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Add version to JavaRuntimeInfo.
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1. As suggested in bazelbuild#6354 (comment), add a JDK version attribute to the java_runtime rule. This will allow changing behavior based on the Java runtime's version.

2. As an application of the above, pass -Djava.security.manager=allow to Java tests on JDK 17+. This makes the Bazel Java test runner to work on JDK 19. Fixes bazelbuild#14502.

3. To make the above generally useful, the remote_java_repository and local_java_repository must set the new version attribute in the java_runtime rules that they create. This means the old static jdk.BUILD file no longer suffices. Move the contents of jdk.BUILD into a Starlark file, so the version can be interpolated in by JDK repository rules and macros. (This isn't the nicest, but local_java_repository is not a repository rule, so the template cannot be in a non-Starlark file.)
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benjaminp committed Mar 14, 2023
1 parent 844b5d2 commit 5325aa9
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Showing 12 changed files with 51 additions and 11 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@
import com.google.devtools.build.lib.rules.java.JavaConfiguration.OneVersionEnforcementLevel;
import com.google.devtools.build.lib.rules.java.JavaHelper;
import com.google.devtools.build.lib.rules.java.JavaRuleOutputJarsProvider;
import com.google.devtools.build.lib.rules.java.JavaRuntimeInfo;
import com.google.devtools.build.lib.rules.java.JavaSemantics;
import com.google.devtools.build.lib.rules.java.JavaSourceJarsProvider;
import com.google.devtools.build.lib.rules.java.JavaTargetAttributes;
Expand Down Expand Up @@ -548,6 +549,9 @@ public Iterable<String> getJvmFlags(
if (testClass == null) {
ruleContext.ruleError("cannot determine test class");
} else {
if (JavaRuntimeInfo.from(ruleContext).version() >= 17) {
jvmFlags.add("-Djava.security.manager=allow");
}
// Always run junit tests with -ea (enable assertion)
jvmFlags.add("-ea");
// "suite" is a misnomer.
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Original file line number Diff line number Diff line change
@@ -1,14 +1,15 @@
# External dependencies for the java_* rules.
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
load("@bazel_tools//tools/jdk:jdk_build_file.bzl", "JDK_BUILD_TEMPLATE")
load("@bazel_tools//tools/jdk:local_java_repository.bzl", "local_java_repository")
load("@bazel_tools//tools/jdk:remote_java_repository.bzl", "remote_java_repository")

maybe(
local_java_repository,
name = "local_jdk",
java_home = DEFAULT_SYSTEM_JAVABASE,
build_file = "@bazel_tools//tools/jdk:jdk.BUILD",
build_file_content = JDK_BUILD_TEMPLATE,
)

# OpenJDK distributions that should only be downloaded on demand (e.g. when
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Expand Up @@ -15,6 +15,7 @@
package com.google.devtools.build.lib.rules.java;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.devtools.build.lib.packages.Type.INTEGER;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
Expand Down Expand Up @@ -129,7 +130,8 @@ public ConfiguredTarget create(RuleContext ruleContext)
hermeticInputs,
libModules,
defaultCDS,
hermeticStaticLibs);
hermeticStaticLibs,
ruleContext.attributes().get("version", INTEGER).toIntUnchecked());

TemplateVariableInfo templateVariableInfo =
new TemplateVariableInfo(
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,8 @@ public static JavaRuntimeInfo create(
NestedSet<Artifact> hermeticInputs,
@Nullable Artifact libModules,
@Nullable Artifact defaultCDS,
ImmutableList<CcInfo> hermeticStaticLibs) {
ImmutableList<CcInfo> hermeticStaticLibs,
int version) {
return new JavaRuntimeInfo(
javaBaseInputs,
javaHome,
Expand All @@ -62,7 +63,8 @@ public static JavaRuntimeInfo create(
hermeticInputs,
libModules,
defaultCDS,
hermeticStaticLibs);
hermeticStaticLibs,
version);
}

@Override
Expand Down Expand Up @@ -125,6 +127,7 @@ private static JavaRuntimeInfo from(RuleContext ruleContext, ToolchainInfo toolc
@Nullable private final Artifact libModules;
@Nullable private final Artifact defaultCDS;
private final ImmutableList<CcInfo> hermeticStaticLibs;
private final int version;

private JavaRuntimeInfo(
NestedSet<Artifact> javaBaseInputs,
Expand All @@ -135,7 +138,8 @@ private JavaRuntimeInfo(
NestedSet<Artifact> hermeticInputs,
@Nullable Artifact libModules,
@Nullable Artifact defaultCDS,
ImmutableList<CcInfo> hermeticStaticLibs) {
ImmutableList<CcInfo> hermeticStaticLibs,
int version) {
this.javaBaseInputs = javaBaseInputs;
this.javaHome = javaHome;
this.javaBinaryExecPath = javaBinaryExecPath;
Expand All @@ -145,6 +149,7 @@ private JavaRuntimeInfo(
this.libModules = libModules;
this.defaultCDS = defaultCDS;
this.hermeticStaticLibs = hermeticStaticLibs;
this.version = version;
}

/** All input artifacts in the javabase. */
Expand Down Expand Up @@ -232,6 +237,11 @@ public Depset starlarkJavaBaseInputs() {
return Depset.of(Artifact.class, javaBaseInputs());
}

