Use Java 7 diamond operator

Change-Id: If16ef50ae73147594615d0f49d6a22621eaf1aef

19 files changed, 33 insertions, 48 deletions

diff --git a/tools/dicttool/Android.mk b/tools/dicttool/Android.mk
index 10104cf33..a3698bdd1 100644
--- a/tools/dicttool/Android.mk
+++ b/tools/dicttool/Android.mk
@@ -49,7 +49,6 @@ LATINIME_SRC_FILES_FOR_DICTTOOL := \
         latin/WordComposer.java \
         latin/settings/NativeSuggestOptions.java \
         latin/utils/BinaryDictionaryUtils.java \
-        latin/utils/CollectionUtils.java \
         latin/utils/CombinedFormatUtils.java \
         latin/utils/CoordinateUtils.java \
         latin/utils/FileUtils.java \
diff --git a/tools/dicttool/compat/android/util/SparseArray.java b/tools/dicttool/compat/android/util/SparseArray.java
index 6c76f19f4..9efbd39c7 100644
--- a/tools/dicttool/compat/android/util/SparseArray.java
+++ b/tools/dicttool/compat/android/util/SparseArray.java
@@ -16,8 +16,6 @@
 
 package android.util;
 
-import com.android.inputmethod.latin.utils.CollectionUtils;
-
 import java.util.ArrayList;
 import java.util.Collections;
 
@@ -30,8 +28,8 @@ public class SparseArray<E> {
     }
 
     public SparseArray(final int initialCapacity) {
-        mKeys = CollectionUtils.newArrayList(initialCapacity);
-        mValues = CollectionUtils.newArrayList(initialCapacity);
+        mKeys = new ArrayList<>(initialCapacity);
+        mValues = new ArrayList<>(initialCapacity);
     }
 
     public int size() {
diff --git a/tools/dicttool/compat/android/util/SparseIntArray.java b/tools/dicttool/compat/android/util/SparseIntArray.java
index ac8a04ceb..e4d3dfd07 100644
--- a/tools/dicttool/compat/android/util/SparseIntArray.java
+++ b/tools/dicttool/compat/android/util/SparseIntArray.java
@@ -24,7 +24,7 @@ public class SparseIntArray {
     }
 
     public SparseIntArray(final int initialCapacity) {
-        mArray = new SparseArray<Integer>(initialCapacity);
+        mArray = new SparseArray<>(initialCapacity);
     }
 
     public int size() {
diff --git a/tools/dicttool/compat/com/android/inputmethod/event/CombinerChain.java b/tools/dicttool/compat/com/android/inputmethod/event/CombinerChain.java
index 538d759c8..458f22c45 100644
--- a/tools/dicttool/compat/com/android/inputmethod/event/CombinerChain.java
+++ b/tools/dicttool/compat/com/android/inputmethod/event/CombinerChain.java
@@ -16,8 +16,6 @@
 
 package com.android.inputmethod.event;
 
-import com.android.inputmethod.latin.utils.CollectionUtils;
-
 import java.util.ArrayList;
 
 /**
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
index f9771c8dd..2cbc04154 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
@@ -19,15 +19,14 @@ package com.android.inputmethod.latin.dicttool;
 import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils;
 import com.android.inputmethod.latin.makedict.BinaryDictIOUtils;
 import com.android.inputmethod.latin.makedict.DictDecoder;
-import com.android.inputmethod.latin.makedict.FormatSpec;
 import com.android.inputmethod.latin.makedict.FusionDictionary;
 import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
 
 import org.xml.sax.SAXException;
 
-import java.io.File;
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
+import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
@@ -54,7 +53,7 @@ public final class BinaryDictOffdeviceUtils {
     private final static int MAX_DECODE_DEPTH = 8;
 
