package org.checkstyle.suppressionxpathfilter.avoiddoublebraceinitialization;
   
   import java.util.HashSet;
   
   public class InputXpathAvoidDoubleBraceInitializationMethodDef {
       public void test() {
           new HashSet<String>() {{ /** warn */
              add("foo");
              add("bar");
          }};
      }
  
      enum InnerEnum {
          ;
          {}
      }
  }