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https://jira.jboss.org/jira/browse/JBRULES-2113?page=com.atlassian.jira.p...
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M D commented on JBRULES-2113:
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I ran in to this when I used "or with binding" similar to the one below:
(or pensioner : Person( sex == "f", age > 60 )
address : Address( zip == "12345" ) )
Version: 5.1.0M1
NPE thrown by LeftTuple.get() method
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Key: JBRULES-2113
URL:
https://jira.jboss.org/jira/browse/JBRULES-2113
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.0.0.CR1
Environment: FOund in 5.0.0.CR1 - Community version. Windows XP
Reporter: Tom Murphy
Assignee: Mark Proctor
the get() method on LeftTuple throws a null exception under certain circumstances, which
are as yet undetermined.
Here is the Code:
public InternalFactHandle get(final int index) {
LeftTuple entry = this;
while ( entry.index != index ) {
entry = entry.parent;
}
return entry.handle;
}
Note that the loop moves to each parent in succession, but never checks for entry !=
null. If it does get to the end of the chain, it will throw an NPE
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