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Update release notes to document the major changes between OpenJDK 11 & 17.

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@ -3,152 +3,526 @@ Key:
JDK-X - https://bugs.openjdk.java.net/browse/JDK-X
CVE-XXXX-YYYY: https://cve.mitre.org/cgi-bin/cvename.cgi?name=XXXX-YYYY
New in release OpenJDK 15.0.2 (2021-01-19):
New in release OpenJDK 17.0.0 (2021-09-14):
===========================================
Live versions of these release notes can be found at:
* https://builds.shipilev.net/backports-monitor/release-notes-15.0.2.txt
The full list of changes in the interim releases from 11u to 17u can be found at:
* https://builds.shipilev.net/backports-monitor/release-notes-12.txt
* https://builds.shipilev.net/backports-monitor/release-notes-13.txt
* https://builds.shipilev.net/backports-monitor/release-notes-14.txt
* https://builds.shipilev.net/backports-monitor/release-notes-15.txt
* https://builds.shipilev.net/backports-monitor/release-notes-16.txt
* https://builds.shipilev.net/backports-monitor/release-notes-17.txt
* Security fixes
- JDK-8247619: Improve Direct Buffering of Characters
* Other changes
- JDK-8197981: Missing return statement in __sync_val_compare_and_swap_8
- JDK-8239105: Add exception for expiring Digicert root certificates to VerifyCACerts test
- JDK-8247741: Test test/hotspot/jtreg/runtime/7162488/TestUnrecognizedVmOption.java fails when -XX:+IgnoreUnrecognizedVMOptions is set
- JDK-8248411: [aarch64] Insufficient error handling when CodeBuffer is exhausted
- JDK-8248596: [TESTBUG] compiler/loopopts/PartialPeelingUnswitch.java times out with Graal enabled
- JDK-8248667: Need support for building native libraries located in the test/lib directory
- JDK-8249176: Update GlobalSignR6CA test certificates
- JDK-8249192: MonitorInfo stores raw oops across safepoints
- JDK-8249217: Unexpected StackOverflowError in "process reaper" thread still happens
- JDK-8249781: AArch64: AOT compiled code crashes if C2 allocates r27
- JDK-8250257: Bump release strings for JDK 15.0.2
- JDK-8251397: NPE on ClassValue.ClassValueMap.cacheArray
- JDK-8251859: sun/security/validator/PKIXValAndRevCheckTests.java fails
- JDK-8253191: C2: Masked byte comparisons with large masks produce wrong result on x86
- JDK-8253375: OSX build fails with Xcode 12.0 (12A7209)
- JDK-8253566: clazz.isAssignableFrom will return false for interface implementors
- JDK-8253756: C2 CompilerThread0 crash in Node::add_req(Node*)
- JDK-8253791: Issue with useAppleColor check in CSystemColors.m
- JDK-8253960: Memory leak in Java_java_lang_ClassLoader_defineClass0()
- JDK-8254081: java/security/cert/PolicyNode/GetPolicyQualifiers.java fails due to an expired certificate
- JDK-8254166: Zero: return-type warning in zeroInterpreter_zero.cpp
- JDK-8254177: (tz) Upgrade time-zone data to tzdata2020b
- JDK-8254319: Shenandoah: Interpreter native-LRB needs to activate during HAS_FORWARDED
- JDK-8254320: Shenandoah: C2 native LRB should activate for non-cset objects
- JDK-8254790: SIGSEGV in string_indexof_char and stringL_indexof_char intrinsics
- JDK-8254854: [cgroups v1] Metric limits not properly detected on some join controller combinations
- JDK-8254982: (tz) Upgrade time-zone data to tzdata2020c
- JDK-8255065: Zero: accessor_entry misses the IRIW case
- JDK-8255067: Restore Copyright line in file modified by 8253191
- JDK-8255226: (tz) Upgrade time-zone data to tzdata2020d
- JDK-8255599: Change jdk 15.0.2 milestone to fcs for build b04
- JDK-8255603: Memory/Performance regression after JDK-8210985
- JDK-8256051: nmethod_entry_barrier stub miscalculates xmm spill size on x86_32
- JDK-8256427: Test com/sun/jndi/dns/ConfigTests/PortUnreachable.java does not work on AIX
- JDK-8256618: Zero: Linux x86_32 build still fails
- JDK-8257181: s390x builds are very noisy with gc-sections messages
- JDK-8257641: Shenandoah: Query is_at_shenandoah_safepoint() from control thread should return false
- JDK-8257701: Shenandoah: objArrayKlass metadata is not marked with chunked arrays
Major changes are listed below. Some changes may have been backported
to earlier releases following their first appearance in OpenJDK 12
through to 17.
