Merge remote-tracking branch 'upstream/master' into dragonwell

Summary: Merge upstream code

Testing: CICD

Reviewers: kuaiwei, yuleil

Issue: #225

Author: Ann-1024

.github/workflows/build-macos.yml

@@ -55,7 +55,7 @@ on:
 jobs:
   build-macos:
     name: build
-    runs-on: macos-13
+    runs-on: macos-15-intel
 
     strategy:
       fail-fast: false
@@ -84,7 +84,7 @@ jobs:
         run: |
           # Run Homebrew installation and xcode-select
           brew install make
-          sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-toolset-version }}.app/Contents/Developer
+          sudo xcode-select --switch /Applications/Xcode_16.4.app/Contents/Developer
           # This will make GNU make available as 'make' and not only as 'gmake'
           echo '/usr/local/opt/make/libexec/gnubin' >> $GITHUB_PATH
 

.github/workflows/main.yml

@@ -152,37 +152,3 @@ jobs:
       bootjdk-platform: windows-x64
       runs-on: '"windows-2025"'
 
-  # Remove bundles so they are not misconstrued as binary distributions from the JDK project
-  remove-bundles:
-    name: 'Remove bundle artifacts'
-    runs-on: ubuntu-22.04
-    # if: always()
-    needs:
-      - build-linux-x64
-      - build-linux-aarch64
-      - build-windows-x64
-      - build-riscv64
-      - test-linux-x64
-      - test-windows-x64
-
-    steps:
-      - name: 'Remove bundle artifacts'
-        run: |
-          # Find and remove all bundle artifacts
-          # See: https://docs.github.com/en/rest/actions/artifacts?apiVersion=2022-11-28
-          ALL_ARTIFACT_IDS="$(curl -sL \
-              -H 'Accept: application/vnd.github+json' \
-              -H 'Authorization: Bearer ${{ github.token }}' \
-              -H 'X-GitHub-Api-Version: 2022-11-28' \
-              '${{ github.api_url }}/repos/${{ github.repository }}/actions/runs/${{ github.run_id }}/artifacts?per_page=100')"
-          BUNDLE_ARTIFACT_IDS="$(echo "$ALL_ARTIFACT_IDS" | jq -r -c '.artifacts | map(select(.name|startswith("bundles-"))) | .[].id')"
-          for id in $BUNDLE_ARTIFACT_IDS; do
-            echo "Removing $id"
-            curl -sL \
-                -X DELETE \
-                -H 'Accept: application/vnd.github+json' \
-                -H 'Authorization: Bearer ${{ github.token }}' \
-                -H 'X-GitHub-Api-Version: 2022-11-28' \
-                "${{ github.api_url }}/repos/${{ github.repository }}/actions/artifacts/$id" \
-            || echo "Failed to remove bundle"
-          done

.github/workflows/test.yml

@@ -169,11 +169,18 @@ jobs:
         run: |
           # On macOS we need to install some dependencies for testing
           brew install make
-          sudo xcode-select --switch /Applications/Xcode_14.3.1.app/Contents/Developer
+          sudo xcode-select --switch /Applications/Xcode_16.4.app/Contents/Developer
           # This will make GNU make available as 'make' and not only as 'gmake'
           echo '/usr/local/opt/make/libexec/gnubin' >> $GITHUB_PATH
         if: runner.os == 'macOS' && steps.check_if_run.outputs.should_run != 'false'
 
+      # Fixes JDK-8336451
+      - name: 'Update /etc/hosts on macos'
+        run: |
+          echo -e "127.0.0.1     $(hostname -f) $(hostname -s)" | sudo tee -a /etc/hosts
+          echo -e "" | sudo tee -a /etc/hosts
+        if: runner.os == 'macOS'
+
       - name: 'Set PATH'
         id: path
         run: |

.jcheck/conf

@@ -1,7 +1,7 @@
 [general]
 project=jdk-updates
 jbs=JDK
-version=11.0.29
+version=11.0.31
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists

doc/building.html

@@ -296,6 +296,10 @@ <h2 id="native-compiler-toolchain-requirements">Native Compiler (Toolchain) Requ
 </tr>
 </tbody>
 </table>
+<p>All compilers are expected to be able to compile to the C99 language standard,
+as some C99 features are used in the source code. Microsoft Visual Studio
+doesn't fully support C99 so in practice shared code is limited to using C99
+features that it does support.</p>
 <h3 id="gcc">gcc</h3>
 <p>The minimum accepted version of gcc is 4.8. Older versions will generate a warning by <code>configure</code> and are unlikely to work.</p>
 <p>The JDK is currently known to be able to compile with at least version 7.4 of gcc.</p>

doc/building.md

@@ -313,6 +313,11 @@ issues.
 | Solaris            | Oracle Solaris Studio 12.4 (with compiler version 5.13) |
 | Windows            | Microsoft Visual Studio 2017 update 15.9.16             |
 