@Override
public int version() {
return version;
}

@Override
public com.google.devtools.build.lib.packages.Provider getProvider() {
return PROVIDER;
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Expand Up @@ -18,6 +18,7 @@
import static com.google.devtools.build.lib.packages.BuildType.LABEL;
import static com.google.devtools.build.lib.packages.BuildType.LABEL_LIST;
import static com.google.devtools.build.lib.packages.BuildType.LICENSE;
import static com.google.devtools.build.lib.packages.Type.INTEGER;
import static com.google.devtools.build.lib.packages.Type.STRING;

import com.google.devtools.build.lib.analysis.BaseRuleClasses;
Expand Down Expand Up @@ -83,6 +84,10 @@ public RuleClass build(RuleClass.Builder builder, RuleDefinitionEnvironment env)
<!-- #END_BLAZE_RULE.ATTRIBUTE --> */
.add(attr("java_home", STRING))
.add(attr("output_licenses", LICENSE))
/* <!-- #BLAZE_RULE(java_runtime).ATTRIBUTE(version) -->
The major version of the Java runtime.
<!-- #END_BLAZE_RULE.ATTRIBUTE --> */
.add(attr("version", INTEGER))
.build();
}

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Original file line number Diff line number Diff line change
Expand Up @@ -104,4 +104,11 @@ public interface JavaRuntimeInfoApi extends StructApi {
doc = "Returns the JDK static libraries.",
structField = true)
Sequence<CcInfo> starlarkHermeticStaticLibs();

/** The Java version of the runtime. This may be 0 if the version is unknown. */
@StarlarkMethod(
name = "version",
doc = "The Java version of the runtime. This may be 0 if the version is unknown.",
structField = true)
int version();
}
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,8 @@ def _bazel_java_binary_impl(ctx):
)

if ctx.attr.use_testrunner:
if semantics.find_java_runtime_toolchain(ctx).version >= 17:
jvm_flags.append("-Djava.security.manager=allow");
test_class = ctx.attr.test_class if hasattr(ctx.attr, "test_class") else ""
if test_class == "":
test_class = helper.primary_class(ctx)
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2 changes: 1 addition & 1 deletion tools/jdk/BUILD
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ filegroup(
"default_java_toolchain.bzl",
"fail_rule.bzl",
"java_toolchain_alias.bzl",
"jdk.BUILD",
"jdk_build_file.bzl",
"local_java_repository.bzl",
"nosystemjdk/README",
"proguard_whitelister.py",
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1 change: 0 additions & 1 deletion tools/jdk/BUILD.tools
Original file line number Diff line number Diff line change
Expand Up @@ -195,7 +195,6 @@ alias(

exports_files([
"BUILD.java_tools",
"jdk.BUILD",
])

alias(
Expand Down
4 changes: 3 additions & 1 deletion tools/jdk/jdk.BUILD → tools/jdk/jdk_build_file.bzl
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
load("@rules_java//java:defs.bzl", "java_runtime")
JDK_BUILD_TEMPLATE = """load("@rules_java//java:defs.bzl", "java_runtime")
package(default_visibility = ["//visibility:public"])
Expand Down Expand Up @@ -67,4 +67,6 @@ java_runtime(
":jdk-lib",
":jre",
],
version = ___VERSION___,
)
"""
11 changes: 9 additions & 2 deletions tools/jdk/local_java_repository.bzl
Original file line number Diff line number Diff line change
Expand Up @@ -147,8 +147,13 @@ def _local_java_repository_impl(repository_ctx):

# Prepare BUILD file using "local_java_runtime" macro
build_file = ""
if repository_ctx.attr.build_file_content:
build_file = repository_ctx.attr.build_file_content
if repository_ctx.attr.build_file != None:
if build_file != "":
fail("build_file and build_file_content are exclusive")
build_file = repository_ctx.read(repository_ctx.path(repository_ctx.attr.build_file))
build_file = build_file.replace("___VERSION___", version if version else "0")

runtime_name = '"jdk"' if repository_ctx.attr.build_file else None
local_java_runtime_macro = """
Expand Down Expand Up @@ -201,10 +206,11 @@ _local_java_repository_rule = repository_rule(
"java_home": attr.string(),
"version": attr.string(),
"build_file": attr.label(),
"build_file_content": attr.string(),
},
)

def local_java_repository(name, java_home, version = "", build_file = None):
def local_java_repository(name, java_home, version = "", build_file = None, build_file_content = None):
"""Registers a runtime toolchain for local JDK and creates an unregistered compile toolchain.
Toolchain resolution is constrained with --java_runtime_version flag
Expand All @@ -220,7 +226,8 @@ def local_java_repository(name, java_home, version = "", build_file = None):
name: A unique name for this rule.
java_home: Location of the JDK imported.
build_file: optionally BUILD file template
build_file_content: optional BUILD file template as a string
version: optionally java version
"""
_local_java_repository_rule(name = name, java_home = java_home, version = version, build_file = build_file)
_local_java_repository_rule(name = name, java_home = java_home, version = version, build_file = build_file, build_file_content = build_file_content)
native.register_toolchains("@" + name + "//:runtime_toolchain_definition")
3 changes: 2 additions & 1 deletion tools/jdk/remote_java_repository.bzl
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ Rule remote_java_repository imports and registers JDK with the toolchain resolut
"""

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
load("@bazel_tools//tools/jdk:jdk_build_file.bzl", "JDK_BUILD_TEMPLATE")

def _toolchain_config_impl(ctx):
ctx.file("WORKSPACE", "workspace(name = \"{name}\")\n".format(name = ctx.name))
Expand Down Expand Up @@ -47,7 +48,7 @@ def remote_java_repository(name, version, target_compatible_with = None, prefix
"""
http_archive(
name = name,
build_file = "@bazel_tools//tools/jdk:jdk.BUILD",
build_file_content = JDK_BUILD_TEMPLATE.replace("___VERSION___", version),
**kwargs
)
_toolchain_config(
Expand Down

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