Liberica JDK 16.0.1+9 Release Notes

The full version string for this update release is 16.0.1+9 (OpenJDK 16+7 baseline). The version number is 16.

Liberica JDK 16.0.1+9

Liberica is a certified, Java SE 16-compliant distribution of OpenJDK 16 which works on server (Linux x86_64, Linux ARM64, Solaris SPARC, Solaris x64, Windows 64), desktop (Windows 64, Windows 32, Mac, Linux x86_64), and embedded devices (Linux ARM64, Linux ARMv7, including Raspberry Pi 2, 3, 4 (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 16.
  • Linux ARMv7 distribution contains Device IO API compiled for Raspberry Pi.

Please refer to the Oracle JDK 16 release notes for further information on JDK 16 features. This document further outlines the peculiarities of Liberica distribution as compared to Oracle JDK 16 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 6.x, 7.x (x86, x86_64, ARMv7, ARMv8)
  • Alpine Linux 3.7+
  • SUSE Linux Enterprise 12, 15 and tumbleweed (x86_64, ARMv8)
  • Apple macOS 10.11+
  • Microsoft Windows 2019, Windows 2016, Windows 2012 R2, Windows 10, Windows 8, Windows 7 (64 and 32 bit)

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 16 distribution

Liberica JDK 16 are distributed as .rpm, .zip, .deb and .tar.gz packages. Please select the one which is most appropriate for your purposes.

Liberica 16 introduced all new features supported by OpenJDK 16.

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 16 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 16 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 16 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 and 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
sudo ln -s