     public static class DecoderChainSpec {
-        ArrayList<String> mDecoderSpec = new ArrayList<String>();
+        ArrayList<String> mDecoderSpec = new ArrayList<>();
         File mFile;
         public DecoderChainSpec addStep(final String stepDescription) {
             mDecoderSpec.add(stepDescription);
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
index 391328fda..6a0e1b7f0 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
@@ -98,7 +98,7 @@ public class CombinedInputOutput {
             headerLine = reader.readLine();
         }
         final String header[] = headerLine.split(",");
-        final HashMap<String, String> attributes = new HashMap<String, String>();
+        final HashMap<String, String> attributes = new HashMap<>();
         for (String item : header) {
             final String keyValue[] = item.split("=");
             if (2 != keyValue.length) {
@@ -115,8 +115,8 @@ public class CombinedInputOutput {
         String word = null;
         ProbabilityInfo probabilityInfo = new ProbabilityInfo(0);
         boolean isNotAWord = false;
-        ArrayList<WeightedString> bigrams = new ArrayList<WeightedString>();
-        ArrayList<WeightedString> shortcuts = new ArrayList<WeightedString>();
+        ArrayList<WeightedString> bigrams = new ArrayList<>();
+        ArrayList<WeightedString> shortcuts = new ArrayList<>();
         while (null != (line = reader.readLine())) {
             if (line.startsWith(COMMENT_LINE_STARTER)) continue;
             final String args[] = line.trim().split(",");
@@ -128,8 +128,8 @@ public class CombinedInputOutput {
                         dict.setBigram(word, s.mWord, s.mProbabilityInfo);
                     }
                 }
-                if (!shortcuts.isEmpty()) shortcuts = new ArrayList<WeightedString>();
-                if (!bigrams.isEmpty()) bigrams = new ArrayList<WeightedString>();
+                if (!shortcuts.isEmpty()) shortcuts = new ArrayList<>();
+                if (!bigrams.isEmpty()) bigrams = new ArrayList<>();
                 isNotAWord = false;
                 for (String param : args) {
                     final String params[] = param.split("=", 2);
@@ -223,7 +223,7 @@ public class CombinedInputOutput {
      */
     public static void writeDictionaryCombined(
             final Writer destination, final FusionDictionary dict) throws IOException {
-        final TreeSet<WordProperty> wordPropertiesInDict = new TreeSet<WordProperty>();
+        final TreeSet<WordProperty> wordPropertiesInDict = new TreeSet<>();
         for (final WordProperty wordProperty : dict) {
             // This for ordering by frequency, then by asciibetic order
             wordPropertiesInDict.add(wordProperty);
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
index 8e8ab19e0..37c8d4184 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
@@ -138,7 +138,7 @@ public class DictionaryMaker {
         }
 
         public Arguments(String[] argsArray) throws IOException {
-            final LinkedList<String> args = new LinkedList<String>(Arrays.asList(argsArray));
+            final LinkedList<String> args = new LinkedList<>(Arrays.asList(argsArray));
             if (args.isEmpty()) {
                 displayHelp();
             }
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Dicttool.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Dicttool.java
index cacee5268..8ae035f64 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Dicttool.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Dicttool.java
@@ -29,8 +29,7 @@ public class Dicttool {
         abstract public String getHelp();
         abstract public void run() throws Exception;
     }
-    static HashMap<String, Class<? extends Command>> sCommands =
-            new HashMap<String, Class<? extends Command>>();
+    static HashMap<String, Class<? extends Command>> sCommands = new HashMap<>();
     static {
         CommandList.populate();
     }
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
index cd3d4d393..94d1ae8bb 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
@@ -85,8 +85,7 @@ public class Diff extends Dicttool.Command {
 
     private static void diffHeaders(final FusionDictionary dict0, final FusionDictionary dict1) {
         boolean hasDifferences = false;
-        final HashMap<String, String> options1 =
-                new HashMap<String, String>(dict1.mOptions.mAttributes);
+        final HashMap<String, String> options1 = new HashMap<>(dict1.mOptions.mAttributes);
         for (final String optionKey : dict0.mOptions.mAttributes.keySet()) {
             if (!dict0.mOptions.mAttributes.get(optionKey).equals(
                     dict1.mOptions.mAttributes.get(optionKey))) {
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Test.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Test.java
index 33661c8d6..b6383d788 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Test.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Test.java
@@ -53,8 +53,8 @@ public class Test extends Dicttool.Command {
         BinaryDictDecoderEncoderTests.class,
         BinaryDictEncoderFlattenTreeTests.class,
     };
-    private ArrayList<Method> mAllTestMethods = new ArrayList<Method>();
-    private ArrayList<String> mUsedTestMethods = new ArrayList<String>();
+    private ArrayList<Method> mAllTestMethods = new ArrayList<>();
+    private ArrayList<String> mUsedTestMethods = new ArrayList<>();
 
     public Test() {
         for (final Class<?> c : sClassesToTest) {
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
index 17e77dca1..7435fa7d6 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
@@ -115,7 +115,7 @@ public class XmlDictInputOutput {
                     }
                 }
             } else if (ROOT_TAG.equals(localName)) {
-                final HashMap<String, String> attributes = new HashMap<String, String>();
+                final HashMap<String, String> attributes = new HashMap<>();
                 for (int attrIndex = 0; attrIndex < attrs.getLength(); ++attrIndex) {
                     final String attrName = attrs.getLocalName(attrIndex);
                     attributes.put(attrName, attrs.getValue(attrIndex));
@@ -172,7 +172,7 @@ public class XmlDictInputOutput {
             DST_ATTRIBUTE = dstAttribute;
             DST_FREQ = dstFreq;
             mSrc = null;
-            mAssocMap = new HashMap<String, ArrayList<WeightedString>>();
+            mAssocMap = new HashMap<>();
         }
 
