feature/android 15bcb446be2 3/7: Update Android port

[Po Lu]

branch: feature/android
commit 15bcb446be2f2f5b85a1b9585ec3abaabcbf04d9
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Update Android port
    
    * java/Makefile.in (ETAGS, clean): New rules to generate tags.
    * java/org/gnu/emacs/EmacsActivity.java (EmacsActivity):
    * java/org/gnu/emacs/EmacsApplication.java (EmacsApplication):
    * java/org/gnu/emacs/EmacsContextMenu.java (EmacsContextMenu):
    * java/org/gnu/emacs/EmacsCopyArea.java (EmacsCopyArea):
    * java/org/gnu/emacs/EmacsDialog.java (EmacsDialog)::(dialog.
    Then):
    * java/org/gnu/emacs/EmacsDocumentsProvider.java
    (EmacsDocumentsProvider):
    * java/org/gnu/emacs/EmacsDrawLine.java (EmacsDrawLine):
    * java/org/gnu/emacs/EmacsDrawPoint.java (EmacsDrawPoint):
    * java/org/gnu/emacs/EmacsDrawRectangle.java
    (EmacsDrawRectangle):
    * java/org/gnu/emacs/EmacsFillPolygon.java (EmacsFillPolygon):
    * java/org/gnu/emacs/EmacsFillRectangle.java
    (EmacsFillRectangle):
    * java/org/gnu/emacs/EmacsGC.java (EmacsGC):
    * java/org/gnu/emacs/EmacsInputConnection.java
    (EmacsInputConnection):
    * java/org/gnu/emacs/EmacsNative.java (EmacsNative):
    * java/org/gnu/emacs/EmacsNoninteractive.java
    (EmacsNoninteractive):
    * java/org/gnu/emacs/EmacsOpenActivity.java (EmacsOpenActivity):
    * java/org/gnu/emacs/EmacsPixmap.java (EmacsPixmap):
    * java/org/gnu/emacs/EmacsPreferencesActivity.java
    (EmacsPreferencesActivity):
    * java/org/gnu/emacs/EmacsSdk11Clipboard.java
    (EmacsSdk11Clipboard):
    * java/org/gnu/emacs/EmacsSdk23FontDriver.java
    (EmacsSdk23FontDriver):
    * java/org/gnu/emacs/EmacsSdk8Clipboard.java
    (EmacsSdk8Clipboard):
    * java/org/gnu/emacs/EmacsService.java (EmacsService):
    * java/org/gnu/emacs/EmacsSurfaceView.java (EmacsSurfaceView)
    (buffers):
    * java/org/gnu/emacs/EmacsView.java (EmacsView, ViewGroup):
    * java/org/gnu/emacs/EmacsWindow.java (EmacsWindow, drawables):
    * java/org/gnu/emacs/EmacsWindowAttachmentManager.java
    (EmacsWindowAttachmentManager): Make classes final where
    appropriate.
---
 java/Makefile.in                                   | 16 +++++++++++++++-
 java/org/gnu/emacs/EmacsActivity.java              | 22 +++++++++++-----------
 java/org/gnu/emacs/EmacsApplication.java           |  2 +-
 java/org/gnu/emacs/EmacsContextMenu.java           |  2 +-
 java/org/gnu/emacs/EmacsCopyArea.java              |  2 +-
 java/org/gnu/emacs/EmacsDialog.java                |  2 +-
 java/org/gnu/emacs/EmacsDocumentsProvider.java     |  2 +-
 java/org/gnu/emacs/EmacsDrawLine.java              |  2 +-
 java/org/gnu/emacs/EmacsDrawPoint.java             |  2 +-
 java/org/gnu/emacs/EmacsDrawRectangle.java         |  2 +-
 java/org/gnu/emacs/EmacsFillPolygon.java           |  2 +-
 java/org/gnu/emacs/EmacsFillRectangle.java         |  2 +-
 java/org/gnu/emacs/EmacsGC.java                    |  2 +-
 java/org/gnu/emacs/EmacsInputConnection.java       | 11 ++++++++++-
 java/org/gnu/emacs/EmacsNative.java                |  2 +-
 java/org/gnu/emacs/EmacsNoninteractive.java        |  2 +-
 java/org/gnu/emacs/EmacsOpenActivity.java          |  2 +-
 java/org/gnu/emacs/EmacsPixmap.java                |  2 +-
 java/org/gnu/emacs/EmacsPreferencesActivity.java   |  2 +-
 java/org/gnu/emacs/EmacsSdk11Clipboard.java        |  2 +-
 java/org/gnu/emacs/EmacsSdk23FontDriver.java       |  2 +-
 java/org/gnu/emacs/EmacsSdk8Clipboard.java         |  2 +-
 java/org/gnu/emacs/EmacsService.java               |  2 +-
 java/org/gnu/emacs/EmacsSurfaceView.java           |  2 +-
 java/org/gnu/emacs/EmacsView.java                  |  2 +-
 java/org/gnu/emacs/EmacsWindow.java                |  2 +-
 .../gnu/emacs/EmacsWindowAttachmentManager.java    |  2 +-
 27 files changed, 60 insertions(+), 37 deletions(-)

