src/java.base/share/classes/com/sun/java/util/jar/pack/PackageReader.java

*** 1,7 ****
  /*
!  * Copyright (c) 2001, 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
--- 1,7 ----
  /*
!  * Copyright (c) 2001, 2016, 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
*** 73,84 ****
       *  the maximum number of characters that future reads
       *  can consume from the underlying stream.
       */
      static
      class LimitedBuffer extends BufferedInputStream {
-         static final InputStream NULL_STREAM = InputStream.nullInputStream();
- 
          long served;     // total number of charburgers served
          int  servedPos;  // ...as of this value of super.pos
          long limit;      // current declared limit
          long buffered;
          public boolean atLimit() {
--- 73,82 ----
*** 123,133 ****
          }
          public long skip(long n) throws IOException {
              throw new RuntimeException("no skipping");
          }
          LimitedBuffer(InputStream originalIn) {
!             super(NULL_STREAM, 1<<14);
              servedPos = pos;
              super.in = new FilterInputStream(originalIn) {
                  public int read() throws IOException {
                      if (buffered == limit)
                          return -1;
--- 121,131 ----
          }
          public long skip(long n) throws IOException {
              throw new RuntimeException("no skipping");
          }
          LimitedBuffer(InputStream originalIn) {
!             super(null, 1<<14);
              servedPos = pos;
              super.in = new FilterInputStream(originalIn) {
                  public int read() throws IOException {
                      if (buffered == limit)
                          return -1;