[java] Fixing deprecation for IME

[skip ci]

Author: diemol

java/src/org/openqa/selenium/ImeActivationFailedException.java

@@ -22,6 +22,7 @@
  *
  * @deprecated Will be removed. IME is not part of W3C WebDriver and does not work on browsers.
  */
+@Deprecated
 public class ImeActivationFailedException extends WebDriverException {
   public ImeActivationFailedException(String message) {
     super(message);

java/src/org/openqa/selenium/ImeNotAvailableException.java

@@ -23,7 +23,7 @@
  *
  * @deprecated Will be removed. IME is not part of W3C WebDriver and does not work on browsers.
  */
-
+@Deprecated
 public class ImeNotAvailableException extends WebDriverException {
   public ImeNotAvailableException(String message) {
     super(message);

java/src/org/openqa/selenium/WebDriver.java

@@ -279,6 +279,7 @@ interface Options {
      * @return the interface for controlling IME engines to generate complex-script input.
      * @deprecated Will be removed. IME is not part of W3C WebDriver and does not work on browsers.
      */
+    @Deprecated
     ImeHandler ime();
 
     /**
@@ -637,6 +638,7 @@ interface Navigation {
    * @deprecated Will be removed. IME is not part of W3C WebDriver and does not work on browsers.
    * An interface for managing input methods.
    */
+  @Deprecated
   interface ImeHandler {
     /**
      * All available engines on the machine. To use an engine, it has to be activated.

java/src/org/openqa/selenium/remote/RemoteWebDriver.java

@@ -853,6 +853,7 @@ public Window window() {
     /**
      * @deprecated Will be removed. IME is not part of W3C WebDriver and does not work on browsers.
      */
+    @Deprecated
     protected class RemoteInputMethodManager implements WebDriver.ImeHandler {
 
       @Override