Release notes for Red Hat build of OpenJDK 11.0.14

The Red Hat build of OpenJDK 11.0.14.1 release resolves an issue that was identified when using the Java HTTP client, java.net.HTTPClient, to connect to the https://google.com URL. This issue persisted on the Red Hat build of OpenJDK build for Microsoft Windows and on the Red Hat build of OpenJDK build for RHEL.

The initial Red Hat build of OpenJDK 11.0.14 release contained a regression that was introduced by improvements to the HTTP client. This regression caused both the :authority and the Host header fields to be sent in HTTP/2 requests, which are rejected by some HTTP servers, such as Google’s server. When you attempted to establish this connection, you would receive an exception message. This exception message would indicate that the Java HTTP client could not successfully communicate by using the HTTP/2 protocol.

java.util.concurrent.ExecutionException: java.io.IOException: Received RST_STREAM: Protocol error

The Red Hat build of OpenJDK 11.0.14.1 release resolves the issue by reverting to the original behavior of only setting the :authority header field to be sent in an HTTP/2 request.

For more information about this issue and how it was resolved, see JDK-8218546 and see the advisories related to the Red Hat build of OpenJDK 11.0.14.1 release.

The following advisories have been issued to bugfixes and CVE fixes included in this release:

Review the following release notes to understand new features and feature enhancements that have been included with the Red Hat build of OpenJDK 11.0.14 release:

Archive file system provider

For Red Hat build of OpenJDK 11.0.14, the archive file system provider rejects existing archive files with file name elements that include a dot (.) or two dots (..). If you attempt to use existing archive files that include these named elements as system files, and you invoke the java.nio.file.FileSystems.newFileSystem(…​) method, the method throw a ZipException error message on your command-line interface.

For more information about the change to the archive file system provider, see JDK-8271517.

IANA Time Zone Database

The Internet Assigned Numbers Authority (IANA) updated its Time Zone Database to version 2021c. Red Hat OpenJDK date and time libraries depends on IANA’s Time Zone Database for determining local time for various regions around the world.

For more information about IANA’s Time Zone Database, see Time Zone Database on the IANA website.

For more information about IANA’s 2021c Time Zone Database release, see JDK-8274857.

OpenJDK’s identification of Microsoft Windows versions

Before the Red Hat build of OpenJDK 11, the os.name system property that is retrieved from System.getProperty() and the HotSpot error logs would report Windows 10.0 on Microsoft Windows 11 and Windows Server 2019 on Microsoft Windows Server 2022. Red Hat build of OpenJDK now identifies the correct version on these systems.

New option for the GC.heap_dump diagnostic command

Red Hat build of OpenJDK 11.0.14 adds the gz integer option to the GC.heap_dump diagnostic command of the jcmd utility.

You can use this option to enable gzip compression and to set a compression level when creating a heap dump. Compression level values range from 1 through 9, with the value of 1 as the fastest setting and the value of 9 as the slowest setting.

For more information about the gz integer option, see JDK-8250554.

Microsoft Windows version

Red Hat build of OpenJDK that runs on either Microsoft Windows 11 or Microsoft Windows Server 2022 now displays the correct Microsoft Windows version in the os.name value of the System.getProperty() system property and any HotSpot error logs. Before the Red Hat build of OpenJDK 11.0.14 release, this behavior was not possible if you updated your Microsoft Windows operating system or Microsoft Windows Server to a later version.

System properties for disabling TLS extensions

You can use two new system properties to disable Transport Layer Security (TLS) extensions for the TLS protocol. These system properties are detailed as follows:

A disabled TLS extension does not form part of a TLS handshake process. You must not disable mandatory TLS extensions, because these TLS extensions are essential for establishing a TLS handshake.

Both system properties ignore duplicated, misspelled, unknown, and unsupported TLS extension names. Extension names must conform to the Internet Assigned Numbers Authority (IANA) specification.

For more information about these new system properties, see JDK-8260310.

For more information about the TLS extensions that comply with the IANA specification, see Transport Layer Security (TLS) Extensions on the IANA website.

SunPKCS11 provider configuration attributes

The SunPKCS11 provider includes new configuration attributes that enhance the usage of native resources, such as key objects. The SunPKCS11 provider must use native resources for it to work with native PKCS11 libraries.

For more information about the new SunPKCS11 provider configuration attributes, see JDK-8272907.

Review the following release notes to understand pre-existing features that have been either deprecated or removed in the Red Hat build of OpenJDK 11.0.14 release:

Google GlobalSign root certificate

Red Hat build of OpenJDK 11.0.14 removes the following root certificate from the cacerts keystore:

For more information about this removed Google GlobalSign root certificate, see JDK-8272535.