Hi,

I have a situation where I need to iterate over an ArrayList in the RHS of a
rule. The ArrayList is created in the LHS of the rule as follows :

rule "Hello World"
dialect "mvel"
       when
               $cur    : Message()
               $others : ArrayList ( size > 0 ) from collect(Message(status ==
$cur.status,  this != $cur ))
       then
               for ( int ctr = 0; ctr < $others.size(); ctr++)
               {
                       System.out.println((Message) $others.get(ctr));
               }
end

This works in Drools 5.1.1.

However it gives the following parser error in Drools 5.2.X :

     Unable to Analyse Expression for ( int ctr = 0; ctr < $others.size();
ctr++);
               {
                       System.out.println((Message) $others.get(ctr));
               }               ;:
     [Error: was expecting type: java.lang.Object; but found type:
<Unknown>]
     [Near : {... for ( int ctr = 0; ctr < $othe ....}]
                     ^
     [Line: 6, Column: 0] : [Rule name='Hello World']

     java.lang.IllegalArgumentException: Could not parse knowledge.
             at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:50)
             at com.sample.DroolsTest.main(DroolsTest.java:23)

What am I missing here ? Any insight on a possible solution is appreciated.
This has become a big stumbling block for us to move from 5.1.1 to 5.2.1.

Thanks in advance,
Gurvinder



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