private final Executor executor;

    public DefaultArtifactResolver() {
        int threads = Integer.getInteger("maven.artifact.threads", 5);
        if (threads <= 1) {
            executor = Runnable::run;
        } else {
            executor = new ThreadPoolExecutor(
                    threads, threads, 3, TimeUnit.SECONDS, new LinkedBlockingQueue<>(), new DaemonThreadCreator());
        }
    }

                    LOGGER.warn(
                            "File '{}' is more recent than the packaged artifact for '{}', "
                                    + "please run a full `mvn package` build",
                            relativizeOutputFile(outputFile),
                            project.getArtifactId());
                    return true;
                }
            }

org.codehaus.plexus.util.cli; public synchronized class StreamFeeder extends Thread { private java.io.InputStream input; private java.io.OutputStream output; private boolean done; public void StreamFeeder(java.io.InputStream, java.io.OutputStream); public void run(); public void close(); public boolean isDone(); private void feed() throws java.io.IOException; } org/codehaus/plexus/util/cli/StreamPumper.class package org.codehaus.plexus.util.cli; public synchronized class StreamPumper extends Thread { private...

          <description>
            This element includes the specification of report plugins to use
            to generate the reports on the Maven-generated site.
            These reports will be run when a user executes {@code mvn site}.
            All the reports will be included in the navigation bar for browsing.
          </description>
          <association>
            <type>Reporting</type>

              <exclude>src/assembly/shared/mvnvalidate</exclude>
              <exclude>src/assembly/shared/mvnvalidate.cmd</exclude>
              <exclude>src/assembly/shared/run</exclude>
              <exclude>src/assembly/shared/run.cmd</exclude>
            </excludes>
          </configuration>
        </plugin>
      </plugins>
    </pluginManagement>
    <plugins>
      <plugin>

                    String jdkHome = request.getSystemProperties().get("java.home") + File.separator + "..";
                    if (systemPath.startsWith(jdkHome)) {
                        msg += ". Please verify that you run Maven using a JDK and not just a JRE.";
                    }
                    addViolation(
                            problems,
                            Severity.WARNING,