NbGradleNbmPlugin.java

package org.netbeans.gradle.build;

import java.util.Collections;
import org.gradle.api.Action;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.tasks.bundling.Jar;
import org.gradle.api.tasks.compile.JavaCompile;

public final class NbGradleNbmPlugin implements Plugin<Project> {
    @Override
    public void apply(final Project project) {
        project.apply(Collections.singletonMap("plugin", "cz.kubacki.nbm"));

        final Jar jar = (Jar)project.getTasks().findByName("jar");
        TaskConfigurations.lazilyConfiguredTask(jar, new Action<Task>() {
            @Override
            public void execute(Task task) {
                jar.getManifest().attributes(Collections.singletonMap("Build-Jdk", getCompilerVersion(project)));
            }
        });
    }

    private static String getCompilerVersion(Project project) {
        String result = CompilerUtils.tryGetCompilerVersion((JavaCompile)project.getTasks().findByName("compileJava"));
        return result != null ? result : "unknown";
    }
}