Sorry to send this to so many unconnected people, and doubly sorry to Per if he's already on one of the two lists this is sent to. I've been testing an application I'm writing using various free JVMs, because I want to make sure it works on at least one of them before I release it as free software itself. My application makes use of the class gnu.text.LineBufferedReader from Kawa by Per Bothner, which is available at http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/kawa/gnu/text/LineBufferedReader.java?rev=1.3&content-type=text/plain&cvsroot=kawa It appears that when I use LineBufferedReader under ORP with Classpath, I lose the first character of every line except the first line - that is, I lose the character following every newline. This behavior does not happen on Kaffe or Sun/Blackdown. I'd like to try to track down this problem, but I don't really understand the code to LineBufferedReader terribly well. I can think of three possible causes, but I don't know enough about ORP, Classpath or LineBufferedReader to know how to track down which applies here. 1) Problem with the clever optimization that ORP does, causing some check (eg the check for whether the CR is followed by an LF) to be omitted or always return true, so that LineBufferedReader ignores the character. This, of course, would be an ORP problem. 2) Problem with Classpath's implementation of <something>Reader (in my testing, I always back it with a FileReader - the bug could be there) which isn't exposed under simple usage patterns, but LineBufferedReader does something more complicated (what?) that triggers it. This, of course, would be a Classpath problem. 3) A bug or assumption in LineBufferedReader that isn't exposed under Sun's Java or Kaffe. I consider this unlikely, but to be fair I have to mention the possibility. I certainly don't understand the code well enough to assert firmly that this *isn't* the case. The test case I am using is as follows. Note that the bug is *not* displayed when LineBufferedReader is removed and the FileReader is used directly. import java.io.Reader; import java.io.FileReader; import java.io.IOException; public class OrpBug { public static void main(String[] args) throws IOException { for (int i = 0; i < args.length; i++) { readFile(args[i]); } } public static void readFile(String name) throws IOException { Reader fr = new gnu.text.LineBufferedReader(new FileReader(name)); int ch = fr.read(); while (ch != -1) { System.out.write(ch); ch = fr.read(); } fr.close(); } } If you run "orp OrpBug filename" where filename is any text file on your machine, you should get an equivalent of "cat". You actually get an equivalent of "cat | cut -c2-" (except that the very first character in each file is not cut off). The version of LineBufferedReader I am using is the one linked above. I am using the debian packages of ORP and Classpath: ii orp 1.0.5-1 Java VM and JIT from Intel Research Lab. ii orp-classpath 0.02-3 Free java class libraries (specific to ORP J Any suggestions as to how to track down this problem and fix it (in ORP, Classpath or LineBufferedReader) would be much appreciated. Thanks, Stuart. _______________________________________________ Classpath mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/classpath
