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Closes #11017. Test Plan: 1. Create java_tools from this commit: $ bazel build src:java_tools_java14.zip 2. Switch to using the java_tools from the above step in WORKSPACE file: load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive") http_archive( name = "remote_java_tools_linux", urls = [ "file:///<path to the java_tools_java14.zip>", ], ) 3. Add Zulu OpenJDK14 to use as javabase in WORKSPACE file: http_archive( name = "openjdk14_linux_archive", build_file_content = """ java_runtime(name = 'runtime', srcs = glob(['**']), visibility = ['//visibility:public']) exports_files(["WORKSPACE"], visibility = ["//visibility:public"]) """, sha256 = "48bb8947034cd079ad1ef83335e7634db4b12a26743a0dc314b6b861480777aa", strip_prefix = "zulu14.28.21-ca-jdk14.0.1-linux_x64", urls = ["https://cdn.azul.com/zulu/bin/zulu14.28.21-ca-jdk14.0.1-linux_x64.tar.gz"], ) 4. Activate custom java toolchain and javabase in .bazelrc file: build --java_toolchain=@remote_java_tools_linux//:toolchain_jdk_14 build --host_java_toolchain=@remote_java_tools_linux//:toolchain_jdk_14 build --javabase=@openjdk14_linux_archive//:runtime build --host_javabase=@openjdk14_linux_archive//:runtime 5. Create Java 14 example class file: public class Javac14Example { record Point(int x, int y) {} public static void main(String[] args) { Point point = new Point(0, 1); System.out.println(point.x); } } 6. Add Bazel file to build Java 14 syntax class with activated preview features: java_binary( name = "Javac14Example", srcs = ["Javac14Example.java"], javacopts = ["--enable-preview"], jvm_flags = ["--enable-preview"], main_class = "Javac14Example", ) 7. Test that it works as expected: $ bazel run java:Javac14Example INFO: Analyzed target //java:Javac14Example (1 packages loaded, 2 targets configured). INFO: Found 1 target... INFO: From Building java/Javac14Example.jar (1 source file): Note: java/Javac14Example.java uses preview language features. Note: Recompile with -Xlint:preview for details. Target //java:Javac14Example up-to-date: bazel-bin/java/Javac14Example.jar bazel-bin/java/Javac14Example INFO: Elapsed time: 1.502s, Critical Path: 1.30s INFO: 1 process: 1 worker. INFO: Build completed successfully, 2 total actions INFO: Build completed successfully, 2 total actions 0
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| #!/bin/bash | ||
| # | ||
| # Copyright 2020 The Bazel Authors. All rights reserved. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
| # | ||
| # Tests that bazel runs projects with Java 14 features. | ||
|
|
||
| # --- begin runfiles.bash initialization --- | ||
| if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then | ||
| if [[ -f "$0.runfiles_manifest" ]]; then | ||
| export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest" | ||
| elif [[ -f "$0.runfiles/MANIFEST" ]]; then | ||
| export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST" | ||
| elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then | ||
| export RUNFILES_DIR="$0.runfiles" | ||
| fi | ||
| fi | ||
| if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then | ||
| source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash" | ||
| elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then | ||
| source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \ | ||
| "$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)" | ||
| else | ||
| echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash" | ||
| exit 1 | ||
| fi | ||
| # --- end runfiles.bash initialization --- | ||
|
|
||
| source "$(rlocation "io_bazel/src/test/shell/integration_test_setup.sh")" \ | ||
| || { echo "integration_test_setup.sh not found!" >&2; exit 1; } | ||
|
|
||
| case "$(uname -s | tr [:upper:] [:lower:])" in | ||
| msys*|mingw*|cygwin*) | ||
| declare -r is_windows=true | ||
| ;; | ||
| *) | ||
| declare -r is_windows=false | ||
| ;; | ||
| esac | ||
|
|
||
| if "$is_windows"; then | ||
| export MSYS_NO_PATHCONV=1 | ||
| export MSYS2_ARG_CONV_EXCL="*" | ||
| fi | ||
|
|
||
| JAVA_TOOLCHAIN="$1"; shift | ||
| JAVA_TOOLS_ZIP="$1"; shift | ||
| JAVA_RUNTIME="$1"; shift | ||
|
|
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| echo "JAVA_TOOLS_ZIP=$JAVA_TOOLS_ZIP" | ||
|
|
||
|
|
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| JAVA_TOOLS_RLOCATION=$(rlocation io_bazel/$JAVA_TOOLS_ZIP) | ||
|
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| if "$is_windows"; then | ||
| JAVA_TOOLS_ZIP_FILE_URL="file:///${JAVA_TOOLS_RLOCATION}" | ||
| else | ||
| JAVA_TOOLS_ZIP_FILE_URL="file://${JAVA_TOOLS_RLOCATION}" | ||
| fi | ||
| JAVA_TOOLS_ZIP_FILE_URL=${JAVA_TOOLS_ZIP_FILE_URL:-} | ||
|
|
||
| add_to_bazelrc "build --java_toolchain=${JAVA_TOOLCHAIN}" | ||
| add_to_bazelrc "build --host_java_toolchain=${JAVA_TOOLCHAIN}" | ||
| add_to_bazelrc "build --javabase=${JAVA_RUNTIME}" | ||
| add_to_bazelrc "build --host_javabase=${JAVA_RUNTIME}" | ||
|
|
||
| function set_up() { | ||
| cat >>WORKSPACE <<EOF | ||
| load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive") | ||
| # java_tools versions only used to test Bazel with various JDK toolchains. | ||
| http_archive( | ||
| name = "local_java_tools", | ||
| urls = ["${JAVA_TOOLS_ZIP_FILE_URL}"] | ||
| ) | ||
| EOF | ||
| cat $(rlocation io_bazel/src/test/shell/bazel/testdata/jdk_http_archives) >> WORKSPACE | ||
| } | ||
|
|
||
| function test_java14_record_type() { | ||
| mkdir -p java/main | ||
| cat >java/main/BUILD <<EOF | ||
| java_binary( | ||
| name = 'Javac14Example', | ||
| srcs = ['Javac14Example.java'], | ||
| main_class = 'Javac14Example', | ||
| javacopts = ["--enable-preview"], | ||
| jvm_flags = ["--enable-preview"], | ||
| ) | ||
| EOF | ||
|
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||
| cat >java/main/Javac14Example.java <<EOF | ||
| public class Javac14Example { | ||
| record Point(int x, int y) {} | ||
| public static void main(String[] args) { | ||
| Point point = new Point(0, 1); | ||
| System.out.println(point.x); | ||
| } | ||
| } | ||
| EOF | ||
| bazel run java/main:Javac14Example --test_output=all --verbose_failures &>"${TEST_log}" | ||
| expect_log "0" | ||
| } | ||
|
|
||
| run_suite "Tests new Java 14 language features" |
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