Gregory, Thanks for the pointing at this option - maybe it's worth to publish undocumented properties and other switches, for example, in Wiki?
With this option VM printed before death: Windows reported exception: ACCESS_VIOLATION Registers: EAX: 0x00000000, EBX: 0x00000000, ECX: 0x05d4f860, EDX=0x00060002 ESI: 0x00166040, EDI: 0x052e8190, ESP: 0x05d4f824, EBP=0x00000000 EIP: 0x053124ef CallStack: Java_java_util_zip_Deflater_setDictionaryImpl (File: .............\modules\archive\src\main\native\archive\shared\deflater.c Line: 46 ) m2n_pop_local_handles (File: ..............\vm\port\src\lil\ia32\pi m\m2n_ia32.cpp Line: 229 ) No name (File: ?? Line: ?? ) No name (File: ?? Line: ?? ) I think it'd be better for a developer to see Java stacktrace as well. Am I asking for something impossible?:) On 7/27/06, Gregory Shimansky <[EMAIL PROTECTED]> wrote:
On Thursday 27 July 2006 20:47 Anton Luht wrote: > Hello, > > I've been trying to nail down a small problem - new > java.util.zip.Deflater().setDictionary(new byte[] {}) throws > ArrayIndexOutOfBoundsException in Harmony and doesn't throw in RI. > Trying to find a code that causes this problem I've modified native > code and after one of modifications VM crashed, but not with usual > stacktrace but with popup window (I did it on Windows) that offered to > debug my application. > > I fully understand that it was my fault, etc, but I believe that > Harmony code is not 100% error-free and such errors in native code may > happen. Maybe it's worth to catch such errors and wrap them into > regular Exceptions or at least print stacktrace to the console. There is an undocumented drlvm property vm.assert_dialog which controls this crash popup window on windows. By default this property is true, and you indeed get a debug window when VM or Java native code crash. It is very convenient for debugging because it allows attaching a debugger (if it is installed in your system) right at the crash or failed assert point. To show the stack trace instead you can specify -Dvm.assert_dialog=false to run the program, it should try to dump some stack though I don't think it works for native Java code at the moment. I think crash handler needs improvement in this regard. Whether or not the default of vm.assert_dialog should be true of false is the same argument about whether debug or release mode should be the default. I think it was agreed that debug should be default so far to make it convenient for developers. For you case I think it is preferable to crash window enabled since that is what you want - debug the native code at crash point. To do it you should just compile that native code with debug information and copy pdb file to java executable directory. -- Gregory Shimansky, Intel Middleware Products Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
-- Regards, Anton Luht, Intel Middleware Products Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]