Merge "[RCS]Migrate from getEncodedMessage() to toEncodedMessage()"

    method public int describeContents();

    method @Nullable public String getCallIdParameter();

    method @NonNull public byte[] getContent();

    method @Deprecated @NonNull public byte[] getEncodedMessage();

    method @NonNull public String getHeaderSection();

    method @NonNull public String getStartLine();

    method @NonNull public String getViaBranchParameter();

        return result;

    }

    /**

     * @return the UTF-8 encoded SIP message.

     * @deprecated Use {@link #toEncodedMessage} instead

     */

    @Deprecated

    public @NonNull byte[] getEncodedMessage() {

        byte[] header = new StringBuilder()

                .append(mStartLine)

                .append(mHeaderSection)

                .append(CRLF)

                .toString().getBytes(UTF_8);

        byte[] sipMessage = new byte[header.length + mContent.length];

        System.arraycopy(header, 0, sipMessage, 0, header.length);

        System.arraycopy(mContent, 0, sipMessage, header.length, mContent.length);

        return sipMessage;

    }

    /**

     * According RFC-3261 section 7, SIP is a text protocol and uses the UTF-8 charset. Its format

     * consists of a start-line, one or more header fields, an empty line indicating the end of the