BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,
            boolean sourceDominant,
            Map<Object, Object> context) {
        // don't merge
    }

    @Override
    protected void mergeBuildBase_TestResources(
            BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,
            boolean sourceDominant,

        assertNotNull(new Build().toString());
    }

    public void testToStringNotNonsense() {
        Build build = new Build();

        String s = build.toString();

        assert "Build {BuildBase {PluginConfiguration {PluginContainer {}}}}".equals(s) : s;
    }