src/share/classes/java/lang/reflect/Modifier.java

*** 24,33 ****
--- 24,34 ----
   */
  
  package java.lang.reflect;
  
  import java.security.AccessController;
+ import java.util.StringJoiner;
  import sun.reflect.LangReflectAccess;
  import sun.reflect.ReflectionFactory;
  
  /**
   * The Modifier class provides {@code static} methods and
*** 230,260 ****
       * @param   mod a set of modifiers
       * @return  a string representation of the set of modifiers
       * represented by {@code mod}
       */
      public static String toString(int mod) {
!         StringBuilder sb = new StringBuilder();
!         int len;
  
!         if ((mod & PUBLIC) != 0)        sb.append("public ");
!         if ((mod & PROTECTED) != 0)     sb.append("protected ");
!         if ((mod & PRIVATE) != 0)       sb.append("private ");
  
          /* Canonical order */
!         if ((mod & ABSTRACT) != 0)      sb.append("abstract ");
!         if ((mod & STATIC) != 0)        sb.append("static ");
!         if ((mod & FINAL) != 0)         sb.append("final ");
!         if ((mod & TRANSIENT) != 0)     sb.append("transient ");
!         if ((mod & VOLATILE) != 0)      sb.append("volatile ");
!         if ((mod & SYNCHRONIZED) != 0)  sb.append("synchronized ");
!         if ((mod & NATIVE) != 0)        sb.append("native ");
!         if ((mod & STRICT) != 0)        sb.append("strictfp ");
!         if ((mod & INTERFACE) != 0)     sb.append("interface ");
! 
!         if ((len = sb.length()) > 0)    /* trim trailing space */
!             return sb.toString().substring(0, len-1);
!         return "";
      }
  
      /*
       * Access modifier flag constants from tables 4.1, 4.4, 4.5, and 4.7 of
       * <cite>The Java&trade; Virtual Machine Specification</cite>
--- 231,258 ----
       * @param   mod a set of modifiers
       * @return  a string representation of the set of modifiers
       * represented by {@code mod}
       */
      public static String toString(int mod) {
!         StringJoiner sj = new StringJoiner(" ");
  
!         if ((mod & PUBLIC) != 0)        sj.add("public");
!         if ((mod & PROTECTED) != 0)     sj.add("protected");
!         if ((mod & PRIVATE) != 0)       sj.add("private");
  
          /* Canonical order */
!         if ((mod & ABSTRACT) != 0)      sj.add("abstract");
!         if ((mod & STATIC) != 0)        sj.add("static");
!         if ((mod & FINAL) != 0)         sj.add("final");
!         if ((mod & TRANSIENT) != 0)     sj.add("transient");
!         if ((mod & VOLATILE) != 0)      sj.add("volatile");
!         if ((mod & SYNCHRONIZED) != 0)  sj.add("synchronized");
!         if ((mod & NATIVE) != 0)        sj.add("native");
!         if ((mod & STRICT) != 0)        sj.add("strictfp");
!         if ((mod & INTERFACE) != 0)     sj.add("interface");
! 
!         return sj.toString();
      }
  
      /*
       * Access modifier flag constants from tables 4.1, 4.4, 4.5, and 4.7 of
       * <cite>The Java&trade; Virtual Machine Specification</cite>