code: @Override
      public void visitClassContext(ClassContext classContext) {
          try {
              JavaClass cls = classContext.getJavaClass();
  
              if (cls.isAbstract() || cls.isInterface()) {
                  return;
              }
  
              if (Values.DOTTED_JAVA_LANG_OBJECT.equals(cls.getSuperclassName())) {
                  return;
              }
  
              JavaClass[] infs = cls.getInterfaces();
              if (infs.length > 0) {
                  Set<QMethod> clsMethods = buildMethodSet(cls);
                  for (JavaClass inf : infs) {
                      Set<QMethod> infMethods = buildMethodSet(inf);
                      if (!infMethods.isEmpty()) {
                          infMethods.removeAll(clsMethods);
  
                          if (!infMethods.isEmpty()) {
                              JavaClass superCls = cls.getSuperClass();
                              filterSuperInterfaceMethods(inf, infMethods, superCls);
                              if (!infMethods.isEmpty() && !superCls.implementationOf(inf)) {
                                  int priority = AnalysisContext.currentAnalysisContext().isApplicationClass(superCls) ? NORMAL_PRIORITY : LOW_PRIORITY;
                                  BugInstance bi = new BugInstance(this, BugType.SCII_SPOILED_CHILD_INTERFACE_IMPLEMENTOR.name(), priority).addClass(cls)
                                          .addString("Implementing interface: " + inf.getClassName()).addString("Methods:");
                                  for (QMethod methodInfo : infMethods) {
                                      bi.addString('\t' + methodInfo.toString());
                                  }
  
                                  bugReporter.reportBug(bi);
                                  return;
                              }
                          }
                      }
                  }
              }
  
          } catch (ClassNotFoundException cnfe) {
              bugReporter.reportMissingClass(cnfe);
          }
      }
docs: looks for classes that implement interfaces but don't provide those methods
  
  @param classContext
  the context object of the currently parsed class