         @Override
@@ -184,7 +184,7 @@ public class XmlDictInputOutput {
                 int freq = getValueFromFreqString(attrs.getValue(uri, DST_FREQ));
                 WeightedString bigram = new WeightedString(dst, freq / XML_TO_MEMORY_RATIO);
                 ArrayList<WeightedString> bigramList = mAssocMap.get(mSrc);
-                if (null == bigramList) bigramList = new ArrayList<WeightedString>();
+                if (null == bigramList) bigramList = new ArrayList<>();
                 bigramList.add(bigram);
                 mAssocMap.put(mSrc, bigramList);
             }
@@ -352,7 +352,7 @@ public class XmlDictInputOutput {
      */
     public static void writeDictionaryXml(Writer destination, FusionDictionary dict)
             throws IOException {
-        final TreeSet<WordProperty> wordPropertiesInDict = new TreeSet<WordProperty>();
+        final TreeSet<WordProperty> wordPropertiesInDict = new TreeSet<>();
         for (WordProperty wordProperty : dict) {
             wordPropertiesInDict.add(wordProperty);
         }
diff --git a/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java b/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
index 4f1273bdc..fccb654b0 100644
--- a/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
+++ b/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
@@ -16,12 +16,10 @@
 
 package com.android.inputmethod.latin.dicttool;
 
-import com.android.inputmethod.latin.Dictionary;
 import com.android.inputmethod.latin.makedict.BinaryDictIOUtils;
 import com.android.inputmethod.latin.makedict.DictDecoder;
 import com.android.inputmethod.latin.makedict.DictEncoder;
 import com.android.inputmethod.latin.makedict.DictionaryHeader;
-import com.android.inputmethod.latin.makedict.FormatSpec;
 import com.android.inputmethod.latin.makedict.FormatSpec.DictionaryOptions;
 import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
 import com.android.inputmethod.latin.makedict.FusionDictionary;
@@ -32,8 +30,8 @@ import com.android.inputmethod.latin.makedict.Ver2DictEncoder;
 
 import junit.framework.TestCase;
 
-import java.io.File;
 import java.io.BufferedOutputStream;
+import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
diff --git a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
index 6e81c3f3a..71f8ac8d4 100644
--- a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
+++ b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
@@ -32,7 +32,7 @@ import java.util.Random;
  * Unit tests for FusionDictionary.
  */
 public class FusionDictionaryTest extends TestCase {
-    private static final ArrayList<String> sWords = new ArrayList<String>();
+    private static final ArrayList<String> sWords = new ArrayList<>();
     private static final int MAX_UNIGRAMS = 1000;
 
     private void prepare(final long seed) {
diff --git a/tools/make-keyboard-text/res/src/com/android/inputmethod/keyboard/internal/KeyboardTextsTable.tmpl b/tools/make-keyboard-text/res/src/com/android/inputmethod/keyboard/internal/KeyboardTextsTable.tmpl
index 2b5494fa5..6a7469ccb 100644
--- a/tools/make-keyboard-text/res/src/com/android/inputmethod/keyboard/internal/KeyboardTextsTable.tmpl
+++ b/tools/make-keyboard-text/res/src/com/android/inputmethod/keyboard/internal/KeyboardTextsTable.tmpl
@@ -16,8 +16,6 @@
 
 package com.android.inputmethod.keyboard.internal;
 
-import com.android.inputmethod.latin.utils.CollectionUtils;
-
 import java.util.HashMap;
 import java.util.Locale;
 
