It looks like if there are statements behind the cursor position, the autowire bean proposals do not show up:

public void foo() {
	this.<*>
	System.out.println("something");
}

It works just for empty bodies, e.g.:

public void foo() {
	this.<*>
}

and it seems to also work fine if there are statements before the cursor position, e.g.:

public void foo() {
	System.out.println("something");
	this.<*>
}