8029893: Remove reflection from DataTransferer.getInstance

Reviewed-by: anthony, serb

src/macosx/classes/sun/lwawt/macosx/CDataTransferer.java

@@ -89,7 +89,7 @@ public class CDataTransferer extends DataTransferer {
 
     private static CDataTransferer fTransferer;
 
-    public static synchronized CDataTransferer getInstanceImpl() {
+    static synchronized CDataTransferer getInstanceImpl() {
         if (fTransferer == null) {
             fTransferer = new CDataTransferer();
         }

src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java

 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -42,6 +42,7 @@ import java.util.concurrent.Callable;
 import java.net.MalformedURLException;
 
 import sun.awt.*;
+import sun.awt.datatransfer.DataTransferer;
 import sun.lwawt.*;
 import sun.lwawt.LWWindowPeer.PeerType;
 import sun.security.action.GetBooleanAction;
@@ -112,8 +113,6 @@ public final class LWCToolkit extends LWToolkit {
     private static final boolean inAWT;
 
     public LWCToolkit() {
-        SunToolkit.setDataTransfererClassName("sun.lwawt.macosx.CDataTransferer");
-
         areExtraMouseButtonsEnabled = Boolean.parseBoolean(System.getProperty("sun.awt.enableExtraMouseButtons", "true"));
         //set system property if not yet assigned
         System.setProperty("sun.awt.enableExtraMouseButtons", ""+areExtraMouseButtonsEnabled);
@@ -441,6 +440,11 @@ public final class LWCToolkit extends LWToolkit {
         return true;
     }
 
+    @Override
+    public DataTransferer getDataTransferer() {
+        return CDataTransferer.getInstanceImpl();
+    }
+
     @Override
     public boolean isAlwaysOnTopSupported() {
         return true;

src/share/classes/java/awt/datatransfer/DataFlavor.java

 /*
- * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -570,7 +570,7 @@ public class DataFlavor implements Externalizable, Cloneable {
         if (DataTransferer.isFlavorCharsetTextType(this) &&
             (isRepresentationClassInputStream() ||
              isRepresentationClassByteBuffer() ||
-             DataTransferer.byteArrayClass.equals(representationClass)))
+             byte[].class.equals(representationClass)))
         {
             params += ";charset=" + DataTransferer.getTextCharset(this);
         }
@@ -1015,7 +1015,7 @@ public class DataFlavor implements Externalizable, Cloneable {
                     !(isRepresentationClassReader() ||
                         String.class.equals(representationClass) ||
                         isRepresentationClassCharBuffer() ||
-                        DataTransferer.charArrayClass.equals(representationClass)))
+                        char[].class.equals(representationClass)))
                 {
                     String thisCharset =
                         DataTransferer.canonicalName(getParameter("charset"));
@@ -1100,8 +1100,7 @@ public class DataFlavor implements Externalizable, Cloneable {
                 !(isRepresentationClassReader() ||
                   String.class.equals(representationClass) ||
                   isRepresentationClassCharBuffer() ||
-                  DataTransferer.charArrayClass.equals
-                  (representationClass)))
+                  char[].class.equals(representationClass)))
             {
                 String charset =
                     DataTransferer.canonicalName(getParameter("charset"));

src/share/classes/sun/awt/HToolkit.java

 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,6 +25,8 @@
 
 package sun.awt;
 
+import sun.awt.datatransfer.DataTransferer;
+
 import java.awt.*;
 import java.awt.dnd.*;
 import java.awt.dnd.peer.DragSourceContextPeer;
@@ -184,6 +186,11 @@ public class HToolkit extends SunToolkit
         return false;
     }
 
+    @Override
+    public DataTransferer getDataTransferer() {
+        return null;
+    }
+
     public GlobalCursorManager getGlobalCursorManager()
         throws HeadlessException {
         throw new HeadlessException();

src/share/classes/sun/awt/SunToolkit.java

 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -46,6 +46,7 @@ import java.util.concurrent.locks.Condition;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 
+import sun.awt.datatransfer.DataTransferer;
 import sun.security.util.SecurityConstants;
 import sun.util.logging.PlatformLogger;
 import sun.misc.SoftCache;
@@ -203,6 +204,8 @@ public abstract class SunToolkit extends Toolkit
 
     public abstract boolean isTraySupported();
 
+    public abstract DataTransferer getDataTransferer();
+
     @SuppressWarnings("deprecation")
     public abstract FontPeer getFontPeer(String name, int style);
 
