### Question:
JavaInterfaceBuilderImpl extends BaseBuilder implements JavaInterfaceBuilder { static boolean isClassList(String value) { if (SINGLE_CLASS.matcher(value).matches()) { return true; } return CLASS_LIST.matcher(value).matches(); } JavaInterfaceBuilderImpl(String packageName, String name, String annotationsPackage); static void main(String[] args); @Override void setJavaDoc(String comment); @Override void addAnnotation(String annotationName); @Override void addMethodAnnotation(String methodName, String annotationName); @Override void addParametrizedMethodAnnotation(
      String methodName, String annotationName, String parameter); @Override String getName(); @Override void addImport(String packageName, String object); @Override void addMethod(
      String name, String description, List<MethodParam> methodParams, String returnType);  }### Answer:
@Test public void testIsClassList() { assertFalse(isClassList("")); assertFalse(isClassList("test")); assertTrue(isClassList("test.class")); assertTrue(isClassList("{test.class}")); assertTrue(isClassList("{test.class,test2.class}")); assertTrue(isClassList("{ test.class , test2.class }")); assertFalse(isClassList("{ test.class . test2.class }")); assertTrue(isClassList("{test.class,test2.class}")); assertTrue(isClassList("{test.class,test2.class,test3.class}")); }