+All compilers are expected to be able to compile to the C99 language standard,
+as some C99 features are used in the source code. Microsoft Visual Studio
+doesn't fully support C99 so in practice shared code is limited to using C99
+features that it does support.
+
 ### gcc
 
 The minimum accepted version of gcc is 4.8. Older versions will generate a warning

make/autoconf/flags-cflags.m4

@@ -563,7 +563,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
     TOOLCHAIN_CFLAGS="-errshort=tags"
 
     TOOLCHAIN_CFLAGS_JDK="-mt $TOOLCHAIN_FLAGS"
-    TOOLCHAIN_CFLAGS_JDK_CONLY="-xCC -Xa -W0,-noglobal $TOOLCHAIN_CFLAGS" # C only
+    TOOLCHAIN_CFLAGS_JDK_CONLY="-W0,-noglobal $TOOLCHAIN_CFLAGS" # C only
     TOOLCHAIN_CFLAGS_JDK_CXXONLY="-features=no%except -norunpath -xnolib" # CXX only
     TOOLCHAIN_CFLAGS_JVM="-template=no%extdef -features=no%split_init \
         -library=stlport4 -mt -features=no%except $TOOLCHAIN_FLAGS"
@@ -584,6 +584,30 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
     TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:wchar_t-"
   fi
 
+  # CFLAGS C language level for JDK sources (hotspot only uses C++)
+  # Ideally we would have a common level across all toolchains so that all sources
+  # are sure to conform to the same standard. Unfortunately neither our sources nor
+  # our toolchains are in a condition to support that. But what we loosely aim for is
+  # C99 level.
+  if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xxlc; then
+    # This raises the language level for older 4.8 gcc, while lowering it for later
+    # versions. clang and xlclang support the same flag.
+    LANGSTD_CFLAGS="-std=c99"
+  elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
+    # We can't turn on -std=c99 without breaking compilation of the splashscreen/png
+    # utilities. But we can enable c99 as below (previously achieved by using -Xa).
+    # It is the no_lib that makes the difference.
+    LANGSTD_CFLAGS="-xc99=all,no_lib"
+  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+    # MSVC doesn't support C99/C11 explicitly, unless you compile as C++:
+    # LANGSTD_CFLAGS="/TP"
+    # but that requires numerous changes to the sources files. So we are limited
+    # to C89/C90 plus whatever extensions Visual Studio has decided to implement.
+    # This is the lowest bar for shared code.
+    LANGSTD_CFLAGS=""
+  fi
+  TOOLCHAIN_CFLAGS_JDK_CONLY="$LANGSTD_CFLAGS $TOOLCHAIN_CFLAGS_JDK_CONLY"
+
   # CFLAGS WARNINGS STUFF
   # Set JVM_CFLAGS warning handling
   if test "x$TOOLCHAIN_TYPE" = xgcc; then

make/autoconf/flags.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -114,16 +114,12 @@ AC_DEFUN([FLAGS_SETUP_MACOSX_VERSION],
     # The expected format for <version> is either nn.n.n or nn.nn.nn. See
     # /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/AvailabilityVersions.h
 
-    # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built
+    # MACOSX_VERSION_MIN specifies the lowest version of macOS that the built
     # binaries should be compatible with, even if compiled on a newer version
     # of the OS. It currently has a hard coded value. Setting this also limits
     # exposure to API changes in header files. Bumping this is likely to
     # require code changes to build.
-    if test "x$OPENJDK_TARGET_CPU_ARCH" = xaarch64; then
-      MACOSX_VERSION_MIN=11.00.00
-    else
-      MACOSX_VERSION_MIN=10.12.0
-    fi
+    MACOSX_VERSION_MIN=11.00.00
     MACOSX_VERSION_MIN_NODOTS=${MACOSX_VERSION_MIN//\./}
 
     AC_SUBST(MACOSX_VERSION_MIN)

make/autoconf/version-numbers

@@ -28,16 +28,16 @@
 
 DEFAULT_VERSION_FEATURE=11
 DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=29
+DEFAULT_VERSION_UPDATE=31
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2025-10-21
+DEFAULT_VERSION_DATE=2026-04-21
 DEFAULT_VERSION_CLASSFILE_MAJOR=55  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_ACCEPTABLE_BOOT_VERSIONS="10 11"
-DEFAULT_PROMOTED_VERSION_PRE=
+DEFAULT_PROMOTED_VERSION_PRE=ea
 
 LAUNCHER_NAME=openjdk
 PRODUCT_NAME=OpenJDK

make/conf/jib-profiles.js

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -415,7 +415,7 @@ var getJibProfilesProfiles = function (input, common, data) {
             target_cpu: "x64",
             dependencies: ["devkit", "graalunit_lib"],
             configure_args: concat(common.configure_args_64bit, "--with-zlib=system",
-                "--with-macosx-version-max=10.12.00"),
+                "--with-macosx-version-max=11.00.00"),
         },
 
         "solaris-x64": {