jdk-24/langtools/test/tools/sjavac/ParallelCompilations.java

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/*
 * @test
 * @summary Test to check that -j option works with more than one value
 * @bug 8071629
 * @author sogoel
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.file
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.sjavac
 * @build Wrapper ToolBox
 * @run main Wrapper ParallelCompilations
 */

import java.io.*;
import java.nio.file.*;
import com.sun.tools.sjavac.Main;

class ParallelCompilations extends SJavacTester {
  public static void main(String[] args) throws Exception {
    new ParallelCompilations().run();
  }

  public void run() throws Exception {
    ToolBox tb = new ToolBox();
    final String SERVER_ARG = "--server:"
            + "portfile=testportfile,"
            + "background=false";

    // Generate 10 files
    for (int i = 0; i < 10; i++) {
      String fileName = "Test" + i;
      String content = "package foo"+ i + ";\n" +
                       "public class "+ fileName + "{\n" +
                       "  public static void main(String[] args) {}\n" +
                       "\n}";
      Path srcDir = Paths.get("src");
      tb.writeJavaFiles(srcDir,content);
    }
    //Method will throw an exception if compilation fails
    compile("src", "-d", "classes", "-j", "10", SERVER_ARG, "--log=debug");
  }
}