Update JDK for 27

Fixes #113

Author: dmlloyd

src/main/java/io/smallrye/classfile/ClassFile.java

@@ -1038,6 +1038,14 @@ default List<VerifyError> verify(Path path) throws IOException {
      */
     int JAVA_26_VERSION = 70;
 
+    /**
+     * The class major version introduced by Java SE 27, {@value}.
+     *
+     * @see ClassFileFormatVersion#RELEASE_27
+     * @since 27
+     */
+    int JAVA_27_VERSION = 71;
+
     /**
      * A minor version number {@value} indicating a class uses preview features
      * of a Java SE release since 12, for major versions {@value
@@ -1049,7 +1057,7 @@ default List<VerifyError> verify(Path path) throws IOException {
      * {@return the latest class major version supported by the current runtime}
      */
     static int latestMajorVersion() {
-        return JAVA_26_VERSION;
+        return JAVA_27_VERSION;
     }
 
     /**

src/main/java/io/smallrye/classfile/extras/reflect/ClassFileFormatVersion.java

@@ -342,6 +342,18 @@ public enum ClassFileFormatVersion {
      * <cite>The Java Virtual Machine Specification, Java SE 26 Edition</cite></a>
      */
     RELEASE_26(70),
+
+    /**
+     * The version introduced by the Java Platform, Standard Edition
+     * 27.
+     *
+     * @since 27
+     *
+     * @see <a
+     * href="https://docs.oracle.com/en/java/javase/27/docs/specs/jvms/index.html">
+     * <cite>The Java Virtual Machine Specification, Java SE 27 Edition</cite></a>
+     */
+    RELEASE_27(71),
     ; // Reduce code churn when appending new constants
 
     // Note to maintainers: when adding constants for newer releases,
@@ -357,7 +369,7 @@ private ClassFileFormatVersion(int major) {
      * {@return the latest class file format version}
      */
     public static ClassFileFormatVersion latest() {
-        return RELEASE_26;
+        return RELEASE_27;
     }
 
     /**