### Question:
NonEmptyFilterPlugin extends NonEmptyFilter { @PluginBuilderFactory public static Builder newBuilder() { return new NonEmptyFilterPlugin.Builder(); }  @PluginBuilderFactory static Builder newBuilder(); static final String PLUGIN_NAME; static final String ELEMENT_TYPE; }### Answer:
@Test public void builderBuildsSuccessfully() { NonEmptyFilterPlugin.Builder builder = NonEmptyFilterPlugin.newBuilder(); NonEmptyFilterPlugin filter = builder.build(); assertNotNull(filter); }