--- old/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Target.java	2017-01-26 13:55:28.563830727 -0800
+++ new/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Target.java	2017-01-26 13:55:28.475830723 -0800
@@ -61,7 +61,10 @@
     JDK1_8("1.8", 52, 0),
 
     /** JDK 9. */
-    JDK1_9("1.9", 53, 0);
+    JDK1_9("1.9", 53, 0),
+
+    /** JDK 10, initially an alias for 9 */
+    JDK1_10("1.10", 53, 0);
 
     private static final Context.Key<Target> targetKey = new Context.Key<>();
 
@@ -91,6 +94,7 @@
         tab.put("7", JDK1_7);
         tab.put("8", JDK1_8);
         tab.put("9", JDK1_9);
+        tab.put("10", JDK1_10);
     }
 
     public final String name;
@@ -102,7 +106,7 @@
         this.minorVersion = minorVersion;
     }
 
-    public static final Target DEFAULT = JDK1_9;
+    public static final Target DEFAULT = values()[values().length - 1];
 
     public static Target lookup(String name) {
         return tab.get(name);
@@ -146,5 +150,4 @@
     public String multiReleaseValue() {
         return Integer.toString(this.ordinal() - Target.JDK1_1.ordinal() + 1);
     }
-
 }