Notes on individual issues:
NEW FEATURES
============
Language Features
=================
Switch Expressions
==================
https://openjdk.java.net/jeps/325
https://openjdk.java.net/jeps/354
https://openjdk.java.net/jeps/361
Extend the `switch` statement so that it can be used as either a
statement or an expression, and that both forms can use either a
"traditional" or "simplified" scoping and control flow behavior. Both
forms can use either traditional `case ... :` labels (with fall
through) or new `case ... ->` labels (with no fall through), with a
further new statement for yielding a value from a `switch`
expression. These changes will simplify everyday coding, and also
prepare the way for the use of pattern matching in `switch`.
This was a preview feature (http://openjdk.java.net/jeps/12) in
OpenJDK 12 & 13 and became final in OpenJDK 14.
Text Blocks
===========
https://openjdk.java.net/jeps/355
https://openjdk.java.net/jeps/368
https://openjdk.java.net/jeps/378
Add text blocks to the Java language. A text block is a multi-line
string literal that avoids the need for most escape sequences,
automatically formats the string in a predictable way, and gives the
developer control over format when desired.
This was a preview feature (http://openjdk.java.net/jeps/12) in
OpenJDK 13 & 14 and became final in OpenJDK 15.
Pattern Matching for instanceof
===============================
https://openjdk.java.net/jeps/305
https://openjdk.java.net/jeps/375
https://openjdk.java.net/jeps/394
http://cr.openjdk.java.net/~briangoetz/amber/pattern-match.html
Enhance the Java programming language with pattern matching for the
`instanceof` operator. Pattern matching allows common logic in a
program, namely the conditional extraction of components from objects,
to be expressed more concisely and safely.
This was a preview feature (http://openjdk.java.net/jeps/12) in
OpenJDK 14 & 15 and became final in OpenJDK 16.
Records
=======
https://openjdk.java.net/jeps/359
https://openjdk.java.net/jeps/384
https://openjdk.java.net/jeps/395
Enhance the Java programming language with records. Records provide a
compact syntax for declaring classes which are transparent holders for
shallowly immutable data.
This was a preview feature (http://openjdk.java.net/jeps/12) in
OpenJDK 14 & 15 and became final in OpenJDK 16.
Sealed Classes
==============
https://openjdk.java.net/jeps/360
https://openjdk.java.net/jeps/397
https://openjdk.java.net/jeps/409
https://cr.openjdk.java.net/~briangoetz/amber/datum.html
Enhance the Java programming language with sealed classes and
interfaces. Sealed classes and interfaces restrict which other classes
or interfaces may extend or implement them.
This was a preview feature (http://openjdk.java.net/jeps/12) in
OpenJDK 15 & 16 and became final in OpenJDK 17.
Restore Always-Strict Floating-Point Semantics
==============================================
https://openjdk.java.net/jeps/306
Make floating-point operations consistently strict, rather than have
both strict floating-point semantics (`strictfp`) and subtly different
default floating-point semantics. This will restore the original
floating-point semantics to the language and VM, matching the
semantics before the introduction of strict and default floating-point
modes in Java SE 1.2.