Issues fixed

Issue Description
7146776 deadlock between URLStreamHandler.getHostAddress and file.Handler.openconnection
8198540 Dynalink leaks memory when generating type converters
8204568 Relative CSS-Attributes don’t work all time
8226810 Failed to launch JVM because of NullPointerException occured on System.props
8228363 with side=TOP does not work the first time in the presence of CSS
8239589 JavaFX UI will not repaint after reconnecting via Remote Desktop
8241372 Several test failures due to Connection reset
8244473 Contextualize registration for JNDI
8244543 Enhanced handling of abstract classes
8248126 JavaFX ignores HiDPI scaling settings on some linux platforms
8249737 java.lang.RuntimeException: Too many touch points reported
8249867 xml declaration is not followed by a newline
8249906 Enhance opening JARs
8250568 Less ambiguous processing
8251944 Add Shenandoah test config to compiler/gcbarriers/
8252099 JavaFX does not render Myanmar script correctly
8252883 AccessDeniedException caused by delayed file deletion on Windows
8252971 WindowsFileAttributes does not know about Unix domain sockets
8253368 TLS connection always receives close_notify exception
8253409 Double-rounding possibility in float fma
8253702 BigSur version number reported as 10.16, should be 11.nn
8253799 Make lists of normal filenames
8253910 UseCompressedClassPointers depends on UseCompressedOops in vmError.cpp
8254836 Cherry pick GTK WebKit 2.30.3 changes
8256215 Shenandoah: re-organize saving/restoring machine state in assembler code
8256283 IndexOutOfBoundsException when sorting a TreeTableView
8256421 Add 2 HARICA roots to cacerts truststore
8257001 Improve HTTP client support
8257513 C2: assert((constant_addr - _masm.code()->consts()->start()) == con.offset())
8257746 Regression introduced with JDK-8250984 - memory might be null in some machines
8258077 Using -Xcheck:jni can lead to a double-free after JDK-8193234
8258243 C2: assert failed (“Bad derived pointer”) with -XX:+VerifyRegisterAllocator
8258247 Couple of issues in fix for JDK-8249906
8258457 testlibrary_tests/ctw/ fails with InvalidPathException on windows
8258471 “search codecache” clhsdb command does not work
8258490 Shenandoah: Full GC does not need to remark threads and drain SATB buffers
8258534 Epsilon: clean up unused includes
8258909 update jdk16u jcheck conf
8258946 Fix optimization-unstable code involving signed integer overflow
8259048 (tz) Upgrade time-zone data to tzdata2020f
8259049 Uninitialized variable after JDK-8257513
8259231 Epsilon: improve performance under contention during virtual space expansion
8259339 AllocateUninitializedArray C2 intrinsic fails with void.class input
8259392 Zero error reporting is broken after JDK-8255711
8259428 AlgorithmId.getEncodedParams() should return copy
8259446 runtime/jni/checked/ fails with stderr not empty
8259451 Zero: skip serviceability/sa tests, set vm.hasSA to false
8259576 Misplaced curly brace in Matcher::find_shared_post_visit
8259580 Shenandoah: uninitialized label in VerifyThreadGCState
8259619 C1: 3-arg StubAssembler::call_RT stack-use condition is incorrect
8259620 Bump release strings for JDK 16.0.1
8259628 jdk/net/ExtendedSocketOption/ fails intermittently
8259633 compiler/graalunit/ fails with NPE after JDK-8244543
8259635 Update to 610.2 version of WebKit
8259679 GitHub actions should use MSVC 14.28
8259680 Need API to query states of CAPS LOCK and NUM LOCK keys
8259706 C2 compilation fails with assert(vtable_index == Method::invalid_vtable_index) failed: correct sentinel value
8259773 Incorrect encoding of AVX-512 kmovq instruction
8259777 Incorrect predication condition generated by ADLC
8259849 Shenandoah: Rename store-val to IU-barrier
8259949 x86 32-bit build fails when -fcf-protection is passed in the compiler flags
8259954 gc/shenandoah/mxbeans tests fail with -Xcomp
8260009 InstanceKlass::has_as_permitted_subclass() fails if subclass was redefined
8260010 UTF8ZipCoder not thread-safe since JDK-8243469
8260029 aarch64: fix typo in verify_oop_array
8260048 Shenandoah: ShenandoahMarkingContext asserts are unnecessary
8260163 IrresponsiveScriptTest.testInfiniteLoopInScript unit test fails on Windows
8260165 CSSFilterTest.testCSSFilterRendering system test fails
8260257 [Linux] WebView no longer reacts to some mouse events
8260338 Some fields in HaltNode is not cloned
8260349 Cannot programmatically retrieve Metaspace max set via JAVA_TOOL_OPTIONS
8260356 (tz) Upgrade time-zone data to tzdata2021a
8260380 Upgrade to LittleCMS 2.12
8260570 Updating RE Configs for BUILD REQUEST 16.0.1+2
8260592 jpackage tests fail when Desktop is not supported
8260864 ProblemList two security/krb5 tests on Linux
8260933 runtime/cds/serviceability/ fails without CompactStrings
8260934 java/lang/StringBuilder/ fails without Compact Strings
8261022 Fix incorrect result of Math.abs() with char type
8261170 Upgrade to freetype 2.10.4
8261183 Follow on to Make lists of normal filenames
8261209 isStandalone property: remove dependency on pretty-print
8261231 Windows IME was disabled after DnD operation
8261251 Shenandoah: Use object size for full GC humongous compaction
8261261 The version extra fields needs to be overridable in jib-profiles.js
8261310 PPC64 Zero build fails with ‘VMError::controlled_crash(int)::FunctionDescriptor functionDescriptor’ has incomplete type and cannot be defined
8261334 NMT: tuning statistic shows incorrect hash distribution
8261397 Try Catch Method Failing to Work When Dividing An Integer By 0
8261413 Shenandoah: Disable class-unloading in I-U mode
8261460 Incorrect CSS applied to ContextMenu on DialogPane
8261483 jdk/dynalink/ failed with “AssertionError: Should have GCd a method handle by now”
8261522 [PPC64] AES intrinsics write beyond the destination array
8261585 Restore HandleArea used in Deoptimization::uncommon_trap
8261752 Multiple GC test are missing memory requirements
8261753 Test java/lang/System/ still failing on BigSur patch versions after JDK-8253702
8261758 [TESTBUG] gc/g1/ fails if ergonomics detect too small InitialHeapSize
8261779 JCK test api/javax_crypto/EncryptedPrivateKeyInfo/Ctor4.html is failing with assertion error when assertions enabled
8261860 Crash caused by lambda proxy class loaded in Shutdown hook
8261912 Code IfNode::fold_compares_helper more defensively
8261927 WebKit build fails with Visual Studio 2017
8262018 Wrong format in SAP copyright header of OsVersionTest
8263968 CDS: java/lang/ModuleLayer.EMPTY_LAYER should be singleton
8264536 Building OpenJFX on Apple AARCH64 not possible
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