static JsPropertyMap<Object> of() {
	return new JavaStringMap<>();
}
 

@Nullable
@JsProperty
public JsPropertyMap<?> getData();
 

/**
 * Get an object of all property names and values.
 *
 * @return object of all property names and values
 */
public native <T> JsPropertyMap<T> getProperties();
 

public void testObject() {

        this.injectUrlAndTest(() -> {

            Object object = new View();
            assertNotNull(object);

            object.set(PARAM_CUSTOM_VALUE, 1d);

            assertNotNull(object.get(PARAM_CUSTOM_VALUE));
            assertEquals(1d, object.get(PARAM_CUSTOM_VALUE));
            assertNotNull(object.getProperties().get(PARAM_CUSTOM_VALUE));


            object.unset(PARAM_CUSTOM_VALUE);

            assertNull(object.get(PARAM_CUSTOM_VALUE));
            assertNull(object.getProperties().get(PARAM_CUSTOM_VALUE));

            JsPropertyMap<java.lang.Object> properties = JsPropertyMap.of();
            properties.set(PARAM_CUSTOM_VALUE, "new value");

            object.setProperties(properties);
            assertEquals("new value", object.get(PARAM_CUSTOM_VALUE));
            assertEquals("new value", object.getProperties().get(PARAM_CUSTOM_VALUE));

            object.setProperties(properties, true);

        });

    }
 

/**
 * Sets a collection of key-value pairs. Note that this changes any existing properties
 * and adds new ones (it does not remove any existing properties).
 *
 * @param properties properties to set
 */
public native <T> void setProperties(JsPropertyMap<T> properties);
 

/**
 * Sets a collection of key-value pairs. Note that this changes any existing properties
 * and adds new ones (it does not remove any existing properties).
 *
 * @param properties properties to set
 * @param silent Update without triggering an event.
 */
public native <T> void setProperties(JsPropertyMap<T> properties, boolean silent);