*
 * <p>Tasks submitted to {@link #execute(Runnable)} are executed in FIFO order.
 *
 * <p>The execution of tasks is done by one thread as long as there are tasks left in the queue.
 * When a task is {@linkplain Thread#interrupt interrupted}, execution of subsequent tasks
 * continues. See {@link QueueWorker#workOnQueue} for details.
 *

    /**
     * Do not instantiate.
     */
    protected ThreadUtil() {
    }

    /**
     * Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds.
     *
     * @param millis
     *            the length of time to sleep in milliseconds
     * @throws InterruptedRuntimeException

  }

  /** Used by [Call.execute] to signal completion. */
  internal fun finished(call: RealCall) {
    promoteAndExecute(finishedCall = call)
  }

  /** Returns a snapshot of the calls currently awaiting execution. */
  @Synchronized
  fun queuedCalls(): List<Call> = readyAsyncCalls.map { it.call }.unmodifiable()

  /** Returns a snapshot of the calls currently being executed. */
  @Synchronized

        System.out.printf("  Avg tree operation time: %.2f ns%n", avgOpTimeNs);

        // Verify thread safety and performance
        assertTrue(exceptions.isEmpty(), "No exceptions should occur with thread-safe collections: " + exceptions);
        assertEquals(threadCount * operationsPerThread, treeOperations.get());
        assertTrue(avgOpTimeNs < 100000, "Tree operations should be reasonable with CopyOnWriteArrayList");

import java.util.HashSet;
import java.util.List;

import org.apache.maven.api.MonotonicClock;
import org.apache.maven.execution.BuildSuccess;
import org.apache.maven.execution.ExecutionEvent;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.execution.ProjectExecutionEvent;
import org.apache.maven.execution.ProjectExecutionListener;
import org.apache.maven.internal.transformation.TransformerManager;

     * for this session, the result will be cached and subsequent identical requests will return the cached
     * value without re-executing the supplier.
     * <p>
     * The caching behavior is determined by the cache retention specified in the request's metadata.
     * If an error occurs during execution, it will be cached and re-thrown for subsequent identical requests.
     *
     * @param <REQ> The request type

import org.apache.maven.api.Project;
import org.apache.maven.api.Service;
import org.apache.maven.api.services.MavenException;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.execution.MojoExecutionEvent;
import org.apache.maven.execution.MojoExecutionListener;
import org.apache.maven.execution.scope.internal.MojoExecutionScope;
import org.apache.maven.internal.impl.DefaultLog;
import org.apache.maven.internal.impl.DefaultMojoExecution;

        return this;
    }

    @Override
    public List<Throwable> getExceptions() {
        return exceptions;
    }

    @Override
    public MavenExecutionResult addException(Throwable t) {
        exceptions.add(t);

        return this;
    }

    @Override
    public boolean hasExceptions() {
        return !getExceptions().isEmpty();
    }

                        successCount.incrementAndGet();
                    }
                } catch (Exception e) {
                    synchronized (exceptions) {
                        exceptions.add(e);
                    }
                } finally {
                    endLatch.countDown();
                }
            });
        }

        // Start all threads

   * tasks. Second, the returned list will always be empty, as any submitted task is considered to
   * have started execution. This applies also to tasks given to {@code invokeAll} or {@code
   * invokeAny} which are pending serial execution, even the subset of the tasks that have not yet
   * started execution. It is unclear from the {@code ExecutorService} specification if these should