diff --git a/java/Makefile.in b/java/Makefile.in
index 7ba05f6c9a3..bff021752c7 100644
--- a/java/Makefile.in
+++ b/java/Makefile.in
@@ -281,9 +281,23 @@ $(APK_NAME): classes.dex emacs.apk-in emacs.keystore
        $(AM_V_SILENT) $(APKSIGNER) $(SIGN_EMACS_V2) $@
        $(AM_V_SILENT) rm -f $@.unaligned *.idsig
 
+# TAGS generation.
+
+ETAGS = $(top_builddir)/lib-src/etags
+
+$(ETAGS): FORCE
+       $(MAKE) -C ../lib-src $(notdir $@)
+
+tagsfiles = $(JAVA_FILES) $(RESOURCE_FILE)
+
+.PHONY: tags FORCE
+tags: TAGS
+TAGS: $(ETAGS) $(tagsfiles)
+       $(AM_V_GEN) $(ETAGS) $(tagsfiles)
+
 clean:
        rm -f *.apk emacs.apk-in *.dex *.unaligned *.class *.idsig
-       rm -rf install-temp $(RESOURCE_FILE)
+       rm -rf install-temp $(RESOURCE_FILE) TAGS
        find . -name '*.class' -delete
 
 maintainer-clean distclean bootstrap-clean: clean
diff --git a/java/org/gnu/emacs/EmacsActivity.java 
b/java/org/gnu/emacs/EmacsActivity.java
index 7e09e608984..0ee8c239899 100644
--- a/java/org/gnu/emacs/EmacsActivity.java
+++ b/java/org/gnu/emacs/EmacsActivity.java
@@ -108,7 +108,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   detachWindow ()
   {
     syncFullscreenWith (null);
@@ -131,7 +131,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   attachWindow (EmacsWindow child)
   {
     Log.d (TAG, "attachWindow: " + child);
@@ -161,21 +161,21 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   destroy ()
   {
     finish ();
   }
 
   @Override
-  public EmacsWindow
+  public final EmacsWindow
   getAttachedWindow ()
   {
     return window;
   }
 
   @Override
-  public void
+  public final void
   onCreate (Bundle savedInstanceState)
   {
     FrameLayout.LayoutParams params;
@@ -238,7 +238,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   onWindowFocusChanged (boolean isFocused)
   {
     Log.d (TAG, ("onWindowFocusChanged: "
@@ -256,7 +256,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   onPause ()
   {
     isPaused = true;
@@ -266,7 +266,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   onResume ()
   {
     isPaused = false;
@@ -279,7 +279,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   onContextMenuClosed (Menu menu)
   {
     Log.d (TAG, "onContextMenuClosed: " + menu);
@@ -298,7 +298,7 @@ public class EmacsActivity extends Activity
   }
 
   @SuppressWarnings ("deprecation")
-  public void
+  public final void
   syncFullscreenWith (EmacsWindow emacsWindow)
   {
     WindowInsetsController controller;
@@ -372,7 +372,7 @@ public class EmacsActivity extends Activity
   }
 
