src/jdk.jdeps/share/classes/com/sun/tools/jdeprscan/Pretty.java

@@ -147,10 +147,11 @@
                  name = "double";
                  break;
              case 'V':
                  name = "void";
                  break;
+             case 'Q':
              case 'L':
                  int semi = desc.indexOf(';', pos);
                  if (semi == -1) {
                      return null;
                  }