Merge pull request #8603 from acozzette/merge-3.17.x

Merge 3.17.x into master
diff --git a/.gitignore b/.gitignore
index 4880c49..d38133b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -82,10 +82,7 @@
 src/**/*.trs
 
 # JavaBuild output.
-java/core/target
-java/lite/target
-java/util/target
-javanano/target
+java/**/target
 java/.idea
 java/**/*.iml
 
diff --git a/CHANGES.txt b/CHANGES.txt
index 91d0b75..4481b27 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,9 +1,12 @@
-Unreleased Changes (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
+2021-05-07 version 3.17.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
 
   Protocol Compiler
   * Fix the generated source information for reserved values in Enums.
 
   C++
+  * Fix -Wunused-parameter in map<string, int> fields (fixes #8494) (#8500)
+  * Use byteswap.h when building against musl libc (#8503)
+  * Fix -Wundefined-inline error when using SharedCtor() or SharedDtor() (#8532)
   * Fix bug where `Descriptor::DebugString()` printed proto3 synthetic oneofs.
   * Provide stable versions of `SortAndUnique()`.
   * Make sure to cache proto3 optional message fields when they are cleared.
@@ -14,6 +17,7 @@
   * Restrict extension setter and getter operators to non-nullable T.
 
   Java
+  * updating GSON and Guava to more recent versions (#8524)
   * Reduce the time spent evaluating isExtensionNumber by storing the extension
     ranges in a TreeMap for faster queries. This is particularly relevant for
     protos which define a large number of extension ranges, for example when
@@ -22,14 +26,28 @@
   * Optimize Descriptor.isExtensionNumber.
 
   Python
+  * Add MethodDescriptor.CopyToProto() (#8327)
+  * Remove unused python_protobuf.{cc,h} (#8513)
+  * Start publishing python aarch64 manylinux wheels normally (#8530)
+  * Fix constness issue detected by MSVC standard conforming mode (#8568)
   * Make JSON parsing match C++ and Java when multiple fields from the same
     oneof are present and all but one is null.
 
+  Ruby
+  * Add support for proto3 json_name in compiler and field definitions (#8356)
+  * Fixed memory leak of Ruby arena objects. (#8461)
+  * Fix source gem compilation (#8471)
+  * Fix various exceptions in Ruby on 64-bit Windows (#8563)
+  * Fix crash when calculating Message hash values on 64-bit Windows (#8565)
+
   Conformance Tests
   * Added a conformance test for the case of multiple fields from the same
     oneof.
 
 2021-04-06 version 3.16.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
+  Other
+  * Opensourcing kotlin protos (#8272)
+  * Use a newer version of rules_proto, with the new rule `proto_descriptor_set` (#8469)
 
   C++
   * Fix compiler warnings issue found in conformance_test_runner #8189 (#8190)
diff --git a/Protobuf-C++.podspec b/Protobuf-C++.podspec
index c36c0f4..57d58f4 100644
--- a/Protobuf-C++.podspec
+++ b/Protobuf-C++.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name     = 'Protobuf-C++'
-  s.version  = '3.17.0-rc1'
+  s.version  = '3.17.0'
   s.summary  = 'Protocol Buffers v3 runtime library for C++.'
   s.homepage = 'https://github.com/google/protobuf'
   s.license  = '3-Clause BSD License'
diff --git a/Protobuf.podspec b/Protobuf.podspec
index 399ed65..1c2b198 100644
--- a/Protobuf.podspec
+++ b/Protobuf.podspec
@@ -5,7 +5,7 @@
 # dependent projects use the :git notation to refer to the library.
 Pod::Spec.new do |s|
   s.name     = 'Protobuf'
-  s.version  = '3.17.0-rc1'
+  s.version  = '3.17.0'
   s.summary  = 'Protocol Buffers v.3 runtime library for Objective-C.'
   s.homepage = 'https://github.com/protocolbuffers/protobuf'
   s.license  = '3-Clause BSD License'
diff --git a/configure.ac b/configure.ac
index df125d9..c36328c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@
 # In the SVN trunk, the version should always be the next anticipated release
 # version with the "-pre" suffix.  (We used to use "-SNAPSHOT" but this pushed
 # the size of one file name in the dist tarfile over the 99-char limit.)
-AC_INIT([Protocol Buffers],[3.17.0-rc-1],[protobuf@googlegroups.com],[protobuf])
+AC_INIT([Protocol Buffers],[3.17.0],[protobuf@googlegroups.com],[protobuf])
 
