* @since 15.0
 */
@GwtIncompatible // java.lang.System#getProperty
public enum StandardSystemProperty {

  /** Java Runtime Environment version. */
  JAVA_VERSION("java.version"),

  /** Java Runtime Environment vendor. */
  JAVA_VENDOR("java.vendor"),

  /** Java vendor URL. */
  JAVA_VENDOR_URL("java.vendor.url"),

  /** Java installation directory. */
  JAVA_HOME("java.home"),

/**
 * Represents a Java toolchain in the Maven build system.
 *
 * <p>A Java toolchain is a specific type of toolchain that provides access
 * to Java development tools, such as the Java compiler and Java runtime
 * environment. This interface allows users to define and configure
 * Java-related toolchains that can be utilized during the build process
 * in Maven.</p>
 *

import static com.google.common.base.Preconditions.checkNotNull;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;

/**
 * Static utilities relating to Java reflection.
 *
 * @since 12.0
 */
public final class Reflection {

  /**
   * Returns the package name of {@code clazz} according to the Java Language Specification (section

import org.gradle.api.GradleException;

import java.util.List;
import java.util.Optional;

public class JavaUtil {

    /** A convenience method for getting java home for a version of java and requiring that version for the given task to execute */
    public static String getJavaHome(final int version) {
        List<JavaHome> javaHomes = BuildParams.getJavaVersions();

import org.gradle.util.GradleVersion;

import javax.inject.Inject;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.util.Arrays;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.errorprone.annotations.DoNotMock;
import java.io.Serializable;
import java.util.Iterator;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An immutable object that may contain a non-null reference to another object. Each instance of

        assertEquals(1, results.length);
        assertEquals("Java Programming", results[0]);

        results = relatedContentHelper.getRelatedContents("JAVA");
        assertEquals(1, results.length);
        assertEquals("Java Programming", results[0]);

        results = relatedContentHelper.getRelatedContents("Java");
        assertEquals(1, results.length);

 * limitations under the License.
 */

import java.io.*;
import java.nio.charset.*;
import java.nio.file.*;
import java.util.*;

/**
 * Verifies that the given "remote project ref" properties exist in {@code gradle.properties}.
 *
 * Usage (Java 11+ single-file source execution):
 *   java .teamcity/scripts/CheckRemoteProjectRef.java <propertyKey1> <propertyKey2> ...
 *
 * The check currently enforces:

        }
        return null;
    }

    /**
     * @param project The project to look for test Java resources.
     * @return An Optional that contains the Java test SourceSet if it exists.
     */
    public static Optional<SourceSet> getJavaTestSourceSet(Project project) {
        return project.getExtensions().findByName("java") == null
            ? Optional.empty()

    @Test
    public void test_filterJvmOptions_versionRanges() {
        System.setProperty("java.version", "15.0.1");

        String[] args = new String[] { "8-:-Xms512m", // From Java 8 onwards
                "11-:-Xmx2g", // From Java 11 onwards
                "17-:-XX:+UseG1GC", // From Java 17 onwards
                "21-:-XX:+UseZGC" // From Java 21 onwards
        };

        String[] result = JvmUtil.filterJvmOptions(args);