   @Override
-  public void
+  public final void
   onAttachedToWindow ()
   {
     super.onAttachedToWindow ();
diff --git a/java/org/gnu/emacs/EmacsApplication.java 
b/java/org/gnu/emacs/EmacsApplication.java
index 6a065165eb1..10099721744 100644
--- a/java/org/gnu/emacs/EmacsApplication.java
+++ b/java/org/gnu/emacs/EmacsApplication.java
@@ -27,7 +27,7 @@ import android.content.Context;
 import android.app.Application;
 import android.util.Log;
 
-public class EmacsApplication extends Application
+public final class EmacsApplication extends Application
 {
   private static final String TAG = "EmacsApplication";
 
diff --git a/java/org/gnu/emacs/EmacsContextMenu.java 
b/java/org/gnu/emacs/EmacsContextMenu.java
index 6b3ae0c6de9..0de292af21a 100644
--- a/java/org/gnu/emacs/EmacsContextMenu.java
+++ b/java/org/gnu/emacs/EmacsContextMenu.java
@@ -42,7 +42,7 @@ import android.widget.PopupMenu;
    Android menu, which can be turned into a popup (or other kind of)
    menu.  */
 
-public class EmacsContextMenu
+public final class EmacsContextMenu
 {
   private static final String TAG = "EmacsContextMenu";
 
diff --git a/java/org/gnu/emacs/EmacsCopyArea.java 
b/java/org/gnu/emacs/EmacsCopyArea.java
index 1daa2190542..f69b0cde866 100644
--- a/java/org/gnu/emacs/EmacsCopyArea.java
+++ b/java/org/gnu/emacs/EmacsCopyArea.java
@@ -27,7 +27,7 @@ import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
 import android.graphics.Xfermode;
 
-public class EmacsCopyArea
+public final class EmacsCopyArea
 {
   private static Xfermode overAlu;
 
diff --git a/java/org/gnu/emacs/EmacsDialog.java 
b/java/org/gnu/emacs/EmacsDialog.java
index 9f9124ce99c..80a5e5f7369 100644
--- a/java/org/gnu/emacs/EmacsDialog.java
+++ b/java/org/gnu/emacs/EmacsDialog.java
@@ -38,7 +38,7 @@ import android.view.ViewGroup;
    describes a single alert dialog.  Then, `inflate' turns it into
    AlertDialog.  */
 
-public class EmacsDialog implements DialogInterface.OnDismissListener
+public final class EmacsDialog implements DialogInterface.OnDismissListener
 {
   private static final String TAG = "EmacsDialog";
 
diff --git a/java/org/gnu/emacs/EmacsDocumentsProvider.java 
b/java/org/gnu/emacs/EmacsDocumentsProvider.java
index 3c3c7ead3c5..901c3b909e0 100644
--- a/java/org/gnu/emacs/EmacsDocumentsProvider.java
+++ b/java/org/gnu/emacs/EmacsDocumentsProvider.java
@@ -48,7 +48,7 @@ import java.io.IOException;
 
    This functionality is only available on Android 19 and later.  */
 
-public class EmacsDocumentsProvider extends DocumentsProvider
+public final class EmacsDocumentsProvider extends DocumentsProvider
 {
   /* Home directory.  This is the directory whose contents are
      initially returned to requesting applications.  */
diff --git a/java/org/gnu/emacs/EmacsDrawLine.java 
b/java/org/gnu/emacs/EmacsDrawLine.java
index c6e5123bfca..0b23138a36c 100644
--- a/java/org/gnu/emacs/EmacsDrawLine.java
+++ b/java/org/gnu/emacs/EmacsDrawLine.java
@@ -29,7 +29,7 @@ import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
 import android.graphics.Xfermode;
 
-public class EmacsDrawLine
+public final class EmacsDrawLine
 {
   public static void
   perform (EmacsDrawable drawable, EmacsGC gc,
diff --git a/java/org/gnu/emacs/EmacsDrawPoint.java 
b/java/org/gnu/emacs/EmacsDrawPoint.java
index 3bc7be17961..de8ddf09cc4 100644
--- a/java/org/gnu/emacs/EmacsDrawPoint.java
+++ b/java/org/gnu/emacs/EmacsDrawPoint.java
@@ -19,7 +19,7 @@ along with GNU Emacs.  If not, see 
<https://www.gnu.org/licenses/>.  */
 
 package org.gnu.emacs;
 