 AM_MAINTAINER_MODE([enable])
 
diff --git a/csharp/Google.Protobuf.Tools.nuspec b/csharp/Google.Protobuf.Tools.nuspec
index c9a89f4..fc01d76 100644
--- a/csharp/Google.Protobuf.Tools.nuspec
+++ b/csharp/Google.Protobuf.Tools.nuspec
@@ -5,7 +5,7 @@
     <title>Google Protocol Buffers tools</title>
     <summary>Tools for Protocol Buffers - Google's data interchange format.</summary>
     <description>See project site for more info.</description>
-    <version>3.17.0-rc1</version>
+    <version>3.17.0</version>
     <authors>Google Inc.</authors>
     <owners>protobuf-packages</owners>
     <licenseUrl>https://github.com/protocolbuffers/protobuf/blob/master/LICENSE</licenseUrl>
diff --git a/csharp/src/Google.Protobuf/Google.Protobuf.csproj b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
index c3a171b..dcc88ef 100644
--- a/csharp/src/Google.Protobuf/Google.Protobuf.csproj
+++ b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
@@ -4,7 +4,7 @@
     <Description>C# runtime library for Protocol Buffers - Google's data interchange format.</Description>
     <Copyright>Copyright 2015, Google Inc.</Copyright>
     <AssemblyTitle>Google Protocol Buffers</AssemblyTitle>
-    <VersionPrefix>3.17.0-rc1</VersionPrefix>
+    <VersionPrefix>3.17.0</VersionPrefix>
     <!-- C# 7.2 is required for Span/BufferWriter/ReadOnlySequence -->
     <LangVersion>7.2</LangVersion>
     <Authors>Google Inc.</Authors>
diff --git a/java/bom/pom.xml b/java/bom/pom.xml
index 372917c..43717f7 100644
--- a/java/bom/pom.xml
+++ b/java/bom/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-bom</artifactId>
-  <version>3.17.0-rc-1</version>
+  <version>3.17.0</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [BOM]</name>
diff --git a/java/core/pom.xml b/java/core/pom.xml
index ca3255e..12fcdc1 100644
--- a/java/core/pom.xml
+++ b/java/core/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.17.0-rc-1</version>
+    <version>3.17.0</version>
   </parent>
 
   <artifactId>protobuf-java</artifactId>
diff --git a/java/kotlin-lite/pom.xml b/java/kotlin-lite/pom.xml
index 80b4c4f..5a70770 100644
--- a/java/kotlin-lite/pom.xml
+++ b/java/kotlin-lite/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.15.6</version>
+    <version>3.17.0</version>
   </parent>
 
   <artifactId>protobuf-kotlin-lite</artifactId>
diff --git a/java/kotlin/pom.xml b/java/kotlin/pom.xml
index 5f28125..a1e5018 100644
--- a/java/kotlin/pom.xml
+++ b/java/kotlin/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.15.6</version>
+    <version>3.17.0</version>
   </parent>
 
   <artifactId>protobuf-kotlin</artifactId>
diff --git a/java/lite/pom.xml b/java/lite/pom.xml
index da7ee82..6bd4653 100644
--- a/java/lite/pom.xml
+++ b/java/lite/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.17.0-rc-1</version>
+    <version>3.17.0</version>
   </parent>
 
