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

@@ -1411,10 +1411,11 @@
                      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 {