-public class EmacsDrawPoint
+public final class EmacsDrawPoint
 {
   public static void
   perform (EmacsDrawable drawable,
diff --git a/java/org/gnu/emacs/EmacsDrawRectangle.java 
b/java/org/gnu/emacs/EmacsDrawRectangle.java
index 695a8c6ea44..ce5e94e4a76 100644
--- a/java/org/gnu/emacs/EmacsDrawRectangle.java
+++ b/java/org/gnu/emacs/EmacsDrawRectangle.java
@@ -27,7 +27,7 @@ import android.graphics.RectF;
 
 import android.util.Log;
 
-public class EmacsDrawRectangle
+public final class EmacsDrawRectangle
 {
   public static void
   perform (EmacsDrawable drawable, EmacsGC gc,
diff --git a/java/org/gnu/emacs/EmacsFillPolygon.java 
b/java/org/gnu/emacs/EmacsFillPolygon.java
index 22e2dd0d8a9..d55a0b3aca8 100644
--- a/java/org/gnu/emacs/EmacsFillPolygon.java
+++ b/java/org/gnu/emacs/EmacsFillPolygon.java
@@ -29,7 +29,7 @@ import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.RectF;
 
-public class EmacsFillPolygon
+public final class EmacsFillPolygon
 {
   public static void
   perform (EmacsDrawable drawable, EmacsGC gc, Point points[])
diff --git a/java/org/gnu/emacs/EmacsFillRectangle.java 
b/java/org/gnu/emacs/EmacsFillRectangle.java
index aed0a540c8f..4a0478b446f 100644
--- a/java/org/gnu/emacs/EmacsFillRectangle.java
+++ b/java/org/gnu/emacs/EmacsFillRectangle.java
@@ -26,7 +26,7 @@ import android.graphics.Rect;
 
 import android.util.Log;
 
-public class EmacsFillRectangle
+public final class EmacsFillRectangle
 {
   public static void
   perform (EmacsDrawable drawable, EmacsGC gc,
diff --git a/java/org/gnu/emacs/EmacsGC.java b/java/org/gnu/emacs/EmacsGC.java
index bdc27a1ca5b..a7467cb9bd0 100644
--- a/java/org/gnu/emacs/EmacsGC.java
+++ b/java/org/gnu/emacs/EmacsGC.java
@@ -29,7 +29,7 @@ import android.graphics.Xfermode;
 /* X like graphics context structures.  Keep the enums in synch with
    androidgui.h! */
 
-public class EmacsGC extends EmacsHandleObject
+public final class EmacsGC extends EmacsHandleObject
 {
   public static final int GC_COPY = 0;
   public static final int GC_XOR  = 1;
diff --git a/java/org/gnu/emacs/EmacsInputConnection.java 
b/java/org/gnu/emacs/EmacsInputConnection.java
index 834c2226c82..ed64c368857 100644
--- a/java/org/gnu/emacs/EmacsInputConnection.java
+++ b/java/org/gnu/emacs/EmacsInputConnection.java
@@ -36,7 +36,7 @@ import android.util.Log;
 
    See EmacsEditable for more details.  */
 
-public class EmacsInputConnection extends BaseInputConnection
+public final class EmacsInputConnection extends BaseInputConnection
 {
   private static final String TAG = "EmacsInputConnection";
   private EmacsView view;
@@ -243,6 +243,15 @@ public class EmacsInputConnection extends 
BaseInputConnection
     return super.sendKeyEvent (key);
   }
 
+  @Override
+  public boolean
+  deleteSurroundingTextInCodePoints (int beforeLength, int afterLength)
+  {
+    /* This can be implemented the same way as
+       deleteSurroundingText.  */
+    return this.deleteSurroundingText (beforeLength, afterLength);
+  }
+
 
   /* Override functions which are not implemented.  */
 
diff --git a/java/org/gnu/emacs/EmacsNative.java 
b/java/org/gnu/emacs/EmacsNative.java
index f0917a68120..b1205353090 100644
--- a/java/org/gnu/emacs/EmacsNative.java
+++ b/java/org/gnu/emacs/EmacsNative.java
@@ -25,7 +25,7 @@ import android.content.res.AssetManager;
 import android.view.inputmethod.ExtractedText;
 import android.view.inputmethod.ExtractedTextRequest;
 
