Windows command line processing
Salter, Thomas A
Thomas.Salter at unisys.com
Thu May 23 13:59:53 UTC 2013
I've observed issues with passing non-ASCII characters through the command line to a Java program on Windows. It seems that even though I can invoke java.exe through CreateProcess, passing a full range of Unicode characters, and even though the Java main accepts strings of Unicode characters, the launcher's C main function converts the Unicode to the local ANSI code page. Thus any characters not in the local code page are lost. This seems like a bug to me.
As a proof of concept, I changed jdk/src/share/bin/main.c to call GetCommanLineW instead of GetCommandLine, and then converted that string to UTF-8. For my test, I set sun.jnu.encoding to UTF-8 so that makePlatformString in LauncherHelper would just work.
Tom Salter | Software Engineer | Java & Middleware Development
Unisys | 2476 Swedesford Road | Malvern, PA 19355 | 610-648-2568 | N385-2568
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