Java 16 toolchain

WORKSPACE

@@ -623,6 +623,62 @@ http_archive(
     ],
 )
 
+# This must be kept in sync with src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
+http_archive(
+    name = "remotejdk16_linux_for_testing",
+    build_file = "@local_jdk//:BUILD.bazel",
+    patch_cmds = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE,
+    patch_cmds_win = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE_WIN,
+    sha256 = "236b5ea97aff3cb312e743848d7efa77faf305170e41371a732ca93c1b797665",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-linux_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
+http_archive(
+    name = "remotejdk16_macos_for_testing",
+    build_file = "@local_jdk//:BUILD.bazel",
+    patch_cmds = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE,
+    patch_cmds_win = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE_WIN,
+    sha256 = "6d47ef22dc56ce1f5a102ed39e21d9a97320f0bb786818e2c686393109d79bc5",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
+http_archive(
+    name = "remotejdk16_macos_aarch64_for_testing",
+    build_file = "@local_jdk//:BUILD.bazel",
+    patch_cmds = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE,
+    patch_cmds_win = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE_WIN,
+    sha256 = "c92131e83bc71474850e667bc4e05fca33662b8feb009a0547aa14e76b40e890",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_aarch64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
+http_archive(
+    name = "remotejdk16_win_for_testing",
+    build_file = "@local_jdk//:BUILD.bazel",
+    patch_cmds = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE,
+    patch_cmds_win = EXPORT_WORKSPACE_IN_BUILD_BAZEL_FILE_WIN,
+    sha256 = "6cbf98ada27476526a5f6dff79fd5f2c15e2f671818e503bdf741eb6c8fed3d4",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-win_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+    ],
+)
+
 # Used in src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
 dist_http_archive(
     name = "remote_java_tools_for_testing",
@@ -790,6 +846,66 @@ exports_files(["WORKSPACE"], visibility = ["//visibility:public"])
     ],
 )
 
+# This must be kept in sync with src/test/shell/bazel/testdata/jdk_http_archives.
+http_archive(
+    name = "openjdk16_linux_archive",
+    build_file_content = """
+java_runtime(name = 'runtime', srcs =  glob(['**']), visibility = ['//visibility:public'])
+exports_files(["WORKSPACE"], visibility = ["//visibility:public"])
+""",
+    sha256 = "236b5ea97aff3cb312e743848d7efa77faf305170e41371a732ca93c1b797665",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-linux_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/test/shell/bazel/testdata/jdk_http_archives.
+http_archive(
+    name = "openjdk16_darwin_archive",
+    build_file_content = """
+java_runtime(name = 'runtime', srcs =  glob(['**']), visibility = ['//visibility:public'])
+exports_files(["WORKSPACE"], visibility = ["//visibility:public"])
+""",
+    sha256 = "6d47ef22dc56ce1f5a102ed39e21d9a97320f0bb786818e2c686393109d79bc5",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/test/shell/bazel/testdata/jdk_http_archives.
+http_archive(
+    name = "openjdk16_darwin_aarch64_archive",
+    build_file_content = """
+java_runtime(name = 'runtime', srcs =  glob(['**']), visibility = ['//visibility:public'])
+exports_files(["WORKSPACE"], visibility = ["//visibility:public"])
+""",
+    sha256 = "c92131e83bc71474850e667bc4e05fca33662b8feb009a0547aa14e76b40e890",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_aarch64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+    ],
+)
+
+# This must be kept in sync with src/test/shell/bazel/testdata/jdk_http_archives.
+http_archive(
+    name = "openjdk16_windows_archive",
+    build_file_content = """
+java_runtime(name = 'runtime', srcs =  glob(['**']), visibility = ['//visibility:public'])
+exports_files(["WORKSPACE"], visibility = ["//visibility:public"])
+""",
+    sha256 = "6cbf98ada27476526a5f6dff79fd5f2c15e2f671818e503bdf741eb6c8fed3d4",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-win_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+    ],
+)
+
 load("@io_bazel_skydoc//:setup.bzl", "stardoc_repositories")
 
 stardoc_repositories()

src/BUILD

@@ -715,6 +715,10 @@ filegroup(
         "@openjdk15_darwin_archive//:WORKSPACE",
         "@openjdk15_linux_archive//:WORKSPACE",
         "@openjdk15_windows_archive//:WORKSPACE",
+        "@openjdk16_darwin_aarch64_archive//:WORKSPACE",
+        "@openjdk16_darwin_archive//:WORKSPACE",
+        "@openjdk16_linux_archive//:WORKSPACE",
+        "@openjdk16_windows_archive//:WORKSPACE",
         "@openjdk_linux_aarch64_minimal//file",
         "@openjdk_linux_minimal//file",
         "@openjdk_macos_aarch64_minimal//file",
@@ -740,6 +744,10 @@ filegroup(
         "@remotejdk15_macos_aarch64_for_testing//:WORKSPACE",
         "@remotejdk15_macos_for_testing//:WORKSPACE",
         "@remotejdk15_win_for_testing//:WORKSPACE",
+        "@remotejdk16_linux_for_testing//:WORKSPACE",
+        "@remotejdk16_macos_aarch64_for_testing//:WORKSPACE",
+        "@remotejdk16_macos_for_testing//:WORKSPACE",
+        "@remotejdk16_win_for_testing//:WORKSPACE",
         "@rules_cc//:WORKSPACE",
         "@rules_java//:WORKSPACE",
         "@rules_pkg//:WORKSPACE",

src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.tmpl

@@ -200,6 +200,74 @@ maybe(
     version = "15",
 )
 
