in hugegraph-common/src/main/java/org/apache/hugegraph/util/StringUtil.java [53:61]
public Chars(char[] chars, int start, int end) {
E.checkArgument(0 < start && start < chars.length || start == 0,
"Invalid start parameter %s", start);
E.checkArgument(start <= end && end <= chars.length,
"Invalid end parameter %s", end);
this.chars = chars;
this.start = start;
this.end = end;
}