Remove a slew of Eclipse warnings.

Change-Id: I03236386aea13fbd4fb8eaeee18e0008aa136502

java/src/com/android/inputmethod/keyboard/KeyboardView.java

@@ -873,6 +873,7 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
                 keyPreview, ViewLayoutUtils.newLayoutParam(mPreviewPlacer, 0, 0));
     }
 
+    @SuppressWarnings("deprecation") // setBackgroundDrawable is replaced by setBackground in API16
     @Override
     public void showKeyPreview(PointerTracker tracker) {
         if (!mShowKeyPreviewPopup) return;

java/src/com/android/inputmethod/keyboard/internal/KeyboardState.java

@@ -21,8 +21,6 @@ import android.util.Log;
 
 import com.android.inputmethod.keyboard.Keyboard;
 import com.android.inputmethod.latin.Constants;
-import com.android.inputmethod.latin.ResearchLogger;
-import com.android.inputmethod.latin.define.ProductionFlag;
 
 /**
  * Keyboard state machine.

java/src/com/android/inputmethod/latin/ExpandableDictionary.java

@@ -514,8 +514,10 @@ public class ExpandableDictionary extends Dictionary {
 
     /**
      * Adds bigrams to the in-memory trie structure that is being used to retrieve any word
+     * @param word1 the first word of this bigram
+     * @param word2 the second word of this bigram
      * @param frequency frequency for this bigram
-     * @param addFrequency if true, it adds to current frequency, else it overwrites the old value
+     * @param fcp an instance of ForgettingCurveParams to use for decay policy
      * @return returns the final bigram frequency
      */
     private int setBigramAndGetFrequency(

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -747,6 +747,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
     }
 
+    @Override
     public void onTargetApplicationKnown(final ApplicationInfo info) {
         mTargetApplicationInfo = info;
     }

java/src/com/android/inputmethod/latin/ResearchLogger.java

@@ -101,13 +101,13 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     private static class NullOutputStream extends OutputStream {
         /** {@inheritDoc} */
         @Override
-        public void write(byte[] buffer, int offset, int count) throws IOException {
+        public void write(byte[] buffer, int offset, int count) {
             // nop
         }
 
         /** {@inheritDoc} */
         @Override
-        public void write(byte[] buffer) throws IOException {
+        public void write(byte[] buffer) {
             // nop
         }
 

java/src/com/android/inputmethod/latin/SettingsValues.java

@@ -29,7 +29,6 @@ import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
-import java.util.Map;
 
 /**
  * When you call the constructor of this class, you may want to change the current system locale by

java/src/com/android/inputmethod/latin/UserHistoryDictionary.java

@@ -440,7 +440,7 @@ public class UserHistoryDictionary extends ExpandableDictionary {
                             if (nw != null) {
                                 final ForgettingCurveParams fcp = nw.getFcParams();
                                 final byte prevFc = word1Bigrams.get(word2);
-                                final byte fc = (byte)fcp.getFc();
+                                final byte fc = fcp.getFc();
                                 final boolean isValid = fcp.isValid();
                                 if (prevFc > 0 && prevFc == fc) {
                                     // No need to update since we found no changes for this entry.

java/src/com/android/inputmethod/latin/UserHistoryForgettingCurveUtils.java

@@ -50,7 +50,7 @@ public class UserHistoryForgettingCurveUtils {
         }
 
         private ForgettingCurveParams(long now, boolean isValid) {
-            this((int)pushCount((byte)0, isValid), now, now, isValid);
+            this(pushCount((byte)0, isValid), now, now, isValid);
         }
 
         /** This constructor is called when the user history bigram dictionary is being restored. */
@@ -201,7 +201,7 @@ public class UserHistoryForgettingCurveUtils {
             for (int i = 0; i < FC_LEVEL_MAX; ++i) {
                 final double initialFreq;
                 if (i >= 2) {
-                    initialFreq = (double)FC_FREQ_MAX;
+                    initialFreq = FC_FREQ_MAX;
                 } else if (i == 1) {
                     initialFreq = (double)FC_FREQ_MAX / 2;
                 } else if (i == 0) {

java/src/com/android/inputmethod/latin/Utils.java

@@ -44,10 +44,8 @@ import java.io.IOException;
 import java.io.PrintWriter;
 import java.nio.channels.FileChannel;
 import java.text.SimpleDateFormat;
-import java.util.Collections;
 import java.util.Date;
 import java.util.HashMap;
-import java.util.Map;
 
 public class Utils {
     private Utils() {

java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java

@@ -788,7 +788,7 @@ public class BinaryDictInputOutput {
         // which is the best approximation. This is how we get the most precise result with
         // only four bits.
         final double stepSize =
-                (double)(MAX_TERMINAL_FREQUENCY - unigramFrequency) / (1.5 + MAX_BIGRAM_FREQUENCY);
+                (MAX_TERMINAL_FREQUENCY - unigramFrequency) / (1.5 + MAX_BIGRAM_FREQUENCY);
         final double firstStepStart = 1 + unigramFrequency + (stepSize / 2.0);
         final int discretizedFrequency = (int)((bigramFrequency - firstStepStart) / stepSize);
         // If the bigram freq is less than half-a-step higher than the unigram freq, we get -1