code: @Override
      public T deleteClass(Class<?> clazz) throws IllegalArgumentException {
          Validate.notNull(clazz, "Class must be specified");
  
          return deleteClasses(clazz);
      }
docs: /*
  (non-Javadoc)
  
  @see org.jboss.shrinkwrap.api.container.ClassContainer#deleteClass(java.lang.Class)