src/java.base/share/classes/java/nio/file/spi/FileSystemProvider.java

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

*** 99,109 ****
   * The {@link #newFileSystem newFileSystem} method may be used to create a file
   * system, and the {@link #getFileSystem getFileSystem} method may be used to
   * obtain a reference to an existing file system created by the provider. Where
   * a provider is the factory for a single file system then it is provider dependent
   * if the file system is created when the provider is initialized, or later when
!  * the {@code newFileSystem} method is invoked. In the case of the default
   * provider, the {@code FileSystem} is created when the provider is initialized.
   *
   * <p> All of the methods in this class are safe for use by multiple concurrent
   * threads.
   *
--- 99,109 ----
   * The {@link #newFileSystem newFileSystem} method may be used to create a file
   * system, and the {@link #getFileSystem getFileSystem} method may be used to
   * obtain a reference to an existing file system created by the provider. Where
   * a provider is the factory for a single file system then it is provider dependent
   * if the file system is created when the provider is initialized, or later when
!  * the {@code newFileSystem} method is invoked. In the case of the system-default
   * provider, the {@code FileSystem} is created when the provider is initialized.
   *
   * <p> All of the methods in this class are safe for use by multiple concurrent
   * threads.
   *