stty -cooked not usable since cygwin-3.1.1-1

[Rabbe Fogelholm <rabbe at bahnhof dot se>]

I am running a console Java program that is started from a shellscript
wrapper. Before invoking Java the wrapper calls `stty -cooked'. The Java
program polls the keyboard using System.in.available() and reads
characters immediately using System.in.read(), without waiting for the
Enter key to be pressed.

This way of combining `stty -cooked' and Java has stopped working since
version 3.1.1-1 of the Cygwin package. The Java thread that reads the
keyboard hangs until Enter is pressed, which is not desirable.

I had to downgrade to version 3.0.7-1 to resolve the problem.

Versioning information:

java version "1.8.0_202"
Java(TM) SE Runtime Environment (build 1.8.0_202-b08)
Java HotSpot(TM) 64-Bit Server VM (build 25.202-b08, mixed mode)

OS Name: Microsoft Windows 10 Pro
Version: 10.0.17763 Build 17763
System Type: x64-based PC

See also the enclosed cygcheck.out.

To demonstrate the issue I enclose a small Java program that should be
able to read single keystrokes when `stty -cooked' is in effect.

BR / Rabbe Fogelholm, Sollentuna, Sweden

Attachment: cygcheck.out
Description: Text document

Attachment: DemoNonCooked.java
Description: Text document

Attachment: DemoNonCooked.class
Description: Binary data

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