src/java.base/unix/classes/sun/nio/fs/UnixFileSystemProvider.java

8213406: (fs) More than one instance of built-in FileSystem observed in heap
Reviewed-by: alanb, cushon, weijun

*** 47,57 ****
  
  public abstract class UnixFileSystemProvider
      extends AbstractFileSystemProvider
  {
      private static final String USER_DIR = "user.dir";
!     private final UnixFileSystem theFileSystem;
  
      public UnixFileSystemProvider() {
          String userDir = System.getProperty(USER_DIR);
          theFileSystem = newFileSystem(userDir);
      }
--- 47,57 ----
  
  public abstract class UnixFileSystemProvider
      extends AbstractFileSystemProvider
  {
      private static final String USER_DIR = "user.dir";
!     final UnixFileSystem theFileSystem;
  
      public UnixFileSystemProvider() {
          String userDir = System.getProperty(USER_DIR);
          theFileSystem = newFileSystem(userDir);
      }