* true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.toolchains.io.isStrict";

    /**
     * Reads the toolchains from the specified file.
     *
     * @param input The file to deserialize the toolchains from, must not be {@code null}.

    if (alreadyEncoded && (
        codePoint == '\t'.code || codePoint == '\n'.code ||
          codePoint == '\u000c'.code || codePoint == '\r'.code
      )
    ) {
      // Skip this character.
    } else if (codePoint == ' '.code && encodeSet === FORM_ENCODE_SET) {
      // Encode ' ' as '+'.
      writeUtf8("+")
    } else if (codePoint == '+'.code && plusIsSpace) {

/**
 * Testing utilities relating to garbage collection finalization.
 *
 * <p>Use this class to test code triggered by finalization, that is, one of the following
 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects
 *   <li>clearing weak references to unreachable referents

public class Phase implements java.io.Serializable {

    // --------------------------/
    // - Class/Member Variables -/
    // --------------------------/

    /**
     * The ID of this phase, e.g., <code>generate-sources</code>.
     */
    private String id;

    /**
     * Field executions.
     */
    private java.util.List<Execution> executions;

    /**
     * Configuration to pass to all goals run in this phase.

 * parameter whose declaration or type isn't annotated with an annotation with the simple name
 * {@code Nullable}, {@code CheckForNull}, {@code NullableType}, or {@code NullableDecl}.
 *
 * <p>The tested methods and constructors are invoked -- each time with one parameter being null and
 * the rest not null -- and the test fails if no expected exception is thrown. {@code
 * NullPointerTester} uses best effort to pick non-null default values for many common JDK and Guava

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - для проверки электронной почты.

Используется Starlette:

* <a href="https://www.python-httpx.org" target="_blank"><code>HTTPX</code></a> - Обязательно, если вы хотите использовать `TestClient`.

-   Once the tests pass, we now bring all the code into the internal code base,
    using a job called "copybara".

**5. Copy to Google Internal codebase and run internal CI**

-   Once the PR is in the Google codebase, we make sure it integrates well with
    its dependencies and the rest of the system.
-   Rarely, If the tests fail at this stage, we cannot merge the code.

   * {@code bytes[off + len - 1]} is the last.
   *
   * @param bytes a byte array
   * @param off the start offset in the array
   * @param len the number of bytes to write
   * @return this instance
   * @throws IndexOutOfBoundsException if {@code off < 0} or {@code off + len > bytes.length} or
   *     {@code len < 0}
   */
  @CanIgnoreReturnValue

    /**
     * Creates {@link ClRuntimeException}.
     *
     * @param messageCode message code
     */
    public ClRuntimeException(final String messageCode) {
        this(messageCode, new Object[0], null);
    }

    /**
     * Creates {@link ClRuntimeException}.
     *
     * @param messageCode message code
     * @param args arguments for messages
     */

  /** Creates a new instance that will read lines from the given {@code Readable} object. */
  public LineReader(Readable readable) {
    this.readable = checkNotNull(readable);
    this.reader = (readable instanceof Reader) ? (Reader) readable : null;
  }

  /**
   * Reads a line of text. A line is considered to be terminated by any one of a line feed ({@code
   * '\n'}), a carriage return ({@code '\r'}), or a carriage return followed immediately by a