src/java.base/share/classes/java/lang/Class.java

*** 1,7 ****
  /*
!  * Copyright (c) 1994, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1994, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 3418,3429 ****
       */
      private String methodToString(String name, Class<?>[] argTypes) {
          StringBuilder sb = new StringBuilder();
          sb.append(getName() + "." + name + "(");
          if (argTypes != null) {
!             Stream.of(argTypes).map(c -> {return (c == null) ? "null" : c.getName();}).
!                 collect(Collectors.joining(","));
          }
          sb.append(")");
          return sb.toString();
      }
  
--- 3418,3429 ----
       */
      private String methodToString(String name, Class<?>[] argTypes) {
          StringBuilder sb = new StringBuilder();
          sb.append(getName() + "." + name + "(");
          if (argTypes != null) {
!             sb.append(Stream.of(argTypes).map(c -> {return (c == null) ? "null" : c.getName();}).
!                       collect(Collectors.joining(",")));
          }
          sb.append(")");
          return sb.toString();
      }