src/java.base/share/classes/java/io/FileOutputStream.java

rev 11067 : 8025619.01

*** 24,33 ****
--- 24,34 ----
   */
  
  package java.io;
  
  import java.nio.channels.FileChannel;
+ import java.util.concurrent.atomic.AtomicBoolean;
  import sun.misc.SharedSecrets;
  import sun.misc.JavaIOFileDescriptorAccess;
  import sun.nio.ch.FileChannelImpl;
  
  
*** 74,85 ****
       * The path of the referenced file
       * (null if the stream is created with a file descriptor)
       */
      private final String path;
  
!     private final Object closeLock = new Object();
!     private volatile boolean closed = false;
  
      /**
       * Creates a file output stream to write to the file with the
       * specified name. A new <code>FileDescriptor</code> object is
       * created to represent this file connection.
--- 75,85 ----
       * The path of the referenced file
       * (null if the stream is created with a file descriptor)
       */
      private final String path;
  
!     private AtomicBoolean closed = new AtomicBoolean(false);
  
      /**
       * Creates a file output stream to write to the file with the
       * specified name. A new <code>FileDescriptor</code> object is
       * created to represent this file connection.
*** 339,354 ****
       *
       * @revised 1.4
       * @spec JSR-51
       */
      public void close() throws IOException {
!         synchronized (closeLock) {
!             if (closed) {
                  return;
              }
-             closed = true;
-         }
  
          if (channel != null) {
              channel.close();
          }
  
--- 339,352 ----
       *
       * @revised 1.4
       * @spec JSR-51
       */
      public void close() throws IOException {
!         if (!closed.compareAndSet(false, true)) {
!             // if compareAndSet() returns false closed was already true
              return;
          }
  
          if (channel != null) {
              channel.close();
          }
  
*** 395,404 ****
--- 393,409 ----
       */
      public FileChannel getChannel() {
          synchronized (this) {
              if (channel == null) {
                  channel = FileChannelImpl.open(fd, path, false, true, this);
+                 if (closed.get()) {
+                     try {
+                         channel.close();
+                     } catch (IOException ioe) {
+                         throw new InternalError(ioe); // should not happen
+                     }
+                 }
              }
              return channel;
          }
      }