Pattern Matching for switch
===========================
https://openjdk.java.net/jeps/406
core-libs/java.time:
Enhance the Java programming language with pattern matching for
`switch` expressions and statements, along with extensions to the
language of patterns. Extending pattern matching to `switch` allows an
expression to be tested against a number of patterns, each with a
specific action, so that complex data-oriented queries can be
expressed concisely and safely.
JDK-8254177: US/Pacific-New Zone name removed as part of tzdata2020b
====================================================================
Following JDK's update to tzdata2020b, the long-obsolete files
pacificnew and systemv have been removed. As a result, the
"US/Pacific-New" zone name declared in the pacificnew data file is no
longer available for use.
This is a preview feature (http://openjdk.java.net/jeps/12) in OpenJDK
17.
Information regarding the update can be viewed at
https://mm.icann.org/pipermail/tz-announce/2020-October/000059.html
Library Features
================
New in release OpenJDK 15.0.1 (2020-10-20):
===========================================
Live versions of these release notes can be found at:
* https://builds.shipilev.net/backports-monitor/release-notes-15.0.1.txt
JVM Constants API
=================
https://openjdk.java.net/jeps/334
* Security fixes
- JDK-8233624: Enhance JNI linkage
- JDK-8236196: Improve string pooling
- JDK-8236862, CVE-2020-14779: Enhance support of Proxy class
- JDK-8237990, CVE-2020-14781: Enhanced LDAP contexts
- JDK-8237995, CVE-2020-14782: Enhance certificate processing
- JDK-8240124: Better VM Interning
- JDK-8241114, CVE-2020-14792: Better range handling
- JDK-8242680, CVE-2020-14796: Improved URI Support
- JDK-8242685, CVE-2020-14797: Better Path Validation
- JDK-8242695, CVE-2020-14798: Enhanced buffer support
- JDK-8243302: Advanced class supports
- JDK-8244136, CVE-2020-14803: Improved Buffer supports
- JDK-8244479: Further constrain certificates
- JDK-8244955: Additional Fix for JDK-8240124
- JDK-8245407: Enhance zoning of times
- JDK-8245412: Better class definitions
- JDK-8245417: Improve certificate chain handling
- JDK-8248574: Improve jpeg processing
- JDK-8249927: Specify limits of jdk.serialProxyInterfaceLimit
- JDK-8253019: Enhanced JPEG decoding
* Other changes
- JDK-8232114: JVM crashed at imjpapi.dll in native code
- JDK-8243470: [macos] bring back O2 opt level for unsafe.cpp
- JDK-8247251: Assert '(_pcs_length == 0 || last_pc()->pc_offset() < pc_offset) failed: must specify a new, larger pc offset' failure
- JDK-8248495: [macos] zerovm is broken due to libffi headers location
- JDK-8248745: Add jarsigner and keytool tests for restricted algorithms
- JDK-8249165: Remove unneeded nops introduced by 8234160 changes
- JDK-8249183: JVM crash in "AwtFrame::WmSize" method
- JDK-8249266: Bump release strings for JDK 15.0.1
- JDK-8249266: Change jdk 15.0.1 milestone to fcs for build b02
- JDK-8250612: jvmciCompilerToVM.cpp declares jio_printf with "void" return type, should be "int"
- JDK-8250665: Wrong translation for the month name of May in ar_JO,LB,SY
- JDK-8250861: Crash in MinINode::Ideal(PhaseGVN*, bool)
- JDK-8250876: Fix issues with cross-compile on macos
- JDK-8250928: JFR: Improve hash algorithm for stack traces
- JDK-8251359: Shenandoah: filter null oops before calling enqueue/SATB barrier
- JDK-8251458: Parse::do_lookupswitch fails with "assert(_cnt >= 0) failed"
- JDK-8251859: sun/security/validator/PKIXValAndRevCheckTests.java fails
- JDK-8251910: Shenandoah: Handshake threads between weak-roots and reset phases
- JDK-8252120: compiler/oracle/TestCompileCommand.java misspells "occured"
- JDK-8252292: 8240795 may cause anti-dependence to be missed
- JDK-8252359: HotSpot Not Identifying it is Running in a Container
- JDK-8252367: Undo JDK-8245000: Windows GDI functions don't support large pages
- JDK-8252368: Undo JDK-8245002: Windows GDI functions don't support NUMA interleaving
