Bug ID: JDK-8299689 Make use of JLine for Console as "opt-in"

JDK-8299689 : Make use of JLine for Console as "opt-in"

Type: Bug
Component: core-libs
Sub-Component: java.io
Affected Version: 20

Priority: P3
Status: Resolved
Resolution: Fixed
OS: generic
CPU: generic

Submitted: 2023-01-05
Updated: 2025-03-07
Resolved: 2023-01-09

Versions (Unresolved/Resolved/Fixed)

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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 20	JDK 21
20 b31Fixed	21Fixed

Related Reports

CSR :	JDK-8299690 - Make use of JLine for Console as "opt-in"
Duplicate :	JDK-8299137 - Regression >4% on SpringBoot in b27 on x64 and aarch64
Relates :	JDK-8299687 - Modify JLine library not to spawn native processes
Relates :	JDK-8351435 - Change JLine Console implementation back to opt-in
Relates :	JDK-8299685 - Regression >4% on SpringBoot in b27 on x64 and aarch64
Relates :	JDK-8308591 - JLine as the default Console provider
Relates :	JDK-8295803 - Console should be usable in jshell and other environments

Description

The enhancement introduced in JDK-8295803 uses the `JLine` library (`jdk.internal.le` module) as the `java.io.Console` implementation by default. This resulted in the performance regression reported in JDK-8299685. Also introduces an unnecessary native process forking on macOS/Linux platforms. This should be avoided by default. Making it optional opt-in style would fix the issue.

Comments

Changeset: d49851a8 Author: Naoto Sato <naoto@openjdk.org> Date: 2023-01-09 18:23:42 +0000 URL: https://git.openjdk.org/jdk20/commit/d49851a8b8e80b6ffa53c2bb4f5b2897735d471f

09-01-2023

A pull request was submitted for review. URL: https://git.openjdk.org/jdk20/pull/88 Date: 2023-01-06 17:57:47 +0000

06-01-2023