Various rules stop firing when adding more, totally unrelated rules to a knowledge base
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Key: JBRULES-2749
URL:
https://jira.jboss.org/browse/JBRULES-2749
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler (expert), drools-core (expert)
Affects Versions: 5.1.1.FINAL
Environment: Environment 1: Fedora Core 12 x86_64, Sun JVM 1.6.0_20 64-bit Server
VM
Environment 2: Windows XP Professional, Service Pack 3, 32 bit; Sun JVM 1.6.0_20 32-bit
Server VM
Reporter: Ansgar Konermann
Assignee: Mark Proctor
A certain rule suddenly stops firing when adding more and more rules to the knowledge
base, which (not only?) on first sight have *nothing* to do with the rule in question.
We created a few unit tests which show the faulty behaviour.
What we observed so far:
* when using declared functions plus declared data types, this error occurrs.
* sometimes, one can work around this problem by renaming a package. We're not sure if
this is a reliable workaround, i. e. works in all situations.
* one can work around this problem by not using declared functions. We're not sure if
this is a reliable workaround.
Find attached a ZIPed git repository containing:
* a Maven 2.1+ pom.xml suitable to trigger the unit tests via mvn test
* Java source files for a TestNG-based unit test
* example drools source files to illustrate the problem (used by the unit tests)
Please have a look at java file
RuleDoesNotFireIfUsingDeclaredFunctionAndTooManyPackages.java. This should make quite
clear what we're expecting of the drools library and where it fails to fulfil these
expectations.
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