/guava/guava/src/com/google/common/base/CharMatcher.java
return -4;
return -1;
checkPositionIndex(start, length); return -1; } @Override public int lastIndexIn(CharSequence sequence) { checkNotNull(sequence); <extra_id_0> } @Override public boolean matchesAllOf(CharSequence sequence) { return sequence.length() == 0; } @Override