   <artifactId>protobuf-javalite</artifactId>
diff --git a/java/pom.xml b/java/pom.xml
index b62b406..5bf80cd 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-parent</artifactId>
-  <version>3.17.0-rc-1</version>
+  <version>3.17.0</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [Parent]</name>
@@ -238,6 +238,8 @@
     <module>lite</module>
     <module>core</module>
     <module>util</module>
+    <module>kotlin</module>
+    <module>kotlin-lite</module>
   </modules>
 
 </project>
diff --git a/java/util/pom.xml b/java/util/pom.xml
index 2b38d8c..911acdd 100644
--- a/java/util/pom.xml
+++ b/java/util/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.17.0-rc-1</version>
+    <version>3.17.0</version>
   </parent>
 
   <artifactId>protobuf-java-util</artifactId>
diff --git a/js/package.json b/js/package.json
index c5e8674..f92a1a3 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "google-protobuf",
-  "version": "3.17.0-rc.1",
+  "version": "3.17.0",
   "description": "Protocol Buffers for JavaScript",
   "main": "google-protobuf.js",
   "files": [
diff --git a/kokoro/linux/dist_install/build.sh b/kokoro/linux/dist_install/build.sh
index 81a0516..c456ee8 100755
--- a/kokoro/linux/dist_install/build.sh
+++ b/kokoro/linux/dist_install/build.sh
@@ -7,8 +7,8 @@
 # Change to repo root
 cd $(dirname $0)/../../..
 
-# Run tests under release docker image.
-export DOCKERFILE_DIR=kokoro/linux/64-bit
+export DOCKERHUB_ORGANIZATION=protobuftesting
+export DOCKERFILE_DIR=kokoro/linux/dockerfile/test/java_stretch
 export DOCKER_RUN_SCRIPT=kokoro/linux/pull_request_in_docker.sh
 export OUTPUT_DIR=testoutput
 export TEST_SET="dist_install"
diff --git a/kokoro/linux/dockerfile/test/java_stretch/Dockerfile b/kokoro/linux/dockerfile/test/java_stretch/Dockerfile
index fc5e82a..3e72046 100644
--- a/kokoro/linux/dockerfile/test/java_stretch/Dockerfile
+++ b/kokoro/linux/dockerfile/test/java_stretch/Dockerfile
@@ -1,6 +1,6 @@
 FROM debian:stretch
 
-# Install dependencies.  We start with the basic ones require to build protoc
+# Install dependencies.  We start with the basic ones required to build protoc
 # and the C++ build
 RUN apt-get update && apt-get install -y \
   autoconf \
@@ -20,12 +20,11 @@
   parallel \
   time \
   wget \
-  && apt-get clean
-
-# Java dependencies
-RUN apt-get install -y \
-  # -- For all Java builds -- \
+  # Java dependencies
   maven \
-  # -- For java_linkage_monitor \
   openjdk-8-jdk \
+  # Python dependencies
+  python-setuptools \
+  python-pip \
+  virtualenv \
   && apt-get clean
diff --git a/php/ext/google/protobuf/package.xml b/php/ext/google/protobuf/package.xml
index 03f45ff..3d53f40 100644
--- a/php/ext/google/protobuf/package.xml
+++ b/php/ext/google/protobuf/package.xml
@@ -10,21 +10,19 @@
   <email>protobuf-opensource@google.com</email>
   <active>yes</active>
  </lead>
- <date>2021-05-06</date>
- <time>11:08:58</time>
+ <date>2021-05-11</date>
+ <time>13:29:14</time>
  <version>
-  <release>3.17.0RC1</release>
+  <release>3.17.0</release>
   <api>3.17.0</api>
  </version>
  <stability>
-  <release>beta</release>
-  <api>beta</api>
+  <release>stable</release>
+  <api>stable</api>
  </stability>
  <license uri="https://opensource.org/licenses/BSD-3-Clause">3-Clause BSD License</license>
  <notes>
- * read_property() handler is not supposed to return NULL (#8362)
- * Changed parameter type from long to integer (#7613)
- * fix: README supported PHP version for C extension (#8236)
+ No new changes in 3.17.0
  </notes>
  <contents>
   <dir baseinstalldir="/" name="/">
@@ -964,5 +962,35 @@
    <notes>
    </notes>
   </release>
+  <release>
+   <version>
+    <release>3.17.0RC2</release>
+    <api>3.17.0</api>
+   </version>
+   <stability>
+    <release>beta</release>
+    <api>beta</api>
+   </stability>
+   <date>2021-05-07</date>
+   <time>15:58:19</time>
+   <license uri="https://opensource.org/licenses/BSD-3-Clause">3-Clause BSD License</license>
+   <notes>
+   </notes>
+  </release>
+  <release>
+   <version>
+    <release>3.17.0</release>
+    <api>3.17.0</api>
+   </version>
+   <stability>
+    <release>stable</release>
+    <api>stable</api>
+   </stability>
+   <date>2021-05-11</date>
+   <time>13:29:14</time>
+   <license uri="https://opensource.org/licenses/BSD-3-Clause">3-Clause BSD License</license>
+   <notes>
+   </notes>
+  </release>
  </changelog>
 </package>
diff --git a/php/ext/google/protobuf/protobuf.h b/php/ext/google/protobuf/protobuf.h
index 2f3bddc..858b520 100644
--- a/php/ext/google/protobuf/protobuf.h
+++ b/php/ext/google/protobuf/protobuf.h
@@ -76,7 +76,7 @@
   ZEND_ARG_INFO(0, value)
 ZEND_END_ARG_INFO()
 