-public class EmacsNative
+public final class EmacsNative
 {
   /* List of native libraries that must be loaded during class
      initialization.  */
diff --git a/java/org/gnu/emacs/EmacsNoninteractive.java 
b/java/org/gnu/emacs/EmacsNoninteractive.java
index 30901edb75f..f365037b311 100644
--- a/java/org/gnu/emacs/EmacsNoninteractive.java
+++ b/java/org/gnu/emacs/EmacsNoninteractive.java
@@ -44,7 +44,7 @@ import java.lang.reflect.Method;
    initializes Emacs.  */
 
 @SuppressWarnings ("unchecked")
-public class EmacsNoninteractive
+public final class EmacsNoninteractive
 {
   private static String
   getLibraryDirectory (Context context)
diff --git a/java/org/gnu/emacs/EmacsOpenActivity.java 
b/java/org/gnu/emacs/EmacsOpenActivity.java
index 87ce454a816..fddd5331d2f 100644
--- a/java/org/gnu/emacs/EmacsOpenActivity.java
+++ b/java/org/gnu/emacs/EmacsOpenActivity.java
@@ -68,7 +68,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 
-public class EmacsOpenActivity extends Activity
+public final class EmacsOpenActivity extends Activity
   implements DialogInterface.OnClickListener
 {
   private static final String TAG = "EmacsOpenActivity";
diff --git a/java/org/gnu/emacs/EmacsPixmap.java 
b/java/org/gnu/emacs/EmacsPixmap.java
index a83d8f25542..eb011bc5e65 100644
--- a/java/org/gnu/emacs/EmacsPixmap.java
+++ b/java/org/gnu/emacs/EmacsPixmap.java
@@ -29,7 +29,7 @@ import android.os.Build;
 
 /* Drawable backed by bitmap.  */
 
-public class EmacsPixmap extends EmacsHandleObject
+public final class EmacsPixmap extends EmacsHandleObject
   implements EmacsDrawable
 {
   /* The depth of the bitmap.  This is not actually used, just defined
diff --git a/java/org/gnu/emacs/EmacsPreferencesActivity.java 
b/java/org/gnu/emacs/EmacsPreferencesActivity.java
index 85639fe9236..70934fa4bd4 100644
--- a/java/org/gnu/emacs/EmacsPreferencesActivity.java
+++ b/java/org/gnu/emacs/EmacsPreferencesActivity.java
@@ -42,7 +42,7 @@ import android.preference.*;
    Unfortunately, there is no alternative that looks the same way.  */
 
 @SuppressWarnings ("deprecation")
-public class EmacsPreferencesActivity extends PreferenceActivity
+public final class EmacsPreferencesActivity extends PreferenceActivity
 {
   /* Restart Emacs with -Q.  Call EmacsThread.exit to kill Emacs now, and
      tell the system to EmacsActivity with some parameters later.  */
diff --git a/java/org/gnu/emacs/EmacsSdk11Clipboard.java 
b/java/org/gnu/emacs/EmacsSdk11Clipboard.java
index ea35a463299..a05184513cd 100644
--- a/java/org/gnu/emacs/EmacsSdk11Clipboard.java
+++ b/java/org/gnu/emacs/EmacsSdk11Clipboard.java
@@ -32,7 +32,7 @@ import java.io.UnsupportedEncodingException;
 /* This class implements EmacsClipboard for Android 3.0 and later
    systems.  */
 
-public class EmacsSdk11Clipboard extends EmacsClipboard
+public final class EmacsSdk11Clipboard extends EmacsClipboard
   implements ClipboardManager.OnPrimaryClipChangedListener
 {
   private static final String TAG = "EmacsSdk11Clipboard";
diff --git a/java/org/gnu/emacs/EmacsSdk23FontDriver.java 
b/java/org/gnu/emacs/EmacsSdk23FontDriver.java
index 11e128d5769..aaba8dbd166 100644
--- a/java/org/gnu/emacs/EmacsSdk23FontDriver.java
+++ b/java/org/gnu/emacs/EmacsSdk23FontDriver.java
@@ -22,7 +22,7 @@ package org.gnu.emacs;
 import android.graphics.Paint;
 import android.graphics.Rect;
 
