/guava/guava/src/com/google/common/base/Ascii.java
newChars[i] = toUpperCase ( chars.charAt ( i ) ) ;
public static String toUpperCase(CharSequence chars) { if (chars instanceof String) { return toUpperCase((String) chars); } char[] newChars = new char[chars.length()]; for (int i = 0; i < newChars.length; i++) { <extra_id_0> } return String.valueOf(newChars); } public static char toUpperCase(char c) { return isLowerCase(c) ? (char) (c ^ CASE_MASK) : c; }