On 10/31/2011 09:49 PM, Dr Andrew John Hughes wrote: > On 16:48 Mon 31 Oct , Andrew Haley wrote: >> >>> Am 31.10.2011 17:00, schrieb Deepak Bhole: >>> >>>> It looks like a known bug in the 6 compiler related to interface >>>> inheritance and covariant return types. I think this is the commit >>>> that fixed it in 7: >>>> >>>> http://hg.openjdk.java.net/jdk7/jdk7/langtools/rev/4a3b9801f7a0 >>>> >>>> If you have code that resembles the above and would like to see the >>>> fix backported to 6, please feel free to open a bug. >>> >>> Thanks. Bug is open (#750301) >> >> This one should be submitted to the tools people @ Oracle rather than >> just patched into Icedtea, I think. Their input might avoid us breaking >> anything. > > It's worth a try, but they've been pretty unhelpful in the past. The > OpenJDK6 toolset is a mess (being some fairly random point in the > development of the 7 compiler) and their main contribution has being > to break the TCK run. Perhaps, but we really need their input for anything non-trivial on the compiler. The type inference logic is very convoluted, and it is extremely difficult for anyone to look at a patch that fixes one thing and know that it doesn't break something else. It's really easy for a fix to "work" for, say, building JBoss but not Eclipse. It's arguable whether a patch for something that has been wrong for the whole life of OpenJDK 6 should go in now. > On that note, a good initial test for this would be to see if the patched > version passes the TCK. Then post to compiler-dev and jdk6-dev. Right. That's the right way to start. Andrew. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
