Channels.java (newInputStream, [...]): Optimize when argument is a FileChannelImpl.

	* java/nio/channels/Channels.java (newInputStream, newOutputStream):
	Optimize when argument is a FileChannelImpl.
	(newInputStream(FileChannelImpl), newOutputStream(FileChannelImpl)):
	New native methods.
	* java/nio/channels/natChannels.cc:  New file for new native methods.
	* Makefile.am:  Update accordingly.

From-SVN: r78867

5 files changed, 141 insertions, 92 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index edc170f..8e3603b 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,12 @@
+2004-03-03  Per Bothner  <per@bothner.com>
+
+	* java/nio/channels/Channels.java (newInputStream, newOutputStream):
+	Optimize when argument is a FileChannelImpl.
+	(newInputStream(FileChannelImpl), newOutputStream(FileChannelImpl)):
+	New native methods.
+	* java/nio/channels/natChannels.cc:  New file for new native methods.
+	* Makefile.am:  Update accordingly.
+
 2004-03-02  Jan Hubicka  <jh@suse.cz>
 
 	* configure.host: Pass -fno-omit-frame-pointer for i386.
@@ -8,15 +17,6 @@
 
 	* java/lang/natPosixProcess.cc (startProcess):  Fix thinko.
 
-2004-03-01  Per Bothner  <per@bothner.com>
-
-	* java/nio/channels/Channels.java (newInputStream, newOutputStream):
-	Optimize when argument is a FileChannelImpl.
-	(newInputStream(FileChannelImpl), newOutputStream(FileChannelImpl)):
-	New native methods.
-	* java/nio/channels/natChannels.cc:  New file for new native methods.
-	* Makefile.am:  Update accordingly.
-
 2004-02-29  Per Bothner  <per@bothner.com>
 