- JDK-8252470: java/awt/dnd/DisposeFrameOnDragCrash/DisposeFrameOnDragTest.java fails on Windows
- JDK-8252660: Shenandoah: support manageable SoftMaxHeapSize option
- JDK-8252754: Hash code calculation of JfrStackTrace is inconsistent
- JDK-8253222: Shenandoah: unused AlwaysTrueClosure after JDK-8246591
- JDK-8253224: Shenandoah: ShenandoahStrDedupQueue destructor calls virtual num_queues()
- JDK-8253226: Shenandoah: remove unimplemented ShenandoahStrDedupQueue::verify
- JDK-8253284: Zero OrderAccess barrier mappings are incorrect
- JDK-8253714: [cgroups v2] Soft memory limit incorrectly using memory.high
- JDK-8253727: [cgroups v2] Memory and swap limits reported incorrectly
- JDK-8253778: ShenandoahSafepoint::is_at_shenandoah_safepoint should not access VMThread state from other threads
- JDK-8254144: Non-x86 Zero builds fail with return-type warning in os_linux_zero.cpp
- JDK-8254560: Shenandoah: Concurrent Strong Roots logging is incorrect
Introduce an API to model nominal descriptions of key class-file and
run-time artifacts, in particular constants that are loadable from the
constant pool.
Notes on individual issues:
Reimplement the Legacy Socket API
=================================
https://openjdk.java.net/jeps/353
Replace the underlying implementation used by the `java.net.Socket`
and `java.net.ServerSocket` APIs with a simpler and more modern
implementation that is easy to maintain and debug. The new
implementation will be easy to adapt to work with user-mode threads,
a.k.a. fibers, currently being explored in Project Loom
(https://openjdk.java.net/projects/loom).
JFR Event Streaming
===================
https://openjdk.java.net/jeps/349
Expose JDK Flight Recorder data for continuous monitoring.
Non-Volatile Mapped Byte Buffers
================================
https://openjdk.java.net/jeps/352
Add new JDK-specific file mapping modes so that the `FileChannel` API
can be used to create `MappedByteBuffer` instances that refer to
non-volatile memory.
Helpful NullPointerExceptions
=============================
https://openjdk.java.net/jeps/358
Improve the usability of `NullPointerException`s generated by the JVM
by describing precisely which variable was `null`.
Foreign-Memory Access API
=========================
https://openjdk.java.net/jeps/370
https://openjdk.java.net/jeps/383
https://openjdk.java.net/jeps/393
Introduce an API to allow Java programs to safely and efficiently
access foreign memory outside of the Java heap.
This was a incubation feature (https://openjdk.java.net/jeps/11) in
OpenJDK 14, 15 & 16, now superseded by the Foreign Function & Memory
API in OpenJDK 17 (see below).
Edwards-Curve Digital Signature Algorithm (EdDSA)
=================================================
https://openjdk.java.net/jeps/339
Implement cryptographic signatures using the Edwards-Curve Digital
Signature Algorithm (EdDSA) as described by RFC 8032
(https://tools.ietf.org/html/rfc8032).
Hidden Classes
==============
https://openjdk.java.net/jeps/371
Introduce hidden classes, which are classes that cannot be used
directly by the bytecode of other classes. Hidden classes are intended
for use by frameworks that generate classes at run time and use them
indirectly, via reflection. A hidden class may be defined as a member
of an access control nest (https://openjdk.java.net/jeps/181), and may
be unloaded independently of other classes.
Reimplement the Legacy DatagramSocket API
=========================================
https://openjdk.java.net/jeps/373
Replace the underlying implementations of the
`java.net.DatagramSocket` and `java.net.MulticastSocket` APIs with
simpler and more modern implementations that are easy to maintain and
debug. The new implementations will be easy to adapt to work with
virtual threads, currently being explored in Project Loom
(https://openjdk.java.net/projects/loom). This is a follow-on to JEP
353 (see above), which already reimplemented the legacy Socket API.
