src/java.base/share/classes/jdk/internal/org/objectweb/asm/commons/SerialVersionUIDAdder.java

@@ -232,11 +232,11 @@
      */
     @Override
     public void visit(final int version, final int access, final String name,
             final String signature, final String superName,
             final String[] interfaces) {
-        computeSVUID = (access & Opcodes.ACC_INTERFACE) == 0;
+        computeSVUID = (access & Opcodes.ACC_ENUM) == 0;
 
         if (computeSVUID) {
             this.name = name;
             this.access = access;
             this.interfaces = new String[interfaces.length];

@@ -394,10 +394,15 @@
             dos.writeUTF(name.replace('/', '.'));
 
             /*
              * 2. The class modifiers written as a 32-bit integer.
              */
+            int access = this.access;
+            if ((access & Opcodes.ACC_INTERFACE) != 0) {
+                access = (svuidMethods.size() > 0) ? (access | Opcodes.ACC_ABSTRACT)
+                        : (access & ~Opcodes.ACC_ABSTRACT);
+            }
             dos.writeInt(access
                     & (Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL
                             | Opcodes.ACC_INTERFACE | Opcodes.ACC_ABSTRACT));
 
             /*