-public class EmacsSdk23FontDriver extends EmacsSdk7FontDriver
+public final class EmacsSdk23FontDriver extends EmacsSdk7FontDriver
 {
   private void
   textExtents1 (Sdk7FontObject font, int code, FontMetrics metrics,
diff --git a/java/org/gnu/emacs/EmacsSdk8Clipboard.java 
b/java/org/gnu/emacs/EmacsSdk8Clipboard.java
index 34e66912562..818a722a908 100644
--- a/java/org/gnu/emacs/EmacsSdk8Clipboard.java
+++ b/java/org/gnu/emacs/EmacsSdk8Clipboard.java
@@ -31,7 +31,7 @@ import java.io.UnsupportedEncodingException;
    similarly old systems.  */
 
 @SuppressWarnings ("deprecation")
-public class EmacsSdk8Clipboard extends EmacsClipboard
+public final class EmacsSdk8Clipboard extends EmacsClipboard
 {
   private static final String TAG = "EmacsSdk8Clipboard";
   private ClipboardManager manager;
diff --git a/java/org/gnu/emacs/EmacsService.java 
b/java/org/gnu/emacs/EmacsService.java
index 7f4f75b5147..e61d9487375 100644
--- a/java/org/gnu/emacs/EmacsService.java
+++ b/java/org/gnu/emacs/EmacsService.java
@@ -82,7 +82,7 @@ class Holder<T>
 /* EmacsService is the service that starts the thread running Emacs
    and handles requests by that Emacs instance.  */
 
-public class EmacsService extends Service
+public final class EmacsService extends Service
 {
   public static final String TAG = "EmacsService";
   public static final int MAX_PENDING_REQUESTS = 256;
diff --git a/java/org/gnu/emacs/EmacsSurfaceView.java 
b/java/org/gnu/emacs/EmacsSurfaceView.java
index 62e927094e4..e0411f7f8b3 100644
--- a/java/org/gnu/emacs/EmacsSurfaceView.java
+++ b/java/org/gnu/emacs/EmacsSurfaceView.java
@@ -35,7 +35,7 @@ import java.lang.ref.WeakReference;
    own back buffers, which use too much memory (up to 96 MB for a
    single frame.) */
 
-public class EmacsSurfaceView extends View
+public final class EmacsSurfaceView extends View
 {
   private static final String TAG = "EmacsSurfaceView";
   private EmacsView view;
diff --git a/java/org/gnu/emacs/EmacsView.java 
b/java/org/gnu/emacs/EmacsView.java
index 89f526853b2..d2330494bc7 100644
--- a/java/org/gnu/emacs/EmacsView.java
+++ b/java/org/gnu/emacs/EmacsView.java
@@ -51,7 +51,7 @@ import android.util.Log;
 
    It is also a ViewGroup, as it also lays out children.  */
 
-public class EmacsView extends ViewGroup
+public final class EmacsView extends ViewGroup
 {
   public static final String TAG = "EmacsView";
 
diff --git a/java/org/gnu/emacs/EmacsWindow.java 
b/java/org/gnu/emacs/EmacsWindow.java
index 90fc4c44198..007a2a86e68 100644
--- a/java/org/gnu/emacs/EmacsWindow.java
+++ b/java/org/gnu/emacs/EmacsWindow.java
@@ -59,7 +59,7 @@ import android.os.Build;
    Views are also drawables, meaning they can accept drawing
    requests.  */
 
-public class EmacsWindow extends EmacsHandleObject
+public final class EmacsWindow extends EmacsHandleObject
   implements EmacsDrawable
 {
   private static final String TAG = "EmacsWindow";
diff --git a/java/org/gnu/emacs/EmacsWindowAttachmentManager.java 
b/java/org/gnu/emacs/EmacsWindowAttachmentManager.java
index 510300571b8..1548bf28087 100644
--- a/java/org/gnu/emacs/EmacsWindowAttachmentManager.java
+++ b/java/org/gnu/emacs/EmacsWindowAttachmentManager.java
@@ -50,7 +50,7 @@ import android.util.Log;
    Finally, every time a window is removed, the consumer is
    destroyed.  */
 
-public class EmacsWindowAttachmentManager
+public final class EmacsWindowAttachmentManager
 {
   public static EmacsWindowAttachmentManager MANAGER;
   private final static String TAG = "EmacsWindowAttachmentManager";