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

@@ -113,11 +113,12 @@
         V53(53, 0),   // JDK 1.9: modules, indy string concat
         V54(54, 0),   // JDK 10
         V55(55, 0),   // JDK 11: constant dynamic, nest mates
         V56(56, 0),   // JDK 12
         V57(57, 0),   // JDK 13
-        V58(58, 0);   // JDK 14
+        V58(58, 0),   // JDK 14
+        V59(59, 0);   // JDK 15
         Version(int major, int minor) {
             this.major = major;
             this.minor = minor;
         }
         public final int major, minor;