src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Target.java

*** 47,72 ****
  
      /** J2SE1.4 = Merlin. */
      JDK1_4("1.4", 48, 0),
  
      /** JDK 5, codename Tiger. */
!     JDK1_5("1.5", 49, 0),
  
      /** JDK 6. */
!     JDK1_6("1.6", 50, 0),
  
      /** JDK 7. */
!     JDK1_7("1.7", 51, 0),
  
      /** JDK 8. */
!     JDK1_8("1.8", 52, 0),
  
      /** JDK 9. */
!     JDK1_9("1.9", 53, 0),
  
      /** JDK 10. */
!     JDK1_10("1.10", 54, 0),
  
      /** JDK 11. */
      JDK1_11("11", 55, 0),
  
      /** JDK 12. */
--- 47,72 ----
  
      /** J2SE1.4 = Merlin. */
      JDK1_4("1.4", 48, 0),
  
      /** JDK 5, codename Tiger. */
!     JDK1_5("5", 49, 0),
  
      /** JDK 6. */
!     JDK1_6("6", 50, 0),
  
      /** JDK 7. */
!     JDK1_7("7", 51, 0),
  
      /** JDK 8. */
!     JDK1_8("8", 52, 0),
  
      /** JDK 9. */
!     JDK1_9("9", 53, 0),
  
      /** JDK 10. */
!     JDK1_10("10", 54, 0),
  
      /** JDK 11. */
      JDK1_11("11", 55, 0),
  
      /** JDK 12. */
*** 93,110 ****
      private static final Map<String,Target> tab = new HashMap<>();
      static {
          for (Target t : values()) {
              tab.put(t.name, t);
          }
!         tab.put("5", JDK1_5);
!         tab.put("6", JDK1_6);
!         tab.put("7", JDK1_7);
!         tab.put("8", JDK1_8);
!         tab.put("9", JDK1_9);
!         tab.put("10", JDK1_10);
!         tab.put("11", JDK1_11);
!         tab.put("12", JDK1_12);
      }
  
      public final String name;
      public final int majorVersion;
      public final int minorVersion;
--- 93,108 ----
      private static final Map<String,Target> tab = new HashMap<>();
      static {
          for (Target t : values()) {
              tab.put(t.name, t);
          }
!         tab.put("1.5", JDK1_5);
!         tab.put("1.6", JDK1_6);
!         tab.put("1.7", JDK1_7);
!         tab.put("1.8", JDK1_8);
!         tab.put("1.9", JDK1_9);
!         tab.put("1.10", JDK1_10);
      }
  
      public final String name;
      public final int majorVersion;
      public final int minorVersion;
*** 118,127 ****
--- 116,129 ----
  
      public static Target lookup(String name) {
          return tab.get(name);
      }
  
+     public boolean isSupported() {
+         return this.compareTo(MIN) >= 0;
+     }
+ 
      /** Return the character to be used in constructing synthetic
       *  identifiers, where not specified by the JLS.
       */
      public char syntheticNameChar() {
          return '$';