* replaces the allowed ASCII whitespace characters with themselves and to set the minimum safe
     * character to 0x20. However this would slow down the escaping of simple strings that contain
     * \t, \n, or \r.
     */
    for (char c = MIN_ASCII_CONTROL_CHAR; c <= MAX_ASCII_CONTROL_CHAR; c++) {
      if (c != '\t' && c != '\n' && c != '\r') {
        builder.addEscape(c, "\uFFFD");
      }
    }

        String result = response.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.contains("TransWaitNamedPipeResponse"));
        // Verify that parent's toString is called (should contain standard fields)
        assertTrue(result.length() > "TransWaitNamedPipeResponse[]".length());
    }

    @Test
    @DisplayName("Multiple instances should be independent")

     * Otherwise it is necessary to manually prepare a comprehensive set of trusted roots.
     *
     * If the host platform is compromised or misconfigured this may contain untrustworthy root
     * certificates. Applications that connect to a known set of servers may be able to mitigate
     * this problem with [certificate pinning][CertificatePinner].
     */

      @Override
      public Iterable<T> children(T root) {
        return nodeToChildrenFunction.apply(root);
      }
    };
  }

  /** Returns the children of the specified node. Must not contain null. */
  public abstract Iterable<T> children(T root);

  /**
   * Returns an unmodifiable iterable over the nodes in a tree structure, using pre-order traversal.

3.x, null would yield a username or password of "null".

#### HttpUrl.queryParameterValues()

The return type of `HttpUrl.queryParameterValues()` is `List<String?>`. Lists that may contain null
are uncommon and Kotlin callers may have incorrectly assigned the result to `List<String>`.


Code Cleanup
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    asCharSink(to, charset, FileWriteMode.APPEND).write(from);
  }

  /**
   * Returns true if the given files exist, are not directories, and contain the same bytes.
   *
   * @throws IOException if an I/O error occurs
   */
  public static boolean equal(File file1, File file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);

      for (int i = WARMUP_MIN; i < WARMUP_MAX; i++) {
        Object key = warmed.get(i - WARMUP_MIN).getKey();
        assertTrue(keys.contains(key));
        assertTrue(keys.remove(key));
        assertFalse(keys.remove(key));
        assertFalse(keys.contains(key));
      }
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

  public void testValues_populated() {

   * URL paths, they are considered by the specification to be separators between "path segments."
   * This implies that, if you wish for your path to contain slashes, you must escape each segment
   * separately and then join them.
   *
   * <p>When escaping a String, the following rules apply:
   *
   * <ul>

// forces us to be a more liberal.
// Thus, we only reject all keys with NUL, and only reject NULs in values
// for the PAX version of the USTAR string fields.
// The key must not contain an '=' character.
func validPAXRecord(k, v string) bool {
	if k == "" || strings.Contains(k, "=") {
		return false
	}
	switch k {
	case paxPath, paxLinkpath, paxUname, paxGname:
		return !hasNUL(v)
	default:
		return !hasNUL(k)
	}

                  <fileset dir="${project.build.directory}/guava-sources">
                    <contains text="@GwtCompatible"/>
                  </fileset>
                </copy>
                <!-- The following don't contain @GwtCompatible for dependency reasons. -->
                <copy toDir="${project.build.directory}/guava-gwt-sources">