On Wed, 26 Mar 2025 07:54:48 GMT, Jan Lahoda <[email protected]> wrote:
> The `java.io.Console` has several backends: a simple on in `java.base`, a
> more convenient one in `jdk.internal.le` (with line-reading based on JLine)
> and one for JShell.
>
> The backend based on JLine is proving to be a somewhat problematic - JLine is
> very powerful, possibly too powerful and complex for the simple task of
> editing a line with no completion, no history, no variables, no commands,
> etc. As a consequence, there are inevitable sharp edges in this backend.
>
> The idea in this PR is to replace the use of JLine in the `jdk.internal.le`
> backend with a simple escape code interpreter, that only handles a handful of
> keys/codes (left/right arrow, home, end, delete, backspace, enter), and
> ignores the rest. The goal is to have something simple with less surprising
> behavior.
Can you coordinate with Naoto on this? There is a CSR in progress to switch
Console back to using the java.base implementation by default.
src/java.base/share/classes/module-info.java line 172:
> 170: java.rmi,
> 171: jdk.charsets,
> 172: jdk.internal.le,
What code in JLine is using shared secrets? I wonder what we need to change to
avoid this.
src/java.base/share/classes/module-info.java line 304:
> 302: exports sun.nio.cs to
> 303: jdk.charsets,
> 304: jdk.internal.le;
Same thing here.
src/jdk.internal.le/share/classes/jdk/internal/console/SimpleConsoleReader.java
line 51:
> 49: }
> 50:
> 51: private static void doReadImpl(Reader reader, Writer out, boolean
> password, int firstLineOffset, IntSupplier terminalWidthSupplier,
> CleanableBuffer result) throws IOException {
These overly long lines make it really hard to see the changes going forward so
I think trim back some of these to make it easy to look at diffs in the future.
-------------
PR Comment: https://git.openjdk.org/jdk/pull/24242#issuecomment-2753642709
PR Review Comment: https://git.openjdk.org/jdk/pull/24242#discussion_r2013662676
PR Review Comment: https://git.openjdk.org/jdk/pull/24242#discussion_r2013664086
PR Review Comment: https://git.openjdk.org/jdk/pull/24242#discussion_r2013660028
