Thanks for the bug report - the Properties class wasn't my work, but
I've included the Classpath mailing list in the recipients of this
message, so whoever wrote it can comment on whether this is a legitimate
bug, and fix it for you.
Thanks for trying out GNU Classpath! :)
Stuart.
Matt Mucklo wrote:
>
> I've found a possible bug in java.util.Properties.save().
>
> It seems that you create a PrintWriter object as the
> means to write out to the stream that's passed in.
>
> Unfortunately, it seems that the PrintWriter object is
> buffered. Since you don't close it after returning, the
> output has a chance of never getting written out to
> the underlying stream.
>
> A simple solution would be to do a PrintWriter.flush()
> call before exiting the method.
>
> // Test case
>
> import java.util.Properties;
> import java.io.FileInputStream;
> import java.io.IOException;
> import java.io.FileOutputStream;
>
> public class TestSaveProperties {
>
> public static void main(String[] args) {
> if( args.length != 2 ) {
> System.err.println("usage: TestSaveProperties <inputFile>
> <outputFile>");
> System.exit(1);
> }
>
> try {
> Properties properties = new Properties();
> FileInputStream fis = new FileInputStream(args[0]);
> properties.load(fis);
> fis.close();
> FileOutputStream fos = new FileOutputStream(args[1]);
> properties.save(fos, "Test Save");
> fos.close();
> }
> catch( Exception e ) {
> e.printStackTrace();
> }
> }
> }