-#define PHP_PROTOBUF_VERSION "3.17.0RC1"
+#define PHP_PROTOBUF_VERSION "3.17.0"
 
 // ptr -> PHP object cache. This is a weak map that caches lazily-created
 // wrapper objects around upb types:
diff --git a/protoc-artifacts/pom.xml b/protoc-artifacts/pom.xml
index 6922d64..00fe9ff 100644
--- a/protoc-artifacts/pom.xml
+++ b/protoc-artifacts/pom.xml
@@ -8,7 +8,7 @@
   </parent>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protoc</artifactId>
-  <version>3.17.0-rc-1</version>
+  <version>3.17.0</version>
   <packaging>pom</packaging>
   <name>Protobuf Compiler</name>
   <description>
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index 04d921d..2f5ad27 100644
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -30,4 +30,4 @@
 
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '3.17.0rc1'
+__version__ = '3.17.0'
diff --git a/ruby/google-protobuf.gemspec b/ruby/google-protobuf.gemspec
index e87bcc9..2ba7eab 100644
--- a/ruby/google-protobuf.gemspec
+++ b/ruby/google-protobuf.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = "google-protobuf"
-  s.version     = "3.17.0.rc.1"
+  s.version     = "3.17.0"
   git_tag       = "v#{s.version.to_s.sub('.rc.', '-rc')}" # Converts X.Y.Z.rc.N to vX.Y.Z-rcN, used for the git tag
   s.licenses    = ["BSD-3-Clause"]
   s.summary     = "Protocol Buffers"
diff --git a/src/google/protobuf/arena.h b/src/google/protobuf/arena.h
index f84e505..e5d79d1 100644
--- a/src/google/protobuf/arena.h
+++ b/src/google/protobuf/arena.h
@@ -709,7 +709,7 @@
   }
   template <typename T>
   PROTOBUF_ALWAYS_INLINE static Arena* GetOwningArenaInternal(
-      const T* value, std::false_type) {
+      const T* /* value */, std::false_type) {
     return nullptr;
   }
 
diff --git a/src/google/protobuf/compiler/java/java_helpers.h b/src/google/protobuf/compiler/java/java_helpers.h
index 13dd903..5dc25d6 100644
--- a/src/google/protobuf/compiler/java/java_helpers.h
+++ b/src/google/protobuf/compiler/java/java_helpers.h
@@ -155,6 +155,7 @@
 // Whether we should generate multiple java files for messages.
 inline bool MultipleJavaFiles(const FileDescriptor* descriptor,
                               bool immutable) {
+  (void) immutable;
   return descriptor->options().java_multiple_files();
 }
 
