The method works if you provide an array. The output of
String[] helloWorld = {"Hello", "World"};
System.out.println(helloWorld);
System.out.println(Arrays.toString(helloWorld));
is
[Ljava.lang.String;@45a877
[Hello, World]
(the number after @ is almost always different)
Please tell us the return type of Employee.getSelectCancel()