*
         * For Oracle/OpenJDK/Adoptium we define a repository per-version.
         */
        String repoName = REPO_NAME_PREFIX + jdk.getVendor() + "_" + jdk.getVersion();
        String repoUrl;
        String artifactPattern;

        if (jdk.getVendor().equals(VENDOR_ADOPTIUM)) {
            repoUrl = "https://api.adoptium.net/v3/binary/version/";
            if (jdk.getMajor().equals("8")) {

#This file is generated by updateDaemonJvm
toolchainVendor=ADOPTIUM

## Setting up your development environment

In order to make changes to Gradle, you'll need:

* [Adoptium JDK](https://adoptium.net/temurin/archive/?version=17) (Java Development Kit) **version 17**. Fixed version is required to use [remote cache](#remote-build-cache).

 * limitations under the License.
 */

package common

enum class JvmVendor(
    val displayName: String,
) {
    ORACLE("Oracle"),
    OPENJDK("Adoptium"),
    ZULU("Zulu"),

public class Jdk implements Buildable, Iterable<File> {

    private static final List<String> ALLOWED_ARCHITECTURES = List.of("aarch64", "x64");
    private static final List<String> ALLOWED_VENDORS = List.of("adoptium", "openjdk");
    private static final List<String> ALLOWED_PLATFORMS = List.of("darwin", "linux", "windows", "mac");

        if (vendor.equals(VENDOR_ADOPTIUM)) {
            final String module = isMac(platform) ? "mac" : platform;
            return "/jdk-" + version + "/" + module + "/${arch}/jdk/hotspot/normal/adoptium";
        } else if (vendor.equals(VENDOR_OPENJDK)) {
            final String effectivePlatform = isMac(platform) ? "osx" : platform;
            final boolean isOld = version.equals(OPENJDK_VERSION_OLD);

    private static final String SYSTEM_JDK_VENDOR = "openjdk";
    private static final String GRADLE_JDK_VERSION = "16.0.2+7";
    private static final String GRADLE_JDK_VENDOR = "adoptium";

    // all distributions used by distro tests. this is temporary until tests are per distribution
    private static final String EXAMPLE_PLUGIN_CONFIGURATION = "examplePlugin";

    const val RUN_BROKEN_CONFIGURATION_CACHE_DOCS_TESTS = "runBrokenConfigurationCacheDocsTests"

    internal
    val VENDOR_MAPPING = mapOf(
        "oracle" to JvmVendorSpec.ORACLE,
        "openjdk" to JvmVendorSpec.ADOPTIUM,
        "zulu" to JvmVendorSpec.AZUL
    )
}


fun Project.stringPropertyOrEmpty(projectPropertyName: String): String =
    stringPropertyOrNull(projectPropertyName) ?: ""

There have been discussions on embedding a Java runtime in the Gradle distribution.
This would allow users to run Gradle without having to install a Java runtime beforehand.
This capability could help increase Gradle adoption outside of the JVM ecosystem.

Gradle can be invoked in different ways:
* Through the [Gradle Wrapper](https://docs.gradle.org/8.8/userguide/gradle_wrapper.html)

Use `Objects.requireNonNull` statement or `Preconditions` rather than `assert` or `@SuppressWarning` annotation to suppress if possible.

For gradual adoption, enable checks project-by-project.
Do not rely on `@NullMarked` annotations.
Only enable checks for a project if all its dependencies have checks enabled, in order to avoid back-and-forth when refining the annotations.