public RingbufferStoreConfig setClassName(@Nonnull String className) {
        this.className = checkHasText(className, "Ringbuffer store class name must contain text");
        this.storeImplementation = null;
        return this;
    }
@Test
    public void testEqualsAndHashCode() {
        assumeDifferentHashCodes();
        EqualsVerifier.forClass(RingbufferStoreConfig.class)
                      .suppress(Warning.NONFINAL_FIELDS)
                      .withPrefabValues(RingbufferStoreConfigReadOnly.class,
                              new RingbufferStoreConfigReadOnly(new RingbufferStoreConfig().setClassName("red")),
                              new RingbufferStoreConfigReadOnly(new RingbufferStoreConfig().setClassName("black")))
                      .verify();
    }