@@ -1191,19 +1194,6 @@ public abstract class SunToolkit extends Toolkit
         return getStartupLocale();
     }
 
-    private static String dataTransfererClassName = null;
-
-    protected static void setDataTransfererClassName(String className) {
-        dataTransfererClassName = className;
-    }
-
-    public static String getDataTransfererClassName() {
-        if (dataTransfererClassName == null) {
-            Toolkit.getDefaultToolkit(); // transferer set during toolkit init
-        }
-        return dataTransfererClassName;
-    }
-
     // Support for window closing event notifications
     private transient WindowClosingListener windowClosingListener = null;
     /**

src/share/classes/sun/awt/datatransfer/DataTransferer.java

 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,10 +25,10 @@
 
 package sun.awt.datatransfer;
 
-import java.awt.AWTError;
 import java.awt.EventQueue;
-import java.awt.Image;
 import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.Toolkit;
 
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.FlavorMap;
@@ -137,16 +137,6 @@ import java.io.FilePermission;
  */
 public abstract class DataTransferer {
 
-    /**
-     * Cached value of Class.forName("[C");
-     */
-    public static final Class charArrayClass;
-
-    /**
-     * Cached value of Class.forName("[B");
-     */
-    public static final Class byteArrayClass;
-
     /**
      * The <code>DataFlavor</code> representing plain text with Unicode
      * encoding, where:
@@ -241,15 +231,6 @@ public abstract class DataTransferer {
     private static final PlatformLogger dtLog = PlatformLogger.getLogger("sun.awt.datatransfer.DataTransfer");
 
     static {
-        Class tCharArrayClass = null, tByteArrayClass = null;
-        try {
-            tCharArrayClass = Class.forName("[C");
-            tByteArrayClass = Class.forName("[B");
-        } catch (ClassNotFoundException cannotHappen) {
-        }
-        charArrayClass = tCharArrayClass;
-        byteArrayClass = tByteArrayClass;
-
         DataFlavor tPlainTextStringFlavor = null;
         try {
             tPlainTextStringFlavor = new DataFlavor
@@ -290,63 +271,8 @@ public abstract class DataTransferer {
      * that in a headless environment, there may be no DataTransferer instance;
      * instead, null will be returned.
      */
-    public static DataTransferer getInstance() {
-        synchronized (DataTransferer.class) {
-            if (transferer == null) {
-                final String name = SunToolkit.getDataTransfererClassName();
-                if (name != null) {
-                    PrivilegedAction<DataTransferer> action = new PrivilegedAction<DataTransferer>()
-                    {
-                      public DataTransferer run() {
-                          Class cls = null;
-                          Method method = null;
-                          DataTransferer ret = null;
-
-                          try {
-                              cls = Class.forName(name);
-                          } catch (ClassNotFoundException e) {
-                              ClassLoader cl = ClassLoader.
-                                  getSystemClassLoader();
-                              if (cl != null) {
-                                  try {
-                                      cls = cl.loadClass(name);
-                                  } catch (ClassNotFoundException ee) {
-                                      ee.printStackTrace();
-                                      throw new AWTError("DataTransferer not found: " + name);
-                                  }
-                              }
-                          }
-                          if (cls != null) {
-                              try {
-                                  method = cls.getDeclaredMethod("getInstanceImpl");
-                                  method.setAccessible(true);
-                              } catch (NoSuchMethodException e) {
-                                  e.printStackTrace();
-                                  throw new AWTError("Cannot instantiate DataTransferer: " + name);
-                              } catch (SecurityException e) {
-                                  e.printStackTrace();
-                                  throw new AWTError("Access is denied for DataTransferer: " + name);
-                              }
-                          }
-                          if (method != null) {
-                              try {
-                                  ret = (DataTransferer) method.invoke(null);
-                              } catch (InvocationTargetException e) {
-                                  e.printStackTrace();
-                                  throw new AWTError("Cannot instantiate DataTransferer: " + name);
-                              } catch (IllegalAccessException e) {
-                                  e.printStackTrace();
-                                  throw new AWTError("Cannot access DataTransferer: " + name);
-                              }
-                          }
-                          return ret;
-                      }
-                    };
-                    transferer = AccessController.doPrivileged(action);
-                }
-            }
-        }
-        return transferer;
+    public static synchronized DataTransferer getInstance() {
+        return ((SunToolkit) Toolkit.getDefaultToolkit()).getDataTransferer();
     }
 
