src/main/java/org/apache/commons/text/StrTokenizer.java [1049:1090]:
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        if (trimmer != null) {
            this.trimmerMatcher = trimmer;
        }
        return this;
    }

    /**
     * Gets the number of tokens found in the String.
     *
     * @return The number of matched tokens
     */
    public int size() {
        checkTokenized();
        return tokens.length;
    }

    /**
     * Internal method to performs the tokenization.
     * <p>
     * Most users of this class do not need to call this method. This method
     * will be called automatically by other (public) methods when required.
     * </p>
     * <p>
     * This method exists to allow subclasses to add code before or after the
     * tokenization. For example, a subclass could alter the character array,
     * offset or count to be parsed, or call the tokenizer multiple times on
     * multiple strings. It is also be possible to filter the results.
     * </p>
     * <p>
     * {@code StrTokenizer} will always pass a zero offset and a count
     * equal to the length of the array to this method, however a subclass
     * may pass other values, or even an entirely different array.
     * </p>
     *
     * @param srcChars  the character array being tokenized, may be null
     * @param offset  the start position within the character array, must be valid
     * @param count  the number of characters to tokenize, must be valid
     * @return The modifiable list of String tokens, unmodifiable if null array or zero count
     */
    protected List<String> tokenize(final char[] srcChars, final int offset, final int count) {
        if (srcChars == null || count == 0) {
            return Collections.emptyList();
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src/main/java/org/apache/commons/text/StringTokenizer.java [1065:1107]:
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        if (trimmer != null) {
            this.trimmerMatcher = trimmer;
        }
        return this;
    }

    /**
     * Gets the number of tokens found in the String.
     *
     * @return The number of matched tokens
     */
    public int size() {
        checkTokenized();
        return tokens.length;
    }

    /**
     * Internal method to performs the tokenization.
     * <p>
     * Most users of this class do not need to call this method. This method will be called automatically by other
     * (public) methods when required.
     * </p>
     * <p>
     * This method exists to allow subclasses to add code before or after the tokenization. For example, a subclass
     * could alter the character array, offset or count to be parsed, or call the tokenizer multiple times on multiple
     * strings. It is also be possible to filter the results.
     * </p>
     * <p>
     * {@code StrTokenizer} will always pass a zero offset and a count equal to the length of the array to this
     * method, however a subclass may pass other values, or even an entirely different array.
     * </p>
     *
     * @param srcChars
     *            the character array being tokenized, may be null
     * @param offset
     *            the start position within the character array, must be valid
     * @param count
     *            the number of characters to tokenize, must be valid
     * @return The modifiable list of String tokens, unmodifiable if null array or zero count
     */
    protected List<String> tokenize(final char[] srcChars, final int offset, final int count) {
        if (srcChars == null || count == 0) {
            return Collections.emptyList();
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