# under the License.

# -----------------------------------------------------------------------------
# Apache Maven Debug Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.
#   MAVEN_SKIP_RC       (Optional) Flag to disable loading of mavenrc files.

# under the License.

# -----------------------------------------------------------------------------
# Apache Maven YourKit Profiler Startup Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME       Must point at your Java Development Kit installation.
#   MAVEN_OPTS      (Optional) Java runtime options used when Maven is executed.
#   MAVEN_SKIP_RC   (Optional) Flag to disable loading of mavenrc files.

# under the License.

# -----------------------------------------------------------------------------
# Apache Maven Startup Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME       (Optional) Points to a Java installation.
#   MAVEN_ARGS      (Optional) Arguments passed to Maven before CLI arguments.
#   MAVEN_OPTS      (Optional) Java runtime options used when Maven is executed.

            executable = 'cmd.exe'
        } else {
            executable = "${workingDir}/${executable}"
        }
        builder.environment("JAVA_HOME", System.getProperty("java.home"))
        // // https://github.com/gradle/dotcom/issues/6071
        builder.environment("JAVA_OPTS", "")
        return builder.build()
    }

    ExecResult run() {

 */
@ServiceScope(Scope.Global.class)
public interface DaemonContext {

    /**
     * The unique identifier for this daemon.
     */
    String getUid();

    /**
     * The JAVA_HOME in use, as the canonical file.
     */
    File getJavaHome();

    JavaLanguageVersion getJavaVersion();

    /**

    static String probeVersion(File home) {
        def mvn = findMvnExecutable(home)
        def env = System.getenv().findAll { it.key != "M2" && it.key != "M2_HOME" }.collect { "${it.key}=${it.value}" }
        env += "JAVA_HOME=${System.getProperty("java.home")}"
        def process = [mvn.absolutePath, "--version"].execute(env, home)
        def exitValue = process.waitFor()
        if (exitValue != 0) {

     * @since 6.8
     */
    @Internal
    String getVendor();

    /**
     * The path to installation this tool belongs to.
     * <p>
     * This value matches what would be the content of {@code JAVA_HOME} for the given installation.
     *
     * @return the installation path
     */
    @Internal
    Directory getInstallationPath();

    /**
     * Returns true if this installation corresponds to the build JVM.

    Unix-based operating systems (Linux, Solaris and Mac OS X)
      export PATH=/usr/local/apache-maven-4.x.y/bin:$PATH
    Windows
      set PATH="c:\program files\apache-maven-4.x.y\bin";%PATH%

  4) Make sure JAVA_HOME is set to the location of your JDK

  5) Run "mvn --version" to verify that it is correctly installed.

  For complete documentation, see https://maven.apache.org/download.html#Installation

  Licensing
  ---------

        stage('Build / Unit Test') {
            String jdkName = jenkinsEnv.jdkFromVersion(buildOs, buildJdk)
            String mvnName = jenkinsEnv.mvnFromVersion(buildOs, buildMvn)
            try {
                withEnv(["JAVA_HOME=${ tool "$jdkName" }",
                         "PATH+MAVEN=${ tool "$jdkName" }/bin:${tool "$mvnName"}/bin",
                         "MAVEN_OPTS=-Xms2g -Xmx4g -Djava.awt.headless=true"]) {                   

        println("Working directory: " + execHandle.getDirectory());
        println("Environment vars:");
        println(format("    JAVA_HOME: %s", environment.get("JAVA_HOME")));
        println(format("    GRADLE_HOME: %s", environment.get("GRADLE_HOME")));
        println(format("    GRADLE_USER_HOME: %s", environment.get("GRADLE_USER_HOME")));