     /**
@@ -459,14 +385,14 @@ public abstract class DataTransferer {
         if (flavor.isRepresentationClassReader() ||
             String.class.equals(rep_class) ||
             flavor.isRepresentationClassCharBuffer() ||
-            DataTransferer.charArrayClass.equals(rep_class))
+            char[].class.equals(rep_class))
         {
             return true;
         }
 
         if (!(flavor.isRepresentationClassInputStream() ||
               flavor.isRepresentationClassByteBuffer() ||
-              DataTransferer.byteArrayClass.equals(rep_class))) {
+              byte[].class.equals(rep_class))) {
             return false;
         }
 
@@ -490,8 +416,7 @@ public abstract class DataTransferer {
 
         return (flavor.isRepresentationClassInputStream() ||
                 flavor.isRepresentationClassByteBuffer() ||
-                DataTransferer.byteArrayClass.
-                    equals(flavor.getRepresentationClass()));
+                byte[].class.equals(flavor.getRepresentationClass()));
     }
 
     /**
@@ -1243,7 +1168,7 @@ search:
                 format);
 
         // Source data is a char array. Convert to a String and recur.
-        } else if (charArrayClass.equals(flavor.getRepresentationClass())) {
+        } else if (char[].class.equals(flavor.getRepresentationClass())) {
             if (!(isFlavorCharsetTextType(flavor) && isTextFormat(format))) {
                 throw new IOException
                     ("cannot transfer non-text data as char array");
@@ -1274,7 +1199,7 @@ search:
         // Source data is a byte array. For arbitrary flavors, simply return
         // the array. For text flavors, decode back to a String and recur to
         // reencode according to the requested format.
-        } else if (byteArrayClass.equals(flavor.getRepresentationClass())) {
+        } else if (byte[].class.equals(flavor.getRepresentationClass())) {
             byte[] bytes = (byte[])obj;
 
             if (isFlavorCharsetTextType(flavor) && isTextFormat(format)) {
@@ -1651,7 +1576,7 @@ search:
 
             // Target data is a char array. Recur to obtain String and convert to
             // char array.
-        } else if (charArrayClass.equals(flavor.getRepresentationClass())) {
+        } else if (char[].class.equals(flavor.getRepresentationClass())) {
             if (!(isFlavorCharsetTextType(flavor) && isTextFormat(format))) {
                 throw new IOException
                           ("cannot transfer non-text data as char array");
@@ -1679,7 +1604,7 @@ search:
             // the raw bytes. For text flavors, convert to a String to strip
             // terminators and search-and-replace EOLN, then reencode according to
             // the requested flavor.
-        } else if (byteArrayClass.equals(flavor.getRepresentationClass())) {
+        } else if (byte[].class.equals(flavor.getRepresentationClass())) {
             if (isFlavorCharsetTextType(flavor) && isTextFormat(format)) {
                 theObject = translateBytesToString(
                     bytes, format, localeTransferable
@@ -1807,7 +1732,7 @@ search:
 
             theObject = constructFlavoredObject(reader, flavor, Reader.class);
             // Target data is a byte array
-        } else if (byteArrayClass.equals(flavor.getRepresentationClass())) {
+        } else if (byte[].class.equals(flavor.getRepresentationClass())) {
             if(isFlavorCharsetTextType(flavor) && isTextFormat(format)) {
                 theObject = translateBytesToString(inputStreamToByteArray(str), format, localeTransferable)
                         .getBytes(DataTransferer.getTextCharset(flavor));
@@ -2857,7 +2782,7 @@ search:
                 HashMap decodedTextRepresentationsMap = new HashMap(4, 1.0f);
 
                 decodedTextRepresentationsMap.put
-                    (DataTransferer.charArrayClass, Integer.valueOf(0));
+                    (char[].class, Integer.valueOf(0));
                 decodedTextRepresentationsMap.put
                     (java.nio.CharBuffer.class, Integer.valueOf(1));
                 decodedTextRepresentationsMap.put
@@ -2873,7 +2798,7 @@ search:
                 HashMap encodedTextRepresentationsMap = new HashMap(3, 1.0f);
 
                 encodedTextRepresentationsMap.put
-                    (DataTransferer.byteArrayClass, Integer.valueOf(0));
+                    (byte[].class, Integer.valueOf(0));
                 encodedTextRepresentationsMap.put
                     (java.nio.ByteBuffer.class, Integer.valueOf(1));
                 encodedTextRepresentationsMap.put

src/solaris/classes/sun/awt/X11/XDataTransferer.java

 /*
- * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -77,11 +77,9 @@ public class XDataTransferer extends DataTransferer {
 
     private static XDataTransferer transferer;
 
