Resolving The Problem

In IBM® Rational® XDE™ Tester, the callScript() method can return a value, but the testMain method of the called script must be edited so that it returns an object instead of void, ex. change

public void testMain (Object args[])

to

public java.lang.Object testMain (Object args[])

In addition, the called script must have a return statement, ex.

String planet = "World";
return planet;

The script using the callScript() method, i.e. the calling script, should be edited so that it accepts the return value, ex.

//Child is the name of the called script
String greeting_part_two = ((String) callScript("Child"));

Here is a very simple example illustrating these principles

Calling script, which is called Parent in this example:
public class Parent extends ParentHelper
{

public void testMain (Object[] args)
{
String greeting_part_one = "Hello";
String greeting_part_two = ((String) callScript("Child"));
System.out.println(greeting_part_one + " " + greeting_part_two);
}

public java.lang.Object testMain (Object[] args)
{
String planet = "World";
return planet;
}