Vector API
==========
https://openjdk.java.net/jeps/338
https://openjdk.java.net/jeps/414
Provide an initial iteration of an incubator module,
`jdk.incubator.vector`, to express vector computations that reliably
compile at runtime to optimal vector hardware instructions on
supported CPU architectures and thus achieve superior performance to
equivalent scalar computations.
This is an incubation feature (https://openjdk.java.net/jeps/11)
introduced in OpenJDK 16.
Unix-Domain Socket Channels
===========================
https://openjdk.java.net/jeps/380
security-libs/java.security:
Add Unix-domain (`AF_UNIX`) socket support to the socket channel and
server-socket channel APIs in the `java.nio.channels` package. Extend
the inherited channel mechanism to support Unix-domain socket channels
and server socket channels.
JDK-8250756: Added Entrust Root Certification Authority - G4 certificate
========================================================================
The Entrust root certificate has been added to the cacerts truststore:
Foreign Linker API (Incubator)
==============================
https://openjdk.java.net/jeps/389
Alias Name: entrustrootcag4
Distinguished Name: CN=Entrust Root Certification Authority - G4, OU="(c) 2015 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
Introduce an API that offers statically-typed, pure-Java access to
native code. This API, together with the Foreign-Memory API (see
above), will considerably simplify the otherwise error-prone process
of binding to a native library.
JDK-8250860: Added 3 SSL Corporation Root CA Certificates
This was an incubation feature (https://openjdk.java.net/jeps/11)
introduced in OpenJDK 16, now superseded by the Foreign Function &
Memory API in OpenJDK 17 (see below).
Strongly Encapsulate JDK Internals by Default
=============================================
https://openjdk.java.net/jeps/396
https://openjdk.java.net/jeps/403
Strongly encapsulate all internal elements of the JDK by default,
except for critical internal APIs such as `sun.misc.Unsafe`. It will
no longer be possible to relax the strong encapsulation of internal
elements via a single command-line option, as was possible in OpenJDK
9 through 16.
Enhanced Pseudo-Random Number Generators
========================================
https://openjdk.java.net/jeps/356
Provide new interface types and implementations for pseudo-random
number generators (PRNGs), including jumpable PRNGs and an additional
class of splittable PRNG algorithms (LXM).
Foreign Function & Memory API
=============================
https://openjdk.java.net/jeps/412
Introduce an API by which Java programs can interoperate with code and
data outside of the Java runtime. By efficiently invoking foreign
functions (i.e., code outside the JVM), and by safely accessing
foreign memory (i.e., memory not managed by the JVM), the API enables
Java programs to call native libraries and process native data without
the brittleness and danger of JNI.
This API is an incubation feature (https://openjdk.java.net/jeps/11)
introduced in OpenJDK 17, and is an evolution of the Foreign Memory
Access API (OpenJDK 14 through 16) and Foreign Linker API (OpenJDK
16) (see above).
Context-Specific Deserialization Filters
========================================
https://openjdk.java.net/jeps/415
Allow applications to configure context-specific and
dynamically-selected deserialization filters via a JVM-wide filter
factory that is invoked to select a filter for each individual
deserialization operation.
Tools
=====
Packaging Tool
==============
https://openjdk.java.net/jeps/343
https://openjdk.java.net/jeps/392
Provide the `jpackage` tool, for packaging self-contained Java
applications.
JVM Features
============
Shenandoah: A Low-Pause-Time Garbage Collector
==============================================
https://openjdk.java.net/jeps/189
https://openjdk.java.net/jeps/379
Add a new garbage collection (GC) algorithm named Shenandoah which
reduces GC pause times by doing evacuation work concurrently with the
running Java threads. Pause times with Shenandoah are independent of
heap size, meaning you will have the same consistent pause times
whether your heap is 200 MB or 200 GB.