-    static XDataTransferer getInstanceImpl() {
-        synchronized (XDataTransferer.class) {
-            if (transferer == null) {
-                transferer = new XDataTransferer();
-            }
+    static synchronized XDataTransferer getInstanceImpl() {
+        if (transferer == null) {
+            transferer = new XDataTransferer();
         }
         return transferer;
     }
@@ -411,7 +409,7 @@ public class XDataTransferer extends DataTransferer {
         if (df.getRepresentationClass() != null &&
             (df.isRepresentationClassInputStream() ||
              df.isRepresentationClassByteBuffer() ||
-             byteArrayClass.equals(df.getRepresentationClass()))) {
+             byte[].class.equals(df.getRepresentationClass()))) {
             natives.add(mimeType);
         }
 

src/solaris/classes/sun/awt/X11/XToolkit.java

 /*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -47,6 +47,7 @@ import java.util.*;
 import javax.swing.LookAndFeel;
 import javax.swing.UIDefaults;
 import sun.awt.*;
+import sun.awt.datatransfer.DataTransferer;
 import sun.font.FontConfigManager;
 import sun.java2d.SunGraphicsEnvironment;
 import sun.misc.PerformanceLogger;
@@ -300,8 +301,6 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
         return awtAppClassName;
     }
 
-    static final String DATA_TRANSFERER_CLASS_NAME = "sun.awt.X11.XDataTransferer";
-
     public XToolkit() {
         super();
         if (PerformanceLogger.loggingEnabled()) {
@@ -323,7 +322,6 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
 
             init();
             XWM.init();
-            SunToolkit.setDataTransfererClassName(DATA_TRANSFERER_CLASS_NAME);
 
             PrivilegedAction<Thread> action = new PrivilegedAction() {
                 public Thread run() {
@@ -1125,6 +1123,11 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
         return false;
     }
 
+    @Override
+    public DataTransferer getDataTransferer() {
+        return XDataTransferer.getInstanceImpl();
+    }
+
     /**
      * Returns the supported cursor size
      */

src/windows/classes/sun/awt/windows/WDataTransferer.java

 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -159,13 +159,9 @@ public class WDataTransferer extends DataTransferer {
 
     private static WDataTransferer transferer;
 
-    public static WDataTransferer getInstanceImpl() {
+    static synchronized WDataTransferer getInstanceImpl() {
         if (transferer == null) {
-            synchronized (WDataTransferer.class) {
-                if (transferer == null) {
-                    transferer = new WDataTransferer();
-                }
-            }
+            transferer = new WDataTransferer();
         }
         return transferer;
     }

src/windows/classes/sun/awt/windows/WToolkit.java

 /*
- * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -41,6 +41,7 @@ import sun.awt.LightweightFrame;
 import sun.awt.SunToolkit;
 import sun.awt.Win32GraphicsDevice;
 import sun.awt.Win32GraphicsEnvironment;
+import sun.awt.datatransfer.DataTransferer;
 import sun.java2d.d3d.D3DRenderQueue;
 import sun.java2d.opengl.OGLRenderQueue;
 
@@ -210,8 +211,6 @@ public class WToolkit extends SunToolkit implements Runnable {
      */
     public native void embeddedEventLoopIdleProcessing();
 
-    public static final String DATA_TRANSFERER_CLASS_NAME = "sun.awt.windows.WDataTransferer";
-
     static class ToolkitDisposer implements sun.java2d.DisposerRecord {
         public void dispose() {
             WToolkit.postDispose();
@@ -255,8 +254,6 @@ public class WToolkit extends SunToolkit implements Runnable {
             // swallow the exception
         }
 
-        SunToolkit.setDataTransfererClassName(DATA_TRANSFERER_CLASS_NAME);
-
         // Enabled "live resizing" by default.  It remains controlled
         // by the native system though.
         setDynamicLayout(true);
@@ -514,6 +511,11 @@ public class WToolkit extends SunToolkit implements Runnable {
         return true;
     }
 
+    @Override
+    public DataTransferer getDataTransferer() {
+        return WDataTransferer.getInstanceImpl();
+    }
+
     public KeyboardFocusManagerPeer getKeyboardFocusManagerPeer()
       throws HeadlessException
     {