8154816: Caps Lock doesn't work as expected when using Pinyin Simplified input method

Reviewed-by: ssadetsky, alexp
diff --git a/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java b/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java
index 591c16d..804d2d0 100644
--- a/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java
+++ b/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformResponder.java
@@ -34,6 +34,7 @@
 import java.awt.event.InputEvent;
 import java.awt.event.MouseWheelEvent;
 import java.awt.event.KeyEvent;
+import java.util.Locale;
 
 /**
  * Translates NSEvents/NPCocoaEvents into AWT events.
@@ -171,6 +172,16 @@
                 }
             }
 
+            // If Pinyin Simplified input method is selected, CAPS_LOCK key is supposed to switch
+            // input to latin letters.
+            // It is necessary to use testCharIgnoringModifiers instead of testChar for event
+            // generation in such case to avoid uppercase letters in text components.
+            LWCToolkit lwcToolkit = (LWCToolkit)Toolkit.getDefaultToolkit();
+            if (lwcToolkit.getLockingKeyState(KeyEvent.VK_CAPS_LOCK) &&
+                    Locale.SIMPLIFIED_CHINESE.equals(lwcToolkit.getDefaultKeyboardLocale())) {
+                testChar = testCharIgnoringModifiers;
+            }
+
             jkeyCode = out[0];
             jkeyLocation = out[1];
             jeventType = isNpapiCallback ? NSEvent.npToJavaEventType(eventType) :
diff --git a/jdk/test/java/awt/im/8154816/bug8154816.html b/jdk/test/java/awt/im/8154816/bug8154816.html
new file mode 100644
index 0000000..1fdb5fd
--- /dev/null
+++ b/jdk/test/java/awt/im/8154816/bug8154816.html
@@ -0,0 +1,39 @@
+<!--
+ Copyright (c) 2016, 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
+ under the terms of the GNU General Public License version 2 only, as
+ published by the Free Software Foundation.
+
+ This code is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ version 2 for more details (a copy is included in the LICENSE file that
+ accompanied this code).
+
+ You should have received a copy of the GNU General Public License version
+ 2 along with this work; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ or visit www.oracle.com if you need additional information or have any
+ questions.
+-->
+
+<html>
+<body>
+Verify that Caps Lock key works properly with Pinyin input method, (i.e. if 
+Caps Lock is pressed, input should be swithced to lowercase latin letters).
+
+This test is for OS X only. For other platforms please simply press "Pass".
+
+1. Go to "System Preferences -> Keyboard -> Input Sources" and add "Pinyin – Traditional" or "Pinyin – Simplified" IM from Chinese language group.
+2. Set current IM to "Pinyin".
+3. Set focus to the text field of the test and press Caps Lock key on the keyboard.
+4. Press "a" character on the keyboard
+5. If "a" character is displayed in the text field, press "Pass", if "A" character is displayed, press "Fail".
+
+<applet  code="bug8154816.class" width=400 height=400></applet>
+</body>
+</html>
diff --git a/jdk/test/java/awt/im/8154816/bug8154816.java b/jdk/test/java/awt/im/8154816/bug8154816.java
new file mode 100644
index 0000000..b3bda4f
--- /dev/null
+++ b/jdk/test/java/awt/im/8154816/bug8154816.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2016, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @test
+ * @bug 8154816
+ * @summary Caps Lock doesn't work as expected when using Pinyin Simplified input method
+ * @author Dmitry Markov
+ * @run applet/manual=yesno bug8154816.html
+ */
+
+import javax.swing.*;
+
+public class bug8154816 extends JApplet {
+    @Override
+    public void init() {
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                JPanel panel = new JPanel();
+                panel.add(new JLabel("Text field:"));
+                panel.add(new JTextField(20));
+                add(panel);
+            }
+        });
+    }
+}
+