Shenandoah has been provided in Red Hat builds of OpenJDK 8 since
8u131 in April 2017 and in all 11u builds.
Upstream, it was introduced in OpenJDK 12 as an experimental feature
and became a production feature in OpenJDK 15. It was backported to
OpenJDK 11 with the 11.0.9 release in October 2020.
Abortable Mixed Collections for G1
==================================
https://openjdk.java.net/jeps/344
Make G1 mixed collections abortable if they might exceed the pause
target.
Promptly Return Unused Committed Memory from G1
===============================================
https://openjdk.java.net/jeps/346
Enhance the G1 garbage collector to automatically return Java heap
memory to the operating system when idle.
Dynamic CDS Archives
====================
https://openjdk.java.net/jeps/310
https://openjdk.java.net/jeps/350
Extend application class-data sharing to allow the dynamic archiving
of classes at the end of Java application execution. The archived
classes will include all loaded application classes and library
classes that are not present in the default, base-layer CDS archive.
ZGC: Uncommit Unused Memory (Experimental)
==========================================
https://openjdk.java.net/jeps/351
Enhance ZGC to return unused heap memory to the operating system.
NUMA-Aware Memory Allocation for G1
===================================
https://openjdk.java.net/jeps/345
Improve G1 performance on large machines by implementing NUMA-aware
memory allocation.
ZGC on macOS (Experimental)
===========================
https://openjdk.java.net/jeps/364
Port the ZGC garbage collector to macOS.
ZGC on Windows (Experimental)
=============================
https://openjdk.java.net/jeps/365
Port the ZGC garbage collector to Windows.
ZGC: A Scalable Low-Latency Garbage Collector (Production)
==========================================================
https://openjdk.java.net/jeps/377
Change the Z Garbage Collector from an experimental feature into a
product feature.
ZGC: Concurrent Thread-Stack Processing
=======================================
https://openjdk.java.net/jeps/376
Move ZGC thread-stack processing from safepoints to a concurrent
phase.
Elastic Metaspace
=================
https://openjdk.java.net/jeps/387
Return unused HotSpot class-metadata (i.e., metaspace) memory to the
operating system more promptly, reduce metaspace footprint, and
simplify the metaspace code in order to reduce maintenance costs.
Ports
=====
Alpine Linux Port
=================
https://openjdk.java.net/jeps/386
Port the JDK to Alpine Linux, and to other Linux distributions that
use musl as their primary C library, on both the x64 and AArch64
architectures,
Windows/AArch64 Port
====================
https://openjdk.java.net/jeps/388
Port the JDK to Windows/AArch64.
New macOS Rendering Pipeline
============================
https://openjdk.java.net/jeps/382
Implement a Java 2D internal rendering pipeline for macOS using the
Apple Metal API as alternative to the existing pipeline, which uses
the deprecated Apple OpenGL API.
macOS/AArch64 Port
==================
https://openjdk.java.net/jeps/391
Port the JDK to macOS/AArch64.
DEPRECATIONS
============
Deprecate the ParallelScavenge + SerialOld GC Combination
=========================================================
The following root certificates have been added to the cacerts truststore for the SSL Corporation:
https://openjdk.java.net/jeps/366
Alias Name: sslrootrsaca
Distinguished Name: CN=SSL.com Root Certification Authority RSA, O=SSL Corporation, L=Houston, ST=Texas, C=US
Deprecate the combination of the Parallel Scavenge and Serial Old
garbage collection algorithms.
Alias Name: sslrootevrsaca
Distinguished Name: CN=SSL.com EV Root Certification Authority RSA R2, O=SSL Corporation, L=Houston, ST=Texas, C=US
Deprecate and Disable Biased Locking
====================================
https://openjdk.java.net/jeps/374
Alias Name: sslrooteccca
Distinguished Name: CN=SSL.com Root Certification Authority ECC, O=SSL Corporation, L=Houston, ST=Texas, C=US
Disable biased locking by default, and deprecate all related
command-line options.
