(Class<TestEnum>) Class.forName(TestEnum.class.getName(), false, shadowLoader);
    assertThat(shadowTestEnum).isNotEqualTo(TestEnum.class);
    // We can't write Set<TestEnum> because that is a Set of the TestEnum from the original
    // ClassLoader.
    Set<Object> shadowConstants = new HashSet<>();
    for (TestEnum constant : TestEnum.values()) {
      Optional<TestEnum> result = Enums.getIfPresent(shadowTestEnum, constant.name());

        // Inject the ShareInfoCtr1 using reflection
        Field infoField = srvsvc.ShareEnumAll.class.getDeclaredField("info");
        infoField.setAccessible(true);
        infoField.set(msrpcShareEnum, shareInfoCtr1);

        // Test getEntries method
        FileEntry[] entries = msrpcShareEnum.getEntries();

        assertNotNull(entries);
        assertEquals(2, entries.length);

  // This is needed when resolving types against a context with wildcards
  // For example:
  // class Holder<T> {
  //   void set(T data) {...}
  // }
  // Holder<List<?>> should *not* resolve the set() method to set(List<?> data).
  // Instead, it should create a capture of the wildcard so that set() rejects any List<T>.
  private static class WildcardCapturer {

    static final WildcardCapturer INSTANCE = new WildcardCapturer();

    List<Entry<K, V>> entries = copyToList(multimap().entries());

    for (Entry<K, V> entry : entries) {
      resetContainer();
      K k = entry.getKey();
      V v = entry.getValue();

      Set<V> values = multimap().get(k);
      Set<V> expectedValues = copyToSet(values);

      assertFalse(multimap().put(k, v));
      assertEquals(expectedValues, values);
      assertGet(k, expectedValues);
    }
  }

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link Primitives}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullUnmarked

                && StringUtils.compare(attrValue, other.attrValue) == 0;
    }

    /**
     * Sets the ID attribute value that this pruned tag should match.
     *
     * @param id the ID attribute value to match
     */
    public void setId(final String id) {
        this.id = id;
    }

    /**
     * Sets the CSS class name that this pruned tag should match.
     *
     * @param css the CSS class name to match

        // Then
        assertNotNull(msrpcSamrOpenAlias, "MsrpcSamrOpenAlias object should not be null");

        // Verify that ptype and flags are set correctly using reflection
        try {
            java.lang.reflect.Field ptypeField = jcifs.dcerpc.DcerpcMessage.class.getDeclaredField("ptype");
            ptypeField.setAccessible(true);

        }
        HashSet<RemoteRepository> set = new HashSet<>(repositories);
        if (repositories.size() != set.size()) {
            throw new IllegalArgumentException(
                    "Repository list contains duplicate entries. Each repository must be unique based on its ID and URL. "
                            + "Found " + repositories.size() + " repositories but only " + set.size()
                            + " unique entries.");

对具有子类型的模型属性也使用相同的标准语法。

因此，在我们的示例中，我们可以将 `tags` 明确地指定为一个「字符串列表」：

{* ../../docs_src/body_nested_models/tutorial002_py310.py hl[12] *}

## Set 类型

但是随后我们考虑了一下，意识到标签不应该重复，它们很大可能会是唯一的字符串。

Python 具有一种特殊的数据类型来保存一组唯一的元素，即 `set`。

然后我们可以导入 `Set` 并将 `tag` 声明为一个由 `str` 组成的 `set`：

{* ../../docs_src/body_nested_models/tutorial003_py310.py hl[12] *}

这样，即使你收到带有重复数据的请求，这些数据也会被转换为一组唯一项。

而且，每当你输出该数据时，即使源数据有重复，它们也将作为一组唯一项输出。

                final long lastValue = lastTime.get();
                if (lastValue == 0) {
                    // First access to this host - no delay needed
                    // Set current time to allow proper delay for next access
                    lastTime.set(SystemUtil.currentTimeMillis());
                    return;
                }

                long currentTime = SystemUtil.currentTimeMillis();