src/java.base/share/classes/jdk/internal/org/objectweb/asm/util/CheckMethodAdapter.java

@@ -1433,10 +1433,11 @@
                     return checkDescriptor(version, descriptor, pos, false);
                 } else {
                     throw new IllegalArgumentException(INVALID_DESCRIPTOR + descriptor);
                 }
             case 'L':
+            case 'Q':
                 int endPos = descriptor.indexOf(';', startPos);
                 if (startPos == -1 || endPos - startPos < 2) {
                     throw new IllegalArgumentException(INVALID_DESCRIPTOR + descriptor);
                 }
                 try {