/guava/guava/src/com/google/common/base/Ascii.java
if ( isUpperCase( c) ) { char c = chars[i];
char c = chars[i]; if ( isUpperCase ( c ) ) {
public static String toLowerCase(String string) { int length = string.length(); for (int i = 0; i < length; i++) { if (isUpperCase(string.charAt(i))) { char[] chars = string.toCharArray(); for (; i < length; i++) { <extra_id_0> chars[i] = (char) (c ^ CASE_MASK); } } return String.valueOf(chars); } }