Description of problem:

A ClassCastException is thrown by trying to use OR condition in when part as follows:

rule "sample"
no-loop
when
$tx: (Text (id=='foo') or Text (id=='bar'))
$m: Message()
then
modify($m)

;
end

However, it works well if using "||". The exact same rule above works well in BRMS 6.2.x.

Version-Release number of selected component (if applicable):
6.3.0

How reproducible:
Always

Steps to Reproduce:
1. Create a sample rule like the one above;
2. Try to run it by using BRMS 6.3.0 libraries;

Actual results:

Caused by: java.lang.ClassCastException: com.sample.Message cannot be cast to org.drools.core.common.InternalFactHandle
at org.drools.core.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:398)
...

Expected results:
It should work well as it work in 6.2.

Additional info:

A workaround would be to split the rule or use "||" as follows:

$tx: Text (id=='foo' || id=='bar')

KCS Solution
"ClassCastException" when modifying a fact involved in an 'or' condition in BRMS 6.3.x