set conventions in a plugin (2). This keeps the underlying object "dumb", so it can be reused in multiple contexts and doesn't contain any special information about how conventions are calculated or what they could be.  In the wild, we've seen some objects set conventions in the object's constructor (3), but this can lead to unexpected assumptions or coupling between plugins.

For external plugins, it's difficult for an object to be used outside the application of a plugin, so following...

		t.Errorf("Open err:%v", err)
	}

	type Object1 struct{}
	type Object2 struct {
		Field1 string
	}
	type Object3 struct {
		Field2 string
	}
	db.Migrator().DropTable("objects")

	err = db.Table("objects").AutoMigrate(&Object1{})
	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}

	err = db.Table("objects").AutoMigrate(&Object2{})
	if err != nil {

        sourcesPath.attributes(a -> {
            a.attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.class, Usage.JAVA_RUNTIME));
            a.attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.class, Category.DOCUMENTATION));
            a.attribute(DocsType.DOCS_TYPE_ATTRIBUTE, objects.named(DocsType.class, "gradle-source-folders"));
        });
        sourcesPath.setCanBeConsumed(false);

   * accomplished with {@link Optional#or(Object) first.or(second)}. That approach also allows for
   * lazy evaluation of the fallback instance, using {@link Optional#or(Supplier)
   * first.or(supplier)}.
   *
   * <p><b>Java 9 users:</b> use {@link Objects#requireNonNullElse} instead. For lazy evaluation of
   * the fallback, use {@link Objects#requireNonNullElseGet Objects.requireNonNullElseGet(first, ()
   * -> second)}}.
   *

   * accomplished with {@link Optional#or(Object) first.or(second)}. That approach also allows for
   * lazy evaluation of the fallback instance, using {@link Optional#or(Supplier)
   * first.or(supplier)}.
   *
   * <p><b>Java 9 users:</b> use {@link Objects#requireNonNullElse} instead. For lazy evaluation of
   * the fallback, use {@link Objects#requireNonNullElseGet Objects.requireNonNullElseGet(first, ()
   * -> second)}}.
   *

        V1 extends @Nullable Object,
        V2 extends @Nullable Object,
        V3 extends @Nullable Object,
        V4 extends @Nullable Object,
        V5 extends @Nullable Object,
        U extends @Nullable Object> {
      /**
       * Applies this function to five inputs, or throws an exception if unable to do so.
       *

    Set<Object> observed = Sets.newIdentityHashSet(); // for the sake of weakly referenced locks.
    // this gets the stripes with #getAt(index)
    for (int i = 0; i < striped.size(); i++) {
      Object object = striped.getAt(i);
      assertThat(object).isNotNull();
      assertThat(striped.getAt(i)).isSameInstanceAs(object); // idempotent
      observed.add(object);
    }

    Set<Object> observed = Sets.newIdentityHashSet(); // for the sake of weakly referenced locks.
    // this gets the stripes with #getAt(index)
    for (int i = 0; i < striped.size(); i++) {
      Object object = striped.getAt(i);
      assertThat(object).isNotNull();
      assertThat(striped.getAt(i)).isSameInstanceAs(object); // idempotent
      observed.add(object);
    }

    @Override
    public boolean containsKey(@Nullable Object key) {
      Object obverseValue = key;
      return obverse.containsValue(obverseValue);
    }

    @Override
    public boolean containsValue(@Nullable Object value) {
      Object obverseKey = value;
      return obverse.containsKey(obverseKey);
    }

    @Override
    public @Nullable K get(@Nullable Object key) {
      Object obverseValue = key;

        .testEquals();
  }

  public void testHashCode() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    int expected =
        Objects.hash("foo", 1, 'a') + Objects.hash("bar", 1, 'b') + Objects.hash("foo", 3, 'c');
    assertEquals(expected, table.hashCode());
  }

  public void testToStringSize1() {
    table = create("foo", 1, 'a');