[jboss-jira] [JBoss JIRA] Assigned: (JBRULES-440) Unable remove a rule package when it was added after it has been added and removed

[Edson Tirelli (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-440?page=all ]

Edson Tirelli reassigned JBRULES-440:
-------------------------------------

    Assignee: Edson Tirelli  (was: Mark Proctor)

> Unable remove a rule package when it was added after it has been added and removed
> ----------------------------------------------------------------------------------
>
>                 Key: JBRULES-440
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-440
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>         Environment: Windows2000 Advanced Server
> JBRules3.0.4
>            Reporter: song hanzeng
>         Assigned To: Edson Tirelli
>
> Unable remove a rule package when it was added after it has been added and removed.
> I have seen the issue  [#JBRULES-358].  My test go a little far than [#JBRULES-358]. 
> I remove the package again when it was added for the seconn time, then an exception was thrown.
>  My test case is:
>     
>     public void testRuleBaseRemove() throws Exception
>     {
>         RuleBase ruleBase = RuleBaseFactory.newRuleBase();
>         File file = new File("test.drl");
>         
>         //add and remove
>         PackageBuilder builder = new PackageBuilder();
>         builder.addPackageFromDrl(new FileReader(file));
>         Package pkg = builder.getPackage();
>         ruleBase.addPackage(pkg);
>         ruleBase.removePackage(pkg.getName());
>         
>         //add and remove again
>         builder = new PackageBuilder();
>         builder.addPackageFromDrl(new FileReader(file));
>         pkg = builder.getPackage();
>         ruleBase.addPackage(pkg);
>         ruleBase.removePackage(pkg.getName());
>     }
> the exception is throw:
> java.lang.NullPointerException
> 	at org.drools.reteoo.HashedObjectSinkList.remove(HashedObjectSinkList.java:102)
> 	at org.drools.reteoo.ObjectTypeNode.remove(ObjectTypeNode.java:245)
> 	at org.drools.reteoo.AlphaNode.remove(AlphaNode.java:211)
> 	at org.drools.reteoo.AlphaNode.remove(AlphaNode.java:211)
> 	at org.drools.reteoo.LeftInputAdapterNode.remove(LeftInputAdapterNode.java:285)
> 	at org.drools.reteoo.TerminalNode.remove(TerminalNode.java:297)
> 	at org.drools.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java:589)
> 	at org.drools.reteoo.ReteooRuleBase.removeRule(ReteooRuleBase.java:244)
> 	at org.drools.common.AbstractRuleBase.removePackage(AbstractRuleBase.java:338)
> 	at com.zte.ums.uep.pal.fm.osf.rules.core.RuleBaseTest.testRuleBaseRemove(RuleBaseTest.java:71)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:324)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

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