*/
    <T> T withEmptyBuild(Function<? super SettingsInternal, T> action);

    /**
     * Schedules the work graph for the tasks specified in the {@link org.gradle.StartParameter} associated with the build, runs the scheduled work and finishes up the build.
     * When this method returns, all user code will have completed, including 'build finished' hooks.
     *

   * is also performed for calls to {@link Object#equals}, {@link Object#hashCode}, and {@link
   * Object#toString}.
   *
   * <p>If the target method call finishes before the limit is reached, the return value or
   * exception is propagated to the caller exactly as-is. If, on the other hand, the time limit is

package org.gradle.internal.work

import org.gradle.integtests.fixtures.AbstractIntegrationSpec

class ProjectLockStatisticsIntegrationTest extends AbstractIntegrationSpec {
    def "displays project lock statistics after build finishes"() {
        createDirs("child")
        settingsFile << """
            include ':child'
        """
        buildFile << """
            apply plugin: "java"

            task wait {

 * limitations under the License.
 */

package org.gradle.operations.execution;

import javax.annotation.Nullable;

/**
 * Fired when a deferred work execution finishes.
 *
 * @since 8.7
 */
public interface ExecuteDeferredWorkProgressDetails {

    /**
     * Type of work being executed.
     * <p>
     * @since 8.7

    /**
     * Visit variants of the component.
     */
    void visitComponentVariants(List<ResolvedVariantResult> allVariants);

    /**
     * Finishes visiting a component.
     */
    void endVisitComponent();

     * task execution and other work, so event handling does not block task execution. This means that a task finish event is delivered to the listener some time "soon" after the task
     * has completed. The events contain timestamps to allow you collect timing information.
     * </p>
     *
     * <p>The listener is automatically unsubscribed when the build finishes.</p>
     *

    /**
     * Returns the number of byte written since {@link #start(long)} was called.
     */
    public long getBytesWritten() {
        return countingOutputStream.getCount();
    }

    /**
     * Finishes writing, flushing and resetting any buffered state
     */
    public void done() throws IOException {
        countingOutputStream.flush();
        countingOutputStream = null;
    }

     *
     * @param failure Can be null, in which case this method does nothing.
     */
    void failed(@Nullable Throwable failure);

    /**
     * Finishes the build operation which should only be done once.
     */
    void setResult(@Nullable Object result);

    /**
     * Record a status or outcome for given build operation.
     *

    }

    /**
     * Returns the number of bytes read since {@link #start(long)} was called.
     */
    public long getBytesRead() {
        return countingInputStream.getCount();
    }

    /**
     * Finishes reading, resetting any buffered state.
     */
    public void done() {
        countingInputStream = null;
    }

    private static class ResettableBufferedInputStream extends BufferedInputStream {

    /**
     * Updates the VFS and the watchers before the build finishes.
     *
     * For example, this removes everything from the root which can't be kept after the current build finished.
     * This is anything which is not within a watchable hierarchy or in a cache directory.
     *