### Question:
JavaInterfaceBuilderImpl extends BaseBuilder implements JavaInterfaceBuilder { static List<String> getClassList(String value) { final List<String> result = new ArrayList<>(); if (isClassList(value)) { if (SINGLE_CLASS.matcher(value).matches()) { result.add(value.trim()); return result; } final Matcher matcher = CLASS_LIST_CONTENT.matcher(value); if (matcher.matches()) { final String content = matcher.group(1); final String[] items = content.trim().split(","); for (int i = 0; i < items.length; i++) { result.add(items[i].trim()); } } } return result; } 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 testGetClassList() { assertEquals( list("test.class", "test2.class", "test3.class"), getClassList("{test.class, test2.class , test3.class }")); assertEquals( list("test.class", "test2.class", "test3.class"), getClassList("{test.class,test2.class,test3.class}")); assertEquals(list("test.class"), getClassList("{test.class}")); assertEquals(list(), getClassList("{test.clas}")); assertEquals(list(), getClassList("{}")); assertEquals(list("test.class"), getClassList("test.class")); }