if (parent == null) {
      /*
       * The given directory is a filesystem root. All zero of its ancestors exist. This doesn't
       * mean that the root itself exists -- consider x:\ on a Windows machine without such a drive
       * -- or even that the caller can create it, but this method makes no such guarantees even for
       * non-root files.
       */
      return;
    }
    parent.mkdirs();

      connectionPool.evictAll()
      if (connectionPool.connectionCount() > 0) {
        // Minimise test flakiness due to possible race conditions with connections closing.
        // Some number of tests will report here, but not fail due to this delay.
        println("Delaying to avoid flakes")
        Thread.sleep(500L)
        println("After delay: " + connectionPool.connectionCount())
      }

          if (nanoTime >= waitUntil) return@withLock null
          val editCountBefore = editCount
          yieldUntil { nanoTime >= waitUntil || editCount > editCountBefore }
        }
        // TODO report compiler bug
        TODO("Can't get here")
      }
    }

    override fun put(element: T) {
      taskRunner.withLock {
        delegate.put(element)
        editCount++
      }
    }

        PluginPrefixResult result = resolveFromRepository(request, candidates);

        // If we haven't been able to resolve the plugin from the repository,
        // as a last resort, we go through all declared plugins, load them
        // one by one, and try to find a matching prefix.
        if (result == null && build != null) {
            result = resolveFromProject(request, build.getPlugins());

		StorageCurrentTaskLimit  int `xml:"StorageCurrentTaskLimit,omitempty"`
		KBBlockSize              int `xml:"KbBlockSize"`
	} `xml:"SystemRecommendations"`
}

// This optional functionality allows vendors to report space information to Veeam products, and Veeam will make placement
// decisions based on this information. For example, Veeam Backup & Replication has a Scale-out-Backup-Repository feature where

 */
@GwtCompatible
final class Platform {

  /** Format the template with args, only supports the placeholder {@code %s}. */
  static String format(String template, Object... args) {
    return String.format(Locale.ROOT, template, args);
  }

  /** See {@link ListListIteratorTester} */
  static int listListIteratorTesterNumIterations() {
    return 4;
  }

  /** See {@link CollectionIteratorTester} */

	err := tw.Flush()
	for i := 0; i < 2 && err == nil; i++ {
		_, err = tw.w.Write(zeroBlock[:])
	}

	// Ensure all future actions are invalid.
	tw.err = ErrWriteAfterClose
	return err // Report IO errors
}

// regFileWriter is a fileWriter for writing data to a regular file entry.
type regFileWriter struct {
	w  io.Writer // Underlying Writer
	nb int64     // Number of remaining bytes to write
}

import java.nio.file.Paths;
import java.util.Collections;

import org.apache.maven.execution.DefaultMavenExecutionRequest;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.root.RootLocator;
import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.junit.jupiter.api.Test;

    Path getTopDirectory();

    /**
     * Sets the root directory of the project.
     *
     * @since 4.0.0
     */
    MavenExecutionRequest setRootDirectory(Path rootDirectory);

    /**
     * Gets the root directory of the top project, which is the parent directory containing the {@code .mvn}
     * directory or a {@code pom.xml} file with the {@code root="true"} attribute.

                // path is already absolute, we're done
            } else if (path.getPath().startsWith(File.separator)) {
                // drive-relative Windows path, don't align with base dir but with drive root
                result = path.getAbsoluteFile();
            } else {
                // an ordinary relative path, align with base dir