src/jdk/nashorn/internal/objects/NativeRegExp.java

*** 673,683 ****
          }
  
          start = matcher.find(start) ? matcher.start() : -1;
  
          if (global) {
!             setLastIndex(matcher.end());
          }
  
          return start;
      }
  
--- 673,683 ----
          }
  
          start = matcher.find(start) ? matcher.start() : -1;
  
          if (global) {
!             setLastIndex(start == -1? -1 : matcher.end());
          }
  
          return start;
      }