Fix a few more Javadoc typos.

Change-Id: Id43fe2551ef53c1a0a779c6101ea0bc7c23e1f93

telephony/java/com/android/internal/telephony/GsmAlphabet.java

@@ -319,7 +319,7 @@ public class GsmAlphabet {
 
                 gsmVal = (0x7f & (pdu[offset + byteOffset] >> shift));
 
-                // if it crosses a byte boundry
+                // if it crosses a byte boundary
                 if (shift > 1) {
                     // set msb bits to 0
                     gsmVal &= 0x7f >> (shift - 1);

telephony/java/com/android/internal/telephony/IccUtils.java

@@ -265,9 +265,11 @@ public class IccUtils {
 
 
     /**
-     * Converts a byte array into a String hexidecimal characters
+     * Converts a byte array into a String of hexadecimal characters.
      *
-     * null returns null
+     * @param bytes an array of bytes
+     *
+     * @return hex string representation of bytes array
      */
     public static String
     bytesToHexString(byte[] bytes) {

telephony/java/com/android/internal/telephony/cdma/SmsMessage.java

@@ -58,7 +58,7 @@ import static android.telephony.SmsMessage.MessageClass;
 /**
  * TODO(cleanup): internally returning null in many places makes
  * debugging very hard (among many other reasons) and should be made
- * more meaningful (replaced with execptions for example).  Null
+ * more meaningful (replaced with exceptions for example).  Null
  * returns should only occur at the very outside of the module/class
  * scope.
  */
@@ -614,7 +614,7 @@ public class SmsMessage extends SmsMessageBase {
      * incrementing within the range 1..65535 remembering the state
      * via a persistent system property.  (See C.S0015-B, v2.0,
      * 4.3.1.5) Since this routine is expected to be accessed via via
-     * binder-call, and hence should be threadsafe, it has been
+     * binder-call, and hence should be thread-safe, it has been
      * synchronized.
      */
     private synchronized static int getNextMessageId() {

telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java

@@ -403,7 +403,7 @@ public final class BearerData {
     /**
      * Calculate the message text encoding length, fragmentation, and other details.
      *
-     * @param force ignore (but still count) illegal characters if true
+     * @param force7BitEncoding ignore (but still count) illegal characters if true
      * @return septet count, or -1 on failure
      */
     public static TextEncodingDetails calcTextEncodingDetails(CharSequence msg,
@@ -693,7 +693,7 @@ public final class BearerData {
     /*
      * TODO(cleanup): CdmaSmsAddress encoding should make use of
      * CdmaSmsAddress.parse provided that DTMF encoding is unified,
-     * and the difference in 4bit vs 8bit is resolved.
+     * and the difference in 4-bit vs. 8-bit is resolved.
      */
 
     private static void encodeCdmaSmsAddress(CdmaSmsAddress addr) throws CodingException {
@@ -912,7 +912,7 @@ public final class BearerData {
     private static String decodeUtf16(byte[] data, int offset, int numFields)
         throws CodingException
     {
-        // Start reading from the next 16-bit aligned boundry after offset.
+        // Start reading from the next 16-bit aligned boundary after offset.
         int padding = offset % 2;
         numFields -= (offset + padding) / 2;
         try {

telephony/tests/telephonytests/src/com/android/internal/telephony/GsmAlphabetTest.java

@@ -51,7 +51,7 @@ public class GsmAlphabetTest extends TestCase {
         // '@' maps to char 0
         assertEquals(0, GsmAlphabet.charToGsm('@'));
 
-        // `a (a with grave accent) maps to last GSM charater
+        // `a (a with grave accent) maps to last GSM character
         assertEquals(0x7f, GsmAlphabet.charToGsm('\u00e0'));
 
         //