@@ -244,15 +245,15 @@
 bool IsByteStringWithCustomDefaultValue(const FieldDescriptor* field);
 
 // Does this message class have descriptor and reflection methods?
-inline bool HasDescriptorMethods(const Descriptor* descriptor,
+inline bool HasDescriptorMethods(const Descriptor* /* descriptor */,
                                  bool enforce_lite) {
   return !enforce_lite;
 }
-inline bool HasDescriptorMethods(const EnumDescriptor* descriptor,
+inline bool HasDescriptorMethods(const EnumDescriptor* /* descriptor */,
                                  bool enforce_lite) {
   return !enforce_lite;
 }
-inline bool HasDescriptorMethods(const FileDescriptor* descriptor,
+inline bool HasDescriptorMethods(const FileDescriptor* /* descriptor */,
                                  bool enforce_lite) {
   return !enforce_lite;
 }
diff --git a/src/google/protobuf/port_def.inc b/src/google/protobuf/port_def.inc
index c257553..811d75e 100644
--- a/src/google/protobuf/port_def.inc
+++ b/src/google/protobuf/port_def.inc
@@ -122,7 +122,7 @@
 #ifdef PROTOBUF_VERSION_SUFFIX
 #error PROTOBUF_VERSION_SUFFIX was previously defined
 #endif
-#define PROTOBUF_VERSION_SUFFIX "-rc1"
+#define PROTOBUF_VERSION_SUFFIX ""
 
 #if defined(PROTOBUF_NAMESPACE) || defined(PROTOBUF_NAMESPACE_ID)
 #error PROTOBUF_NAMESPACE or PROTOBUF_NAMESPACE_ID was previously defined
diff --git a/src/google/protobuf/stubs/common.h b/src/google/protobuf/stubs/common.h
index 25078af..4faf238 100644
--- a/src/google/protobuf/stubs/common.h
+++ b/src/google/protobuf/stubs/common.h
@@ -85,7 +85,7 @@
 #define GOOGLE_PROTOBUF_VERSION 3017000
 
 // A suffix string for alpha, beta or rc releases. Empty for stable releases.
-#define GOOGLE_PROTOBUF_VERSION_SUFFIX "-rc1"
+#define GOOGLE_PROTOBUF_VERSION_SUFFIX ""
 
 // The minimum header version which works with the current version of
 // the library.  This constant should only be used by protoc's C++ code
diff --git a/tests.sh b/tests.sh
index 972e64f..923201a 100755
--- a/tests.sh
+++ b/tests.sh
@@ -104,7 +104,7 @@
 
   # Try to install Java
   pushd java
-  use_java jdk7
+  use_java jdk8
   $MVN install
   popd
 
@@ -208,7 +208,13 @@
   # Java build needs `protoc`.
   internal_build_cpp
   cp -r java $dir
-  cd $dir && $MVN clean && $MVN test
+  cd $dir && $MVN clean
+  # Skip the Kotlin tests on Oracle 7
+  if [ "$version" == "oracle7" ]; then
+    $MVN test -pl bom,lite,core,util
+  else
+    $MVN test
+  fi
   cd ../..
 }
 
diff --git a/update_version.py b/update_version.py
index cb5ab98..5395bd8 100755
--- a/update_version.py
+++ b/update_version.py
@@ -228,6 +228,16 @@
       Find(Find(document.documentElement, 'parent'), 'version'),
       GetFullVersion()))
 
+  RewriteXml('java/kotlin/pom.xml',
+    lambda document : ReplaceText(
+      Find(Find(document.documentElement, 'parent'), 'version'),
+      GetFullVersion()))
+
+  RewriteXml('java/kotlin-lite/pom.xml',
+    lambda document : ReplaceText(
+      Find(Find(document.documentElement, 'parent'), 'version'),
+      GetFullVersion()))
+
   RewriteXml('protoc-artifacts/pom.xml',
     lambda document : ReplaceText(
       Find(document.documentElement, 'version'), GetFullVersion()))