val dirPath = dir.toPath()
            Files.walk(dirPath).use { paths ->
                paths.filter { !it.toFile().isDirectory }
                    .limit(4)
                    .map { dirPath.relativize(it).toString() }
                    .collect(Collectors.toList())
            }
        }?.filter {
            it.value.isNotEmpty()
        } ?: emptyMap()

    /**

  }

  @Override
  public String pattern() {
    return pattern.pattern();
  }

  @Override
  public int flags() {
    return pattern.flags();
  }

  @Override
  public String toString() {
    return pattern.toString();
  }

  private static final class JdkMatcher extends CommonMatcher {
    final Matcher matcher;

    JdkMatcher(Matcher matcher) {
      this.matcher = Preconditions.checkNotNull(matcher);

    for (frameFlag in frameFlags) {
      for (prefixFlag in prefixFlags) {
        FLAGS[prefixFlag or frameFlag] = FLAGS[prefixFlag] + '|'.toString() + FLAGS[frameFlag]
        FLAGS[prefixFlag or frameFlag or FLAG_PADDED] =
          FLAGS[prefixFlag] + '|'.toString() + FLAGS[frameFlag] + "|PADDED"
      }
    }

    for (i in FLAGS.indices) { // Fill in holes with binary representation.

            }
            changes?.forEach { assertContains(it.toString()) }
            assertContains(cleanupHint)
        }
    }

    private
    fun StringWriter.assertContains(text: String) {
        Assertions.assertTrue(toString().contains(text)) {
            "Did not find expected error message in $this"
        }
    }

    protected

    Preconditions.checkPositionIndexes(fromIndex, toIndex, 1);
    return (fromIndex == toIndex) ? ImmutableList.of() : this;
  }

  @Override
  public String toString() {
    return '[' + element.toString() + ']';
  }

  @Override
  boolean isPartialView() {
    return false;
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @Override

    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        // handled special in SmbTransport.doRecv()
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComReadAndXResponse[" + super.toString() + ",dataCompactionMode=" + dataCompactionMode + ",dataLength=" + dataLength
                + ",dataOffset=" + dataOffset + "]");
    }

    }
  }

  /** toString returns current value */
  public void testToString() {
    AtomicDoubleArray aa = new AtomicDoubleArray(VALUES);
    assertThat(aa.toString()).isEqualTo(Arrays.toString(VALUES));
    assertThat(new AtomicDoubleArray(0).toString()).isEqualTo("[]");
    assertThat(new AtomicDoubleArray(new double[0]).toString()).isEqualTo("[]");
  }

        }

        children[index % nChildren] = kid;
    }

    // ------------------------------------------------------------------
    @Override
    public String toString() {
        return md == null ? "no metadata" : md.toString();
    }

    // ------------------------------------------------------------------
    public String graphHash() throws MetadataResolutionException {
        if (md == null) {

        return 8;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComWriteAndXResponse[" + super.toString() + ",count=" + count + "]");
    }

        return 0;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComFindClose2[" + super.toString() + ",sid=" + sid + "]");
    }