Merge "Delete ByteStringUtils: it is no longer used" am: a677e4d5a0

am: ee2ded047a

Change-Id: I0752abd2b5e739f8fde780a07a5e417daa058ba7

core/java/android/util/ByteStringUtils.java

@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.util;
-
-import libcore.util.HexEncoding;
-
-/**
- * A utility class for common byte array to hex string operations and vise versa.
- *
- * @hide
- */
-public final class ByteStringUtils {
-
-    private ByteStringUtils() {
-    /* hide constructor */
-    }
-
-    /**
-     * Returns the hex encoded string representation of bytes.
-     * @param bytes Byte array to encode.
-     * @return Hex encoded string representation of bytes.
-     */
-    public static String toHexString(byte[] bytes) {
-        if (bytes == null || bytes.length == 0 || bytes.length % 2 != 0) {
-            return null;
-        }
-
-        return HexEncoding.encodeToString(bytes, true /* upperCase */);
-    }
-
-    /**
-     * Returns the decoded byte array representation of str.
-     * @param str Hex encoded string to decode.
-     * @return Decoded byte array representation of str.
-     */
-    public static byte[] fromHexToByteArray(String str) {
-        if (str == null || str.length() == 0 || str.length() % 2 != 0) {
-            return null;
-        }
-
-        return HexEncoding.decode(str, false /* allowSingleChar */);
-    }
-}