[basex-talk] Java binding - variable arguments

Hello all, How can I call a method with variable arguments in BaseX with Java binding? I am trying to do this:

|let $string := 'Format string: %1$d - %2$s'|| || let $i := 1|| || let $j := 'text'|| || return Q{java.lang.String}format·java.lang.String·java.lang.Object*($string, $string, $i, $j)|

However, I got the error: [XPDY0002] {java.lang.String}format·java.lang.Stri...: Context is undeclared. Thank you for your time.