Warnings for Value-Based Classes
================================
https://openjdk.java.net/jeps/390
Designate the primitive wrapper classes as value-based and deprecate
their constructors for removal, prompting new deprecation
warnings. Provide warnings about improper attempts to synchronize on
instances of any value-based classes in the Java Platform.
Deprecate the Applet API for Removal
====================================
https://openjdk.java.net/jeps/398
Deprecate the Applet API for removal. It is essentially irrelevant
since all web-browser vendors have either removed support for Java
browser plug-ins or announced plans to do so.
Deprecate the Security Manager for Removal
==========================================
https://openjdk.java.net/jeps/411
Deprecate the Security Manager for removal in a future release. The
Security Manager dates from Java 1.0. It has not been the primary
means of securing client-side Java code for many years, and it has
rarely been used to secure server-side code. To move Java forward, we
intend to deprecate the Security Manager for removal in concert with
the legacy Applet API (see above). .
REMOVALS
========
Remove the Concurrent Mark Sweep (CMS) Garbage Collector
========================================================
https://openjdk.java.net/jeps/363
Remove the Concurrent Mark Sweep (CMS) garbage collector.
Remove the Pack200 Tools and API
================================
https://openjdk.java.net/jeps/336
https://openjdk.java.net/jeps/367
Remove the `pack200` and `unpack200` tools, and the `Pack200` API in
the `java.util.jar` package. These tools and API were deprecated for
removal in OpenJDK 11 with the express intent to remove them in a
future release.
Remove the Nashorn JavaScript Engine
====================================
https://openjdk.java.net/jeps/372
Remove the Nashorn JavaScript script engine and APIs, and the `jjs`
tool. The engine, the APIs, and the tool were deprecated for removal
in OpenJDK 11 with the express intent to remove them in a future
release.
Remove the Solaris and SPARC Ports
==================================
https://openjdk.java.net/jeps/362
https://openjdk.java.net/jeps/381
Remove the source code and build support for the Solaris/SPARC,
Solaris/x64, and Linux/SPARC ports. These ports were deprecated for
removal in OpenJDK 14 (JEP 362) and removed in OpenJDK 15 (JEP 381).
Remove RMI Activation
=====================
https://openjdk.java.net/jeps/385
https://openjdk.java.net/jeps/407
https://docs.oracle.com/en/java/javase/14/docs/specs/rmi/activation.html
Remove the Remote Method Invocation (RMI) Activation mechanism, while
preserving the rest of RMI. RMI Activation is an obsolete part of RMI
that has been optional since OpenJDK 8 and was deprecated in OpenJDK
15.
Remove the Experimental AOT and JIT Compiler
============================================
https://openjdk.java.net/jeps/410
Remove the experimental Java-based ahead-of-time (AOT) and
just-in-time (JIT) compiler. This compiler has seen little use since
its introduction and the effort required to maintain it is
significant. Retain the experimental Java-level JVM compiler
interface (JVMCI) so that developers can continue to use
externally-built versions of the compiler for JIT compilation.

5
java-latest-openjdk.spec
View File

@ -298,7 +298,7 @@
%global top_level_dir_name %{origin}
%global top_level_dir_name_backup %{top_level_dir_name}-backup
%global buildver 35
%global rpmrelease 2
%global rpmrelease 3
# Priority must be 8 digits in total; up to openjdk 1.8, we were using 18..... so when we moved to 11, we had to add another digit
%if %is_system_jdk
# Using 10 digits may overflow the int used for priority, so we combine the patch and build versions
@ -2267,6 +2267,9 @@ cjc.mainProgram(args)
%endif
%changelog
* Mon Sep 27 2021 Andrew Hughes <gnu.andrew@redhat.com> - 1:17.0.0.0.35-3.rolling
- Update release notes to document the major changes between OpenJDK 11 & 17.
* Thu Sep 16 2021 Martin Balao <mbalao@redhat.com> - 1:17.0.0.0.35-2.rolling
- Add patch to disable non-FIPS crypto in the SUN and SunEC security providers.