 	* java/nio/channels/FileChannelImpl.java:  Moved to package
diff --git a/libjava/Makefile.am b/libjava/Makefile.am
index 0b9dfbc..54a4d5b 100644
--- a/libjava/Makefile.am
+++ b/libjava/Makefile.am
@@ -2852,6 +2852,7 @@ java/lang/reflect/natMethod.cc \
 java/lang/reflect/natProxy.cc \
 java/net/natNetworkInterface.cc \
 java/net/natInetAddress.cc \
+java/nio/channels/natChannels.cc \
 java/nio/natDirectByteBufferImpl.cc \
 java/text/natCollator.cc \
 java/util/natResourceBundle.cc \
diff --git a/libjava/Makefile.in b/libjava/Makefile.in
index def488d..2f0b5a68 100644
--- a/libjava/Makefile.in
+++ b/libjava/Makefile.in
@@ -2529,6 +2529,7 @@ java/lang/reflect/natMethod.cc \
 java/lang/reflect/natProxy.cc \
 java/net/natNetworkInterface.cc \
 java/net/natInetAddress.cc \
+java/nio/channels/natChannels.cc \
 java/nio/natDirectByteBufferImpl.cc \
 java/text/natCollator.cc \
 java/util/natResourceBundle.cc \
@@ -2693,10 +2694,10 @@ java/lang/natVMSecurityManager.lo java/lang/ref/natReference.lo \
 java/lang/reflect/natArray.lo java/lang/reflect/natConstructor.lo \
 java/lang/reflect/natField.lo java/lang/reflect/natMethod.lo \
 java/lang/reflect/natProxy.lo java/net/natNetworkInterface.lo \
-java/net/natInetAddress.lo java/nio/natDirectByteBufferImpl.lo \
-java/text/natCollator.lo java/util/natResourceBundle.lo \
-java/util/natTimeZone.lo java/util/zip/natDeflater.lo \
-java/util/zip/natInflater.lo
+java/net/natInetAddress.lo java/nio/channels/natChannels.lo \
+java/nio/natDirectByteBufferImpl.lo java/text/natCollator.lo \
+java/util/natResourceBundle.lo java/util/natTimeZone.lo \
+java/util/zip/natDeflater.lo java/util/zip/natInflater.lo
 lib_org_xml_sax_la_DEPENDENCIES =  libgcj.la
 lib_org_xml_sax_la_OBJECTS =  org/xml/sax/ext/DeclHandler.lo \
 org/xml/sax/ext/LexicalHandler.lo \
@@ -2736,83 +2737,6 @@ org/w3c/dom/traversal/NodeFilter.lo \
 org/w3c/dom/traversal/NodeIterator.lo \
 org/w3c/dom/traversal/TreeWalker.lo
 lib_gnu_java_awt_peer_gtk_la_DEPENDENCIES = 
-@GTK_CAIRO_FALSE@lib_gnu_java_awt_peer_gtk_la_OBJECTS =  \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkClasspathFontPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkFontMetrics.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGlyphVector.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGraphics.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGraphics2D.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkPixbufDecoder.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkArg.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkArgList.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkButtonPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCanvasPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxGroupPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxMenuItemPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkChoicePeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkClipboard.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkComponentPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkContainerPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkDialogPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkEmbeddedWindowPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFileDialogPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFontPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFramePeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkGenericPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkImage.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkImagePainter.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkLabelPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkListPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMainThread.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuBarPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuComponentPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuItemPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkOffScreenImage.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkPanelPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkPopupMenuPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkScrollPanePeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkScrollbarPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextAreaPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextComponentPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextFieldPeer.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkToolkit.lo \
-@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkWindowPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkFontMetrics.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkButtonPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCanvasPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxMenuItemPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkChoicePeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkClipboard.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkComponentPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkEmbeddedWindowPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkEvents.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkFileDialogPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkImagePainter.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkLabelPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkListPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMainThread.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuBarPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuComponentPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuItemPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkPanelPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkPopupMenuPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollPanePeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextAreaPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextComponentPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextFieldPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkToolkit.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkWindowPeer.lo \
-@GTK_CAIRO_FALSE@jni/gtk-peer/gthread-jni.lo jni/classpath/jcl.lo \
-@GTK_CAIRO_FALSE@jni/classpath/jnilink.lo jni/classpath/native_state.lo \
-@GTK_CAIRO_FALSE@jni/classpath/primlib.lo
 @GTK_CAIRO_TRUE@lib_gnu_java_awt_peer_gtk_la_OBJECTS =  \
 @GTK_CAIRO_TRUE@gnu/java/awt/peer/gtk/GdkClasspathFontPeer.lo \
 @GTK_CAIRO_TRUE@gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.lo \
@@ -2894,6 +2818,83 @@ lib_gnu_java_awt_peer_gtk_la_DEPENDENCIES =
 @GTK_CAIRO_TRUE@jni/gtk-peer/gthread-jni.lo jni/classpath/jcl.lo \
 @GTK_CAIRO_TRUE@jni/classpath/jnilink.lo jni/classpath/native_state.lo \
 @GTK_CAIRO_TRUE@jni/classpath/primlib.lo
+@GTK_CAIRO_FALSE@lib_gnu_java_awt_peer_gtk_la_OBJECTS =  \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkClasspathFontPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkFontMetrics.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGlyphVector.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGraphics.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkGraphics2D.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GdkPixbufDecoder.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkArg.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkArgList.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkButtonPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCanvasPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxGroupPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxMenuItemPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkCheckboxPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkChoicePeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkClipboard.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkComponentPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkContainerPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkDialogPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkEmbeddedWindowPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFileDialogPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFontPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkFramePeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkGenericPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkImage.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkImagePainter.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkLabelPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkListPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMainThread.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuBarPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuComponentPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuItemPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkMenuPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkOffScreenImage.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkPanelPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkPopupMenuPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkScrollPanePeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkScrollbarPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextAreaPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextComponentPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkTextFieldPeer.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkToolkit.lo \
+@GTK_CAIRO_FALSE@gnu/java/awt/peer/gtk/GtkWindowPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkFontMetrics.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkButtonPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCanvasPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxMenuItemPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkChoicePeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkClipboard.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkComponentPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkEmbeddedWindowPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkEvents.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkFileDialogPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkImagePainter.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkLabelPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkListPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMainThread.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuBarPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuComponentPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuItemPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkPanelPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkPopupMenuPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollPanePeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextAreaPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextComponentPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextFieldPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkToolkit.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gnu_java_awt_peer_gtk_GtkWindowPeer.lo \
+@GTK_CAIRO_FALSE@jni/gtk-peer/gthread-jni.lo jni/classpath/jcl.lo \
+@GTK_CAIRO_FALSE@jni/classpath/jnilink.lo jni/classpath/native_state.lo \
+@GTK_CAIRO_FALSE@jni/classpath/primlib.lo
 lib_gnu_awt_xlib_la_OBJECTS =  gnu/gcj/xlib/natClip.lo \
 gnu/gcj/xlib/natColormap.lo gnu/gcj/xlib/natDisplay.lo \
 gnu/gcj/xlib/natDrawable.lo gnu/gcj/xlib/natFont.lo \
@@ -3832,6 +3833,7 @@ DEP_FILES =  .deps/$(srcdir)/$(CONVERT_DIR)/gen-from-JIS.P \
 .deps/java/nio/channels/UnresolvedAddressException.P \
 .deps/java/nio/channels/UnsupportedAddressTypeException.P \
 .deps/java/nio/channels/WritableByteChannel.P \
+.deps/java/nio/channels/natChannels.P \
 .deps/java/nio/channels/spi/AbstractInterruptibleChannel.P \
 .deps/java/nio/channels/spi/AbstractSelectableChannel.P \
 .deps/java/nio/channels/spi/AbstractSelectionKey.P \
diff --git a/libjava/java/nio/channels/Channels.java b/libjava/java/nio/channels/Channels.java
index cb6154e..896e173 100644
--- a/libjava/java/nio/channels/Channels.java
+++ b/libjava/java/nio/channels/Channels.java
@@ -41,8 +41,11 @@ import gnu.java.nio.ChannelInputStream;
 import gnu.java.nio.ChannelOutputStream;
 import gnu.java.nio.InputStreamChannel;
 import gnu.java.nio.OutputStreamChannel;
+import gnu.java.nio.channels.FileChannelImpl;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.Reader;
 import java.io.Writer;
 import java.nio.charset.Charset;
@@ -59,16 +62,23 @@ public final class Channels
    */
   public static InputStream newInputStream(ReadableByteChannel ch)
   {
+    if (ch instanceof FileChannelImpl)
+      return newInputStream((FileChannelImpl) ch);
     return new ChannelInputStream(ch);
   }
-  
+
   /**
    * Constructs a stream that writes bytes to the given channel.
    */
   public static OutputStream newOutputStream(WritableByteChannel ch) 
   {
+    if (ch instanceof FileChannelImpl)
+      return newOutputStream((FileChannelImpl) ch);
     return new ChannelOutputStream(ch);
   }
+
+  static native FileInputStream newInputStream(FileChannelImpl ch);
+  static native FileOutputStream newOutputStream(FileChannelImpl ch);
   
