threads[0].start();
        threads[1].start();

        // Wait for completion
        threads[0].join();
        threads[1].join();

        // Verify no exceptions occurred (the main goal is no ConcurrentModificationException)
        assertNull(exceptions[0], "Add thread threw exception");
        assertNull(exceptions[1], "Clear thread threw exception");
    }

    /**

        expect:
        (line =~ KillLeakingJavaProcesses.generateLeakingProcessKillPattern(projectDir)).find()
    }

    def "does not match worker process started by main build VM on Windows"() {

That way, you can edit the documentation/source files and see the changes live.

/// tip

Alternatively, you can perform the same steps that scripts does manually.

Go into the language directory, for the main docs in English it's at `docs/en/`:

```console
$ cd docs/en/
```

Then run `mkdocs` in that directory:

```console
$ mkdocs serve --dev-addr 127.0.0.1:8008
```

///

    public Builder<R, C, V> put(R rowKey, C columnKey, V value) {
      cells.add(cellOf(rowKey, columnKey, value));
      return this;
    }

    /**
     * Adds the given {@code cell} to the table, making it immutable if necessary. Duplicate key
     * pairs are not allowed and will cause {@link #build} to fail.
     */
    @CanIgnoreReturnValue

   *     such index exists.
   */
  public static int indexOf(long[] array, long target) {
    return indexOf(array, target, 0, array.length);
  }

  // TODO(kevinb): consider making this public
  private static int indexOf(long[] array, long target, int start, int end) {
    for (int i = start; i < end; i++) {
      if (array[i] == target) {
        return i;
      }
    }
    return -1;

 -----
 Introduction
 -----
 Hervé Boutemy
 -----
 2013-03-19
 -----

Maven Model Builder

 The effective model builder, with profile activation, inheritance, interpolation, ...

 The main component is <<<ModelBuilder>>>
 ({{{./apidocs/org/apache/maven/model/building/ModelBuilder.html}javadoc}},
 {{{./xref/org/apache/maven/model/building/ModelBuilder.html}source}}),
 with its <<<DefaultModelBuilder>>> implementation

      Iterator<? extends Iterator<? extends T>> inputs) {
    return new ConcatenatedIterator<>(inputs);
  }

  /** Concats a varargs array of iterators without making a defensive copy of the array. */
  static <T extends @Nullable Object> Iterator<T> concatNoDefensiveCopy(
      Iterator<? extends T>... inputs) {
    for (Iterator<? extends T> input : checkNotNull(inputs)) {

      Iterator<? extends Iterator<? extends T>> inputs) {
    return new ConcatenatedIterator<>(inputs);
  }

  /** Concats a varargs array of iterators without making a defensive copy of the array. */
  static <T extends @Nullable Object> Iterator<T> concatNoDefensiveCopy(
      Iterator<? extends T>... inputs) {
    for (Iterator<? extends T> input : checkNotNull(inputs)) {

            if (!"pre".equals(element)) {
                return false;
            }
            Element newElement = document.createElement("programlisting");
            //we're making an assumption that all <pre> elements contain java code
            //this should mostly be true :)
            //if it isn't true then the syntax highlighting won't spoil the view too much anyway

///

FastAPI will now:

* **Validate** the data making sure that the max length is 50 characters
* Show a **clear error** for the client when the data is not valid
* **Document** the parameter in the OpenAPI schema *path operation* (so it will show up in the **automatic docs UI**)