Method split

guava/src/com/google/common/base/Splitter.java:496–512

Splits {@code sequence} into substrings, splits each substring into an entry, and returns an unmodifiable map with each of the entries. For example, {@code Splitter.on(';').trimResults().withKeyValueSeparator("=>").split("a=>b ; c=>b")} will return a mapping from {@code "a"} to {@code "b"} and {@cod

(CharSequence sequence)

     *     entries, or if there are duplicate keys
     */
    public Map<String, String> split(CharSequence sequence) {
      Map<String, String> map = new LinkedHashMap<>();
      for (String entry : outerSplitter.split(sequence)) {
        Iterator<String> entryFields = entrySplitter.splittingIterator(entry);

        checkArgument(entryFields.hasNext(), INVALID_ENTRY_MESSAGE, entry);
        String key = entryFields.next();
        checkArgument(!map.containsKey(key), "Duplicate key [%s] found.", key);

        checkArgument(entryFields.hasNext(), INVALID_ENTRY_MESSAGE, entry);
        String value = entryFields.next();
        map.put(key, value);

        checkArgument(!entryFields.hasNext(), INVALID_ENTRY_MESSAGE, entry);
      }
      return Collections.unmodifiableMap(map);
    }
  }

  private interface Strategy {