util/regex/Matcher.java

1192      * pattern with the result of applying the given replacer function to the
1199      * is replaced in the result by the applying the replacer function that
1221      * <p> The replacer function should not modify this matcher's state during
1226      * <p> The state of each match result passed to the replacer function is
1227      * guaranteed to be constant only for the duration of the replacer function
1228      * call and only if the replacer function does not modify this matcher's
1232      * This implementation applies the replacer function to this matcher, which
1235      * @param  replacer
1239      *          with the result of applying the replacer function to that
1242      * @throws NullPointerException if the replacer function is null
1244      *         best-effort basis, that the replacer function modified this
1248     public String replaceAll(Function<MatchResult, String> replacer) {
1249         Objects.requireNonNull(replacer);
1256                 String replacement =  replacer.apply(this);
1414      * pattern with the result of applying the given replacer function to the
1421      * is replaced in the result by the applying the replacer function that
1443      * <p> The replacer function should not modify this matcher's state during
1448      * <p> The state of the match result passed to the replacer function is
1449      * guaranteed to be constant only for the duration of the replacer function
1450      * call and only if the replacer function does not modify this matcher's
1454      * This implementation applies the replacer function to this matcher, which
1457      * @param  replacer
1461      *          subsequence with the result of applying the replacer function to
1464      * @throws NullPointerException if the replacer function is null
1466      *         best-effort basis, that the replacer function modified this
1470     public String replaceFirst(Function<MatchResult, String> replacer) {
1471         Objects.requireNonNull(replacer);
1477         String replacement = replacer.apply(this);