### Question:
ClasspathOverrideSource extends AbstractSource implements OverrideSource { public static Builder builder() { return new Builder(); } ClasspathOverrideSource(Builder builder); @Override Optional<OverrideContent> load(); static ClasspathOverrideSource create(Config config); static Builder builder();  }### Answer:
@Test public void testBuilder() { OverrideSource overrideSource = OverrideSources.classpath("overrides.properties").build(); assertThat(overrideSource, notNullValue()); }