On Mon, 29 Apr 2024 11:44:50 GMT, Jan Lahoda <jlah...@openjdk.org> wrote:
> Consider code like: > > public class ConsoleTest { > public static void main(String... args) { > System.console().printf("Hello!"); > } > } > > > When run as: > > $ java ConsoleTest.java >/dev/null > > > it prints `Hello!` to stderr, instead of to stdout (where it would be > redirected). > > The proposed fix is to simply force the use of stdout. Sadly, this cannot be > done solely using JLine configuration, we actually need to change the JLine's > code for that. > > The most tricky part is a test. There are two sub-tests, one effectively > testing a case where all of stdin/out/err are redirected, the other is > attempting to test the case where stdin is attached to a terminal, while > stdout is redirected. The second sub-test using a native functions to create > a pty and to attach to it, and should run in a separate VM, as it leaves the > VM attached to the terminal. This pull request has now been integrated. Changeset: f1509e00 Author: Jan Lahoda <jlah...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/f1509e007d1538acfb1749f7fafc56be2affd2e6 Stats: 183 lines in 3 files changed: 180 ins; 0 del; 3 mod 8330998: System.console() writes to stderr when stdout is redirected Reviewed-by: naoto ------------- PR: https://git.openjdk.org/jdk/pull/18996