Red Hat SummitRelease notes for Eclipse Temurin 17.0.6
Abstract
Preface
Open Java Development Kit (OpenJDK) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). Eclipse Temurin is available in three LTS versions: OpenJDK 8u, OpenJDK 11u, and OpenJDK 17u.
Binaries for Eclipse Temurin are available for macOS, Microsoft Windows, and on multiple Linux x86 Operating Systems including Red Hat Enterprise Linux and Ubuntu.
Providing feedback on Red Hat build of OpenJDK documentation
To report an error or to improve our documentation, log in to your Red Hat Jira account and submit an issue. If you do not have a Red Hat Jira account, then you will be prompted to create an account.
Procedure
- Click the following link to create a ticket.
- Enter a brief description of the issue in the Summary.
- Provide a detailed description of the issue or enhancement in the Description. Include a URL to where the issue occurs in the documentation.
- Clicking Submit creates and routes the issue to the appropriate documentation team.
Making open source more inclusive
Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upcoming releases. For more details, see our CTO Chris Wright’s message.
Chapter 1. Support policy for Eclipse Temurin
Red Hat will support select major versions of Eclipse Temurin in its products. For consistency, these versions remain similar to Oracle JDK versions that Oracle designates as long-term support (LTS).
A major version of Eclipse Temurin will be supported for a minimum of six years from the time that version is first introduced. For more information, see the Eclipse Temurin Life Cycle and Support Policy.
RHEL 6 reached the end of life in November 2020. Because of this, Eclipse Temurin does not support RHEL 6 as a supported configuration.
Chapter 2. Eclipse Temurin features
Eclipse Temurin does not contain structural changes from the upstream distribution of OpenJDK.
For the list of changes and security fixes included in the latest OpenJDK 17 release of Eclipse Temurin, see OpenJDK 17.0.6 Released.
New features and enhancements
Review the following release notes to understand new features and feature enhancements included with the Eclipse Temurin 17.0.6 release:
Enhanced BMP bounds
By default, OpenJDK 17.0.6 disables loading a linked International Color Consortium (ICC) profile in a BMP image. You can enable this functionality by setting the new sun.imageio.bmp.enabledLinkedProfiles property to true. This property replaces the old sun.imageio.plugins.bmp.disableLinkedProfiles property
See JDK-8295687 (JDK Bug System).
Improved banking of sounds
Previously, the SoundbankReader implementation, com.sun.media.sound.JARSoundbankReader, downloaded a JAR soundbank from a URL. For OpenJDK 17.0.6, this behavior is now disabled by default. To re-enable the behavior, set the new system property jdk.sound.jarsoundbank to true.
See JDK-8293742 (JDK Bug System).
Enhanced Datagram Transport Layer Security (DTLS) performance
OpenJDK now exchanges DTLS cookies for all new and resumed handshake communications.
To re-enable the previous release behavior, set the new system property jdk.tls.enableDtlsResumeCookie to false.
See JDK-8287411 (JDK Bug System).
Added note for LoginModule implementation
The OpenJDK 9 release changed the Set implementation, which holds principals and credentials, so that the implementation can reject null values. Any attempts to call add(null), contains(null), or remove(null) would throw a NullPointerException message.
The OpenJDK 9 release did not update the logout() method in the LoginModule implementation to check for null values. These values could occur because of a failed login attempt, which can cause a logout() call to throw a NullPointerException message.
The OpenJDK 17.0.6 release updates the LoginModule implementations to check for null values. Additionally, the release adds an implementation note to the specification that states the change also applies to third-party modules. The note advises developers of third-party modules to verify that a logout() method does not throw a NullPointerException message.
- See JDK-8015081 (JDK Bug System).
- See JDK-8282730 (JDK Bug System).
Revised on 2024-05-03 15:35:53 UTC
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