public final E[] elements;
    public final E duplicate;

    private ArrayWithDuplicate(E[] elements, E duplicate) {
      this.elements = elements;
      this.duplicate = duplicate;
    }
  }

  /**
   * @return an array of the proper size with a duplicate element. The size must be at least three.
   */

        SimpleProblemCollector result = validateRaw("duplicate-plugin.xml");

        assertViolations(result, 0, 0, 4);

        assertTrue(result.getWarnings().get(0).contains("duplicate declaration of plugin test:duplicate"));
        assertTrue(result.getWarnings().get(1).contains("duplicate declaration of plugin test:managed-duplicate"));
        assertTrue(result.getWarnings().get(2).contains("duplicate declaration of plugin profile:duplicate"));

import org.codelibs.fess.app.web.admin.duplicatehost.EditForm;

/**
 * Request body class for duplicate host edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for duplicate host management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */

    `legacy_parse_example` (same for related functions).
*   New `Variable`s are not added to the same collection several times even if a
    list with duplicates is passed to the constructor.
*   The Python API will now properly set the `list` member of `AttrValue` in
    constructed `GraphDef` messages for empty lists. The serialization of some

	return fmt.Sprintf("invalid filter value '%v'", err.FilterValue)
}

// ErrDuplicateEventName - duplicate event name error.
type ErrDuplicateEventName struct {
	EventName Name
}

func (err ErrDuplicateEventName) Error() string {
	return fmt.Sprintf("duplicate event name '%v' found", err.EventName)
}

// ErrUnsupportedConfiguration - unsupported configuration error.

     * and will cause {@link #build} to fail.
     */
    @CanIgnoreReturnValue
    public <T extends B> Builder<B> put(Class<T> key, T value) {
      mapBuilder.put(key, value);
      return this;
    }

    /**
     * Associates all of {@code map's} keys and values in the built map. Duplicate keys are not

                            problems,
                            Severity.WARNING,
                            "servers.server.id",
                            null,
                            "must be unique but found duplicate server with id " + server.getId());
                }
            }
        }

        List<Mirror> mirrors = settings.getMirrors();

        if (mirrors != null) {
            for (Mirror mirror : mirrors) {

type And struct {
	XMLName xml.Name `xml:"And" json:"And"`
	Prefix  string   `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
	Tags    []Tag    `xml:"Tag,omitempty" json:"Tag,omitempty"`
}

var errDuplicateTagKey = Errorf("Duplicate Tag Keys are not allowed")

// isEmpty returns true if Tags field is null
func (a And) isEmpty() bool {
	return len(a.Tags) == 0 && a.Prefix == ""
}

// Validate - validates the And field

     * and will cause {@link #build} to fail.
     */
    @CanIgnoreReturnValue
    public <T extends B> Builder<B> put(Class<T> key, T value) {
      mapBuilder.put(key, value);
      return this;
    }

    /**
     * Associates all of {@code map's} keys and values in the built map. Duplicate keys are not

            .suppressing(SetCreationTester.class.getMethods())
            // BiMap.entrySet() duplicate-handling behavior is too confusing for SetCreationTester
            .withSetUp(parentBuilder.getSetUp())
            .withTearDown(parentBuilder.getTearDown())
            .createTestSuite());
    /*
     * TODO(cpovirk): the Map tests duplicate most of this effort by using a