add support of V19 (no change in the bytecode format)

asm-util/src/main/java/org/objectweb/asm/util/ASMifier.java

@@ -108,6 +108,7 @@ public class ASMifier extends Printer {
     classVersions.put(Opcodes.V16, "V16");
     classVersions.put(Opcodes.V17, "V17");
     classVersions.put(Opcodes.V18, "V18");
+    classVersions.put(Opcodes.V19, "V19");
     CLASS_VERSIONS = Collections.unmodifiableMap(classVersions);
   }
 

asm/src/main/java/org/objectweb/asm/ClassReader.java

@@ -194,7 +194,7 @@ public class ClassReader {
     this.b = classFileBuffer;
     // Check the class' major_version. This field is after the magic and minor_version fields, which
     // use 4 and 2 bytes respectively.
-    if (checkClassVersion && readShort(classFileOffset + 6) > Opcodes.V18) {
+    if (checkClassVersion && readShort(classFileOffset + 6) > Opcodes.V19) {
       throw new IllegalArgumentException(
           "Unsupported class file major version " + readShort(classFileOffset + 6));
     }

asm/src/main/java/org/objectweb/asm/Opcodes.java

@@ -284,6 +284,7 @@ public interface Opcodes {
   int V16 = 0 << 16 | 60;
   int V17 = 0 << 16 | 61;
   int V18 = 0 << 16 | 62;
+  int V19 = 0 << 16 | 63;
 
   /**
    * Version flag indicating that the class is using 'preview' features.

asm/src/test/java/org/objectweb/asm/ConstantsTest.java

@@ -251,6 +251,7 @@ public class ConstantsTest {
       case "V16":
       case "V17":
       case "V18":
+      case "V19":
         return ConstantType.CLASS_VERSION;
       case "ACC_PUBLIC":
       case "ACC_PRIVATE":