src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystemProvider.java

rev 51534 : 8034802: (zipfs) newFileSystem throws UOE when the zip file is located in a custom file system
Reviewed-by: xiaofeya, clanger

*** 1,7 ****
  /*
!  * Copyright (c) 2009, 2014, 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) 2009, 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
*** 122,134 ****
  
      @Override
      public FileSystem newFileSystem(Path path, Map<String, ?> env)
          throws IOException
      {
-         if (path.getFileSystem() != FileSystems.getDefault()) {
-             throw new UnsupportedOperationException();
-         }
          ensureFile(path);
           try {
               ZipFileSystem zipfs;
               if (env.containsKey("multi-release")) {
                   zipfs = new JarFileSystem(this, path, env);
--- 122,131 ----