jetbrick-commons/src/main/java/jetbrick/lang/StringUtils.java
public static int lastIndexOfIgnoreCase(String s, String substr, int startIndex) {
        return lastIndexOfIgnoreCase(s, substr, startIndex, 0);
    }
public static int lastIndexOfIgnoreCase(String s, String substr, int startIndex) {
        return lastIndexOfIgnoreCase(s, substr, startIndex, 0);
    }
Finds last index of a substring in the given source string with ignored
case.

@param s        source string for examination
@param substr       substring to find
@param startIndex starting index from where search begins

@return last index of founded substring or -1 if substring is not found
@see #indexOfIgnoreCase(String, String, int)