diff --git a/src/com/android/contacts/activities/ContactEditorSpringBoardActivity.java b/src/com/android/contacts/activities/ContactEditorSpringBoardActivity.java
index cf2ce9c..64283d2 100644
--- a/src/com/android/contacts/activities/ContactEditorSpringBoardActivity.java
+++ b/src/com/android/contacts/activities/ContactEditorSpringBoardActivity.java
@@ -242,6 +242,7 @@
         finish();
     }
 
+    @SuppressWarnings("MissingSuperCall") // TODO: Fix me
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         // Ignore failed requests
diff --git a/src/com/android/contacts/activities/PeopleActivity.java b/src/com/android/contacts/activities/PeopleActivity.java
index 412c067..ceb3d59 100644
--- a/src/com/android/contacts/activities/PeopleActivity.java
+++ b/src/com/android/contacts/activities/PeopleActivity.java
@@ -421,6 +421,7 @@
         getWindow().setBackgroundDrawable(null);
     }
 
+    @SuppressWarnings("MissingSuperCall") // TODO: Fix me
     @Override
     protected void onNewIntent(Intent intent) {
         final String action = intent.getAction();
@@ -603,6 +604,7 @@
         onSyncStateUpdated();
     }
 
+    @SuppressWarnings("MissingSuperCall") // TODO: Fix me
     @Override
     public void onMultiWindowModeChanged(boolean entering) {
         initializeHomeVisibility();
diff --git a/src/com/android/contacts/editor/ContactEditorFragment.java b/src/com/android/contacts/editor/ContactEditorFragment.java
index ce4b9bc..52c20e6 100755
--- a/src/com/android/contacts/editor/ContactEditorFragment.java
+++ b/src/com/android/contacts/editor/ContactEditorFragment.java
@@ -98,6 +98,7 @@
 import com.google.common.collect.Lists;
 
 import java.io.FileNotFoundException;
+import java.util.Arrays;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
@@ -132,11 +133,10 @@
     private static final String KEY_PHOTO_RAW_CONTACT_ID = "photo_raw_contact_id";
     private static final String KEY_UPDATED_PHOTOS = "updated_photos";
 
-    private static final List<String> VALID_INTENT_ACTIONS = new ArrayList<String>() {{
-        add(Intent.ACTION_EDIT);
-        add(Intent.ACTION_INSERT);
-        add(ContactEditorActivity.ACTION_SAVE_COMPLETED);
-    }};
+    private static final List<String> VALID_INTENT_ACTIONS = Arrays.asList(
+            Intent.ACTION_EDIT,
+            Intent.ACTION_INSERT,
+            ContactEditorActivity.ACTION_SAVE_COMPLETED);
 
     private static final String KEY_ACTION = "action";
     private static final String KEY_URI = "uri";
diff --git a/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java b/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
index df22773..461a752 100644
--- a/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
+++ b/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
@@ -47,7 +47,7 @@
         return new AlertDialog.Builder(getActivity())
                 .setIconAttribute(android.R.attr.alertDialogIcon)
                 .setMessage(R.string.aggregation_suggestion_edit_dialog_message)
-                .setPositiveButton(android.R.string.yes,
+                .setPositiveButton(android.R.string.ok,
                         new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int whichButton) {
@@ -61,7 +61,7 @@
                             }
                         }
                 )
-                .setNegativeButton(android.R.string.no, null)
+                .setNegativeButton(android.R.string.cancel, null)
                 .create();
     }
 }
diff --git a/src/com/android/contacts/list/CustomContactListFilterActivity.java b/src/com/android/contacts/list/CustomContactListFilterActivity.java
index 425ee7e..5bc3c35 100644
--- a/src/com/android/contacts/list/CustomContactListFilterActivity.java
+++ b/src/com/android/contacts/list/CustomContactListFilterActivity.java
@@ -982,8 +982,8 @@
         public Dialog onCreateDialog(Bundle savedInstanceState) {
             return new AlertDialog.Builder(getActivity(), getTheme())
                     .setMessage(R.string.leave_customize_confirmation_dialog_message)
-                    .setNegativeButton(android.R.string.no, null)
-                    .setPositiveButton(android.R.string.yes, this)
+                    .setNegativeButton(android.R.string.cancel, null)
+                    .setPositiveButton(android.R.string.ok, this)
                     .create();
         }
 
diff --git a/src/com/android/contacts/model/SimContact.java b/src/com/android/contacts/model/SimContact.java
index 820e346..ee0e6dc 100644
--- a/src/com/android/contacts/model/SimContact.java
+++ b/src/com/android/contacts/model/SimContact.java
@@ -172,11 +172,7 @@
 
     @Override
     public int hashCode() {
-        int result = (int) (mRecordNumber ^ (mRecordNumber >>> 32));
-        result = 31 * result + (mName != null ? mName.hashCode() : 0);
-        result = 31 * result + (mPhone != null ? mPhone.hashCode() : 0);
-        result = 31 * result + Arrays.hashCode(mEmails);
-        return result;
+        return Objects.hash(mRecordNumber, mName, mPhone, Arrays.hashCode(mEmails));
     }
 
     @Override
diff --git a/src/com/android/contacts/model/dataitem/ImDataItem.java b/src/com/android/contacts/model/dataitem/ImDataItem.java
index a0e087c..a142585 100644
--- a/src/com/android/contacts/model/dataitem/ImDataItem.java
+++ b/src/com/android/contacts/model/dataitem/ImDataItem.java
@@ -23,6 +23,8 @@
 import android.provider.ContactsContract.CommonDataKinds.Im;
 import android.text.TextUtils;
 
+import java.util.Objects;
+
 /**
  * Represents an IM data item, wrapping the columns in
  * {@link ContactsContract.CommonDataKinds.Im}.
@@ -101,7 +103,7 @@
                 return that.getProtocol() == Im.PROTOCOL_CUSTOM;
             }
             return true;
-        } else if (getProtocol() != that.getProtocol()) {
+        } else if (!Objects.equals(getProtocol(), that.getProtocol())) {
             return false;
         } else if (getProtocol() == Im.PROTOCOL_CUSTOM &&
                 !TextUtils.equals(getCustomProtocol(), that.getCustomProtocol())) {
diff --git a/src/com/android/contacts/vcard/ImportVCardDialogFragment.java b/src/com/android/contacts/vcard/ImportVCardDialogFragment.java
index 521a610..7ad67d1 100644
--- a/src/com/android/contacts/vcard/ImportVCardDialogFragment.java
+++ b/src/com/android/contacts/vcard/ImportVCardDialogFragment.java
@@ -68,7 +68,7 @@
         return new AlertDialog.Builder(getActivity())
                 .setIconAttribute(android.R.attr.alertDialogIcon)
                 .setMessage(R.string.import_from_vcf_file_confirmation_message)
-                .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int whichButton) {
                         final Listener listener = (Listener) getActivity();
@@ -77,7 +77,7 @@
                         }
                     }
                 })
-                .setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
+                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int whichButton) {
                         final Listener listener = (Listener) getActivity();