@@ -44,14 +42,12 @@ import java.util.Locale;
  */
 public final class KeyboardTextsTable {
     // Name to index map.
-    private static final HashMap<String, Integer> sNameToIndexesMap = CollectionUtils.newHashMap();
+    private static final HashMap<String, Integer> sNameToIndexesMap = new HashMap<>();
     // Locale to texts table map.
-    private static final HashMap<String, String[]> sLocaleToTextsTableMap =
-            CollectionUtils.newHashMap();
+    private static final HashMap<String, String[]> sLocaleToTextsTableMap = new HashMap<>();
     // TODO: Remove this variable after debugging.
     // Texts table to locale maps.
-    private static final HashMap<String[], String> sTextsTableToLocaleMap =
-            CollectionUtils.newHashMap();
+    private static final HashMap<String[], String> sTextsTableToLocaleMap = new HashMap<>();
 
     public static String getText(final String name, final String[] textsTable) {
         final Integer indexObj = sNameToIndexesMap.get(name);
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java
index c947a63bf..abb33397b 100644
--- a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java
@@ -61,7 +61,7 @@ public final class JarUtils {
     }
 
     public static ArrayList<String> getEntryNameListing(final JarFile jar, final JarFilter filter) {
-        final ArrayList<String> result = new ArrayList<String>();
+        final ArrayList<String> result = new ArrayList<>();
         final Enumeration<JarEntry> entries = jar.entries();
         while (entries.hasMoreElements()) {
             final JarEntry entry = entries.nextElement();
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/LocaleUtils.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/LocaleUtils.java
index 0dfa37667..c1a7ec5eb 100644
--- a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/LocaleUtils.java
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/LocaleUtils.java
@@ -35,7 +35,7 @@ public final class LocaleUtils {
         // Intentional empty constructor for utility class.
     }
 
-    private static final HashMap<String, Locale> sLocaleCache = new HashMap<String, Locale>();
+    private static final HashMap<String, Locale> sLocaleCache = new HashMap<>();
 
     private static final int INDEX_LANGUAGE = 0;
     private static final int INDEX_SCRIPT = 1;
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java
index 36a03f8dc..6c15ce6bf 100644
--- a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java
@@ -36,7 +36,7 @@ public class MakeKeyboardText {
         }
 
         public Options(final String[] argsArray) {
-            final LinkedList<String> args = new LinkedList<String>(Arrays.asList(argsArray));
+            final LinkedList<String> args = new LinkedList<>(Arrays.asList(argsArray));
             String arg = null;
             String java = null;
             try {
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java
index c8cb4acec..563acc57e 100644
--- a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java
@@ -43,12 +43,11 @@ public class MoreKeysResources {
     private final JarFile mJar;
     // String resources maps sorted by its language. The language is determined from the jar entry
     // name by calling {@link JarUtils#getLocaleFromEntryName(String)}.
-    private final TreeMap<String, StringResourceMap> mResourcesMap =
-            new TreeMap<String, StringResourceMap>();
+    private final TreeMap<String, StringResourceMap> mResourcesMap = new TreeMap<>();
     // Default string resources map.
     private final StringResourceMap mDefaultResourceMap;
     // Histogram of string resource names. This is used to sort {@link #mSortedResourceNames}.
-    private final HashMap<String, Integer> mNameHistogram = new HashMap<String, Integer>();
+    private final HashMap<String, Integer> mNameHistogram = new HashMap<>();
     // Sorted string resource names array; Descending order of histogram count.
     // The string resource name is specified as an attribute "name" in string resource files.
     // The string resource can be accessed by specifying name "!text/<name>"
@@ -68,7 +67,7 @@ public class MoreKeysResources {
 
         // Initialize name histogram and names list.
         final HashMap<String, Integer> nameHistogram = mNameHistogram;
-        final ArrayList<String> resourceNamesList = new ArrayList<String>();
+        final ArrayList<String> resourceNamesList = new ArrayList<>();
         for (final StringResource res : mDefaultResourceMap.getResources()) {
             nameHistogram.put(res.mName, 0); // Initialize histogram value.
             resourceNamesList.add(res.mName);
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java
index 6a79268e5..cf44f2cad 100644
--- a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java
@@ -73,7 +73,7 @@ public class StringResourceMap {
         }
 
         mResources = Collections.unmodifiableList(handler.mResources);
-        final HashMap<String,StringResource> map = new HashMap<String,StringResource>();
+        final HashMap<String, StringResource> map = new HashMap<>();
         for (final StringResource res : mResources) {
             map.put(res.mName, res);
         }
@@ -105,7 +105,7 @@ public class StringResourceMap {
         private static final String TAG_STRING = "string";
         private static final String ATTR_NAME = "name";
 
-        final ArrayList<StringResource> mResources = new ArrayList<StringResource>();
+        final ArrayList<StringResource> mResources = new ArrayList<>();
 
         private String mName;
         private final StringBuilder mValue = new StringBuilder();