[jboss-jira] [JBoss JIRA] Created: (JBRULES-3196) Infinite loop instead of NPE
Infinite loop instead of NPE
----------------------------
Key: JBRULES-3196
URL: https://issues.jboss.org/browse/JBRULES-3196
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core (expert)
Affects Versions: 5.3.0.Beta1
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Priority: Critical
Fix For: 5.3.0.CR1
The marked statement results in an infinite loop if the
HashMap gradeMap is not initialized. Expected behaviour
is to throw an exception, e.g. NPE.
import java.util.HashMap;
declare Student
name : String @key
gradeMap : HashMap
end
rule KickOff
when
then
Student s = new Student( "Joe" );
insert( s );
end
rule "Subject grade points"
dialect "mvel"
when
$u : Student()
then
System.out.println("Adding marks for " + $u.getName() );
$u.gradeMap["CompSc"] += 100;
###<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
LOOP
System.out.println("Marks added");
end
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