+# This must be kept in sync with the top-level WORKSPACE file.
+maybe(
+    remote_java_repository,
+    name = "remotejdk16_linux",
+    exec_compatible_with = [
+        "@platforms//os:linux",
+        "@platforms//cpu:x86_64",
+    ],
+    sha256 = "236b5ea97aff3cb312e743848d7efa77faf305170e41371a732ca93c1b797665",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-linux_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz",
+    ],
+    version = "16",
+)
+
+# This must be kept in sync with the top-level WORKSPACE file.
+maybe(
+    remote_java_repository,
+    name = "remotejdk16_macos",
+    exec_compatible_with = [
+        "@platforms//os:macos",
+        "@platforms//cpu:x86_64",
+    ],
+    sha256 = "6d47ef22dc56ce1f5a102ed39e21d9a97320f0bb786818e2c686393109d79bc5",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_x64.tar.gz",
+    ],
+    version = "16",
+)
+
+# This must be kept in sync with the top-level WORKSPACE file.
+maybe(
+    remote_java_repository,
+    name = "remotejdk16_macos_aarch64",
+    exec_compatible_with = [
+        "@platforms//os:macos",
+        "@platforms//cpu:aarch64",
+    ],
+    sha256 = "c92131e83bc71474850e667bc4e05fca33662b8feb009a0547aa14e76b40e890",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-macosx_aarch64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-macosx_aarch64.tar.gz",
+    ],
+    version = "16",
+)
+
+# This must be kept in sync with the top-level WORKSPACE file.
+maybe(
+    remote_java_repository,
+    name = "remotejdk16_win",
+    exec_compatible_with = [
+        "@platforms//os:windows",
+        "@platforms//cpu:x86_64",
+    ],
+    sha256 = "6cbf98ada27476526a5f6dff79fd5f2c15e2f671818e503bdf741eb6c8fed3d4",
+    strip_prefix = "zulu16.28.11-ca-jdk16.0.0-win_x64",
+    urls = [
+        "https://mirror.bazel.build/cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+        "https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-win_x64.zip",
+    ],
+    version = "16",
+)
+
 {remote_java_tools}
 {remote_java_tools_linux}
 {remote_java_tools_windows}

src/test/py/bazel/test_base.py

@@ -68,6 +68,10 @@ class TestBase(unittest.TestCase):
       'remotejdk15_macos_for_testing',
       'remotejdk15_macos_aarch64_for_testing',
       'remotejdk15_win_for_testing',
+      'remotejdk16_linux_for_testing',
+      'remotejdk16_macos_for_testing',
+      'remotejdk16_macos_aarch64_for_testing',
+      'remotejdk16_win_for_testing',
       'remote_java_tools_for_testing',
       'remote_java_tools_darwin_for_testing',
       'remote_java_tools_linux_for_testing',

src/test/shell/bazel/BUILD

@@ -206,6 +206,24 @@ sh_test(
     tags = ["local"],
 )
 
+sh_test(
+    name = "bazel_java16_test",
+    srcs = ["bazel_java16_test.sh"],
+    args = [
+        # java_tools zip to test
+        "src/java_tools.zip",
+        "src/java_tools_prebuilt.zip",
+    ],
+    data = [
+        ":test-deps",
+        "//src:java_tools_prebuilt_zip",
+        "//src:java_tools_zip",
+        "//src/test/shell/bazel/testdata:jdk_http_archives_filegroup",
+        "@bazel_tools//tools/bash/runfiles",
+    ],
+    tags = ["local"],
+)
+
 sh_test(
     name = "bazel_java_test",
     # TODO(iirina): Investigate if the 'large' and 'eternal' values still apply.
@@ -224,7 +242,11 @@ sh_test(
     exec_compatible_with = ["//:highcpu_machine"],
 )
 
-JAVA_VERSIONS = ("11", "15")
+JAVA_VERSIONS = ("11", "15", "16")
+
+# TODO(davido): Enable test coverage for JDK 16 toolchain when this issue is fixed:
+# https://github.com/bazelbuild/bazel/issues/13358
+JAVA_VERSIONS_COVERAGE = ("11", "15")
 
 [
     sh_test(
@@ -484,7 +506,7 @@ sh_test(
             "no_windows",
         ],
     )
-    for java_version in JAVA_VERSIONS
+    for java_version in JAVA_VERSIONS_COVERAGE
 ]
 
 # Test java coverage with the java_toolchain in the java_tools zip built at head.
@@ -510,7 +532,7 @@ sh_test(
         ],
         tags = ["no_windows"],
     )
-    for java_version in JAVA_VERSIONS
+    for java_version in JAVA_VERSIONS_COVERAGE
 ]
 
 sh_test(

src/test/shell/bazel/bazel_java15_test.sh

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# Tests that bazel runs projects with Java 14 features.
+# Tests that bazel runs projects with Java 15 features.
 
 # --- begin runfiles.bash initialization ---
 if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
@@ -120,10 +120,6 @@ public class Javac15Example {
   }
 }
 EOF
-  bazel run java/main:Javac15Example --java_language_version=14 --java_runtime_version=14 \
-     --test_output=all --verbose_failures &>"${TEST_log}" \
-     && fail "Running with --java_language_version=14 unexpectedly succeeded."
-
   bazel run java/main:Javac15Example --java_language_version=11 --java_runtime_version=11 \
      --test_output=all --verbose_failures &>"${TEST_log}" \
      && fail "Running with --java_language_version=11 unexpectedly succeeded."