   /**
    * Constructs a channel that reads bytes from the given stream.
@@ -77,7 +87,7 @@ public final class Channels
   {
     return new InputStreamChannel(in);
   }
-  
+
   /**
    * Constructs a channel that writes bytes to the given stream.
    */
diff --git a/libjava/java/nio/channels/natChannels.cc b/libjava/java/nio/channels/natChannels.cc
new file mode 100644
index 0000000..5e363ee
--- /dev/null
+++ b/libjava/java/nio/channels/natChannels.cc
@@ -0,0 +1,36 @@
+// natChannels.cc - Native part of Channels class.
+
+/* Copyright (C) 2004  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <gcj/cni.h>
+
+#include <java/nio/channels/Channels.h>
+#include <java/io/FileInputStream.h>
+#include <java/io/FileOutputStream.h>
+#include <gnu/java/nio/channels/FileChannelImpl.h>
+
+using java::nio::channels::Channels;
+using java::io::FileInputStream;
+using java::io::FileOutputStream;
+using gnu::java::nio::channels::FileChannelImpl;
+
+FileInputStream*
+Channels::newInputStream(FileChannelImpl* ch)
+{
+  // Needs to be native to bypass Java access protection.
+  return new FileInputStream (ch);
+}
+
+FileOutputStream*
+Channels::newOutputStream(FileChannelImpl* ch)
+{
+  // Needs to be native to bypass Java access protection.
+  return new FileOutputStream (ch);
+}