Description of Problem: If I create a Graphics from a bitmap, Graphics.Dispose crashes when called. This is new in 2.8.1--2.8 did not exhibit this problem. Steps to reproduce the problem: $ cat > t.cs using System; using System.Drawing; using System.Drawing.Imaging; using System.Drawing.Drawing2D; public class Foo { public static void Main(string[] args) { Bitmap bmp = new Bitmap(10, 10, PixelFormat.Format24bppRgb); using (Graphics g = Graphics.FromImage(bmp)) { } } } $ gmcs /r:System.Drawing t.cs $ mono --debug t.exe Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at System.Drawing.Graphics.Dispose () [0x00025] in /private/tmp/monobuild/build/BUILD/mono-2.8.1/mcs/class/System.Drawing/System.Drawing/Graphics.cs:300 at Foo.Main (System.String[] args) [0x00000] in <filename unknown>:0 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. You are the assignee for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
