[jboss-jira] [JBoss JIRA] (DROOLS-626) collectList on objects of type java.lang.Class get returned as null

[David Fell (JIRA)]

David Fell created DROOLS-626:
---------------------------------

             Summary: collectList on objects of type java.lang.Class get returned as null
                 Key: DROOLS-626
                 URL: https://issues.jboss.org/browse/DROOLS-626
             Project: Drools
          Issue Type: Bug
    Affects Versions: 6.2.0.Beta1
         Environment: Snapshot Drools 6.2.0.201410031437 runtime
            Reporter: David Fell
            Assignee: Mark Proctor


If collectList in an accumulate is supplied objects of type java.lang.Class, then subsequent examination of the supplied list yields null values rather than the expect Class values.

Test case below. Swapping the comments to make InitClass have a String field instead of a Class field changes the behaviour of the list from collectList to what one would expect.

package com.sample

declare MyClass end

declare InitClass
	clazz: Class @key
//	clazz: String @key
end

rule "init"
	when
	then
		insert( new InitClass( MyClass.class ) );
//		insert( new InitClass( "some string" ) );
end

rule "make init classes"
	when
		accumulate( InitClass( $clazz; ), $list: collectList( $clazz ) )
	then
		System.out.printf("%d items in list\n", $list.size());
		for(Object obj : $list)
			System.out.printf("item is %s\n", obj);
end

rule "show init classes"
	when
		InitClass( $v; )
	then
		System.out.printf("match %s\n", $v);
end




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