Liberica JDK 19.0.1+11 Release Notes


The full version string for this update release is 19.0.1+11. The version number is 19.

Liberica JDK 19.0.1+11

Liberica is a certified, Java SE 19-compliant distribution of OpenJDK 19.0.1 which works on server (Linux x86_64, Linux ARM64, Windows 64), desktop (Windows 64, Windows 32, Mac, Linux x86_64), and embedded devices (Linux ARM64, Linux ARMv7, including Raspberry Pi 2 & 3 (ARMv6 hardfloat)). It has the following notable additions:

  • Linux x86_64 version contains experimental support for ZGC.
  • Linux x86_64, ARMv8 and ARMv7 distributions include a choice of Client VM, Server VM and Minimal VM.
  • Alpine Linux x86_64 version is build with musl support.
  • Windows x86_64, Windows x86, Windows ARMv8, Mac, Linux x86_64, Linux x86 and Linux ARMv7 distributions contain OpenJFX 19.
  • Linux ARMv7 distribution contains Device IO API compiled for Raspberry Pi.

Please refer to the Oracle JDK 19.0.1 release notes for further information on JDK 19 features. This document further outlines the peculiarities of Liberica distribution as compared to Oracle JDK 19 distribution.

Supported Server and Desktop configurations

Liberica is supported on the following OSes:

  • Ubuntu Linux 16.04, 18.04, 20.04 (x86, x86_64, ARMv7, ARMv8)
  • Debian Linux 8, 9, 10 (x86, x86_64, ARMv7, ARMv8)
  • Red Hat, Oracle Linux and CentOS 8x, 6.x, 7.x (x86, x86_64, ARMv7, ARMv8)
  • Alpine Linux 3.7+ (x86_64, ARMv8)
  • SUSE Linux Enterprise 12, 15 and tumbleweed (x86_64, ARMv8)
  • Apple macOS 10.11+ (x86_64, ARMv8)
  • Microsoft Windows 2019, Windows 2016, Windows 2012 R2, Windows 10, Windows 8, Windows 7 (x86, x86_64, ARMv8)

It is also known to work on other Linux distributions and Windows versions.

Note: The minimum supported Linux kernel version is 2.6.18 and GLIBC version 2.6. LibericaFX works on all supported Ubuntu versions, Red Hat Linux family starting from 7.x and SUSE versions with GTK3 backend.

Supported Embedded configurations

Liberica is tested and certified on Raspberry Pi 2, 3 and 4 running the following OSes:

  • Raspbian OS (armhf)
  • OpenSUSE (armv8)

It is also known to work with Debian (armhf) and Ubuntu (armhf).

Liberica JDK 19.0.1 distribution

Liberica JDK 19.0.1 are distributed as .rpm, .zip, .deb and .tar.gz packages. Please select the one which is most appropriate for your purposes.

Liberica JDK 19.0.1 introduced all new features supported by OpenJDK 19.

With the introduction of the Jigsaw feature in JDK 9 and Minimal VM it is now possible to create a Runtime that is sufficient to run your application and trim down the size of the Runtime. To generate a Runtime with just the Minimal VM, add --vm=minimal to jlink options.

Liberica JDK continues to provide support for AOT and Graal JIT. Since in OpenJDK 19 builds these features are deemed experimental and deprecated, it is recommended to compile native executables with Liberica Native Image Kit to avoid errors.

By default, the Liberica uses Server VM. Server VM and Client VM can be enabled with -server and -client command line options, respectively. In case the deployment requires to minimize the footprint, it may be beneficial to use Minimal VM, which emphasises on a minimal footprint. It has C1 JIT compiler only, Serial GC and no serviceability features.

LibericaFX for the Raspberry Pi

Liberica JDK 19 come with a bundled LibericaFX implementation, which is based on OpenJFX. The following tables lists Java FX modules status of Liberica distribution

  • Java FX Graphics - works.
  • Java FX Controls - works.
  • Java FX Media - does not work.
  • Java FX Webkit - does not work.

The following pipelines are known to work: EGL, SW (direct framebuffer) and GTK. By default, Liberica tries to use the accelerated EGL pipeline, which requires the presence of EGL libraries. If they are not found, the implementation falls back to software rendering.

Use the following command line options to specify the rendering pipeline:

  • -Dprism.order=sw forces the use of software rendering pipeline. *
  • -Dprism.order=es2 forces the use of EGL pipeline and hardware acceleration. *
  • -Djavafx.platform=gtk if you would like to launch a LibericaFX application using Liberica from X11.

* Not supported on Raspberry Pi 4.

Please refer to the following wiki for more information.

Device IO API for the Raspberry Pi

Liberica JDK 19 comes with a bundled OpenJDK Device I/O (DIO) API implementation module. DIO provides a Java API for accessing Raspberry PI GPIO pins and for communicating with peripheral devices:

  • General Purpose Input/Output (GPIO).
  • Inter-Integrated Circuit Bus (I2C), Serial Peripheral Interface (SPI).
  • Universal Asynchronous Receiver/Transmitter (UART).

Please refer to the following wiki for more information.

Security Baselines

BellSoft Liberica follows the security baselines for Oracle Java SE. Please refer to the Oracle documentation for a list of issues fixed in a given release.

Known Issues

LibericaFX and EGL on Raspbian

As of 2017, the default location of Broadcom libEGL.so and libGLESv2.so has changed in Raspbian OS. If you'd like to leverage hardware EGL acceleration available from Broadcom video drivers in LibericaFX while running a recent Raspbian OS, run the following command:

cd /opt/vc/lib
sudo ln -s libbrcmEGL.so libEGL.so
sudo ln -s libbrcmGLESv2.so libGLESv2.so

Issues fixed

Issue Description
8289366 Improve HTTP/2 client usage
8288508 Enhance ECDSA usage
8287446 Enhance icon presentations
8286918 Better HttpServer service
8286910 Improve JNDI lookups
8286526 Improve NTLM support
8286519 Better memory handling
8286511 Improve macro allocation
8286077 Wider MultiByte conversions
8285662 Better permission resolution
8282252 Improve BigInteger/Decimal validation
8292051 jdk/internal/misc/TerminatingThreadLocal/TestTerminatingThreadLocal.java failed "AssertionError: Expected terminated values: [666] but got: []"
8291897 TerminatingThreadLocal(s) not registered from virtual thread(s)
8292240 CarrierThread.blocking not reset when spare not activated
8291640 java/beans/XMLDecoder/8028054/Task.java should use the 3-arg Class.forName
8292579 (tz) Update Timezone Data to 2022c
8292654 G1 remembered set memory footprint regression after JDK-8286115
8293180 JQuery UI license file not updated
8284977 MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist
8227651 Tests fail with SSLProtocolException: Input record too big
8212096 javax/net/ssl/ServerName/SSLEngineExplorerMatchedSNI.java failed intermittently due to SSLException: Tag mismatch
8292487 Back out the fix forJDK-8281962 from jdk19u
8287917 System.loadLibrary does not work on Big Sur if JDK is built with macOS SDK 10.15 and earlier
8028265 Add legacy tz tests to OpenJDK
8290334 Update FreeType to 2.12.1
8290000 Bump macOS GitHub actions to macOS 11
8288499 Restore cancel-in-progress in GHA
8287906 Rewrite of GitHub Actions (GHA) sanity tests
8289853 Update HarfBuzz to 4.4.1
8287672 jtreg test com/sun/jndi/ldap/LdapPoolTimeoutTest.java fails intermittently in nightly run
8288653 Bump version numbers for 19.0.1