[rules-users] Rules error

[Fnu Mahalakshmi]

Hi,
I m trying to do this:
GeneralList and RequiredList are my global lists
rule "populate list for A with required status"
when
    $a : A()
    $list : ArrayList( size > 0 )
              from collect( B( a.name == $a.name, status == "P" ) )
then
      requiredList.addAll($list);
end

rule "populate list for A with general status"
when
    $a : A()
    $list : ArrayList( size > 0 )
              from collect( B( a.name == $a.name, status == "U" ) )
then
      generalList.addAll($list2);
      System.out.println("general list size " +generalList.size());
      generalList.removeAll(requiredList);
      System.out.println("general list size " +generalList.size());
End

But remove all does not seem to have any effect.
Any idea why????

Plus if I do
when
    $a : A()
    $list : ArrayList( size > 0 )
              from collect( B( a.name == $a.name, status != "U" ) ) // "!=" it just ends up giving me all the values and not what status is


Please help.

Thanks
M
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