action def ControlNodeTest {
action A1;
then J;
action A2 {
out a;
}
then J;
flow A2.a to F.a;
join J;
then fork F {
in a;
out b1;
out b2;
}
then B1;
then B2;
flow F.b1 to B1.b;
flow F.b2 to B2.b;
action B1 {
in b;
}
then M;
action B2 {
in b;
}
then M;
merge M;
}