src/main/java/com/workplacesystems/utilsj/collections/TransactionalBidiTreeMap.java
@Override
    public boolean containsValue(final Object value) {

        checkValue(value);

        return lookupValid(value, VALUE, getCurrentThreadId()) != null;
    }
@Override
    public boolean containsValue(final Object value) {

        checkValue(value);

        return lookupValid(value, VALUE, getCurrentThreadId()) != null;
    }
Returns true if this map maps one or more keys to the
specified value.

@param value value whose presence in this map is to be tested.

@return true if this map maps one or more keys to the specified
value.