[jboss-jira] [JBoss JIRA] Updated: (JBRULES-1765) Agenda.getScheduledActivations() method is throwing NullPointerException

[Ganesh Patkar (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-1765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ganesh Patkar updated JBRULES-1765:
-----------------------------------

    Attachment: RuleDemo.java


> Agenda.getScheduledActivations() method is throwing NullPointerException
> ------------------------------------------------------------------------
>
>                 Key: JBRULES-1765
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-1765
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.0.4, 4.0.5, 4.0.6, 4.0.7
>         Environment: Hardware: Intel P4 3.2GHz
> OS: Windows XP Professional Version 2002 SP3
>            Reporter: Ganesh Patkar
>            Assignee: Mark Proctor
>         Attachments: RuleDemo.java
>
>
> I have a init rule in which i am accessing Agenda.getScheduledActivations() method. But it throws NullPointerException. I have tried with both drools-core 4.0.4 and drools-core 4.0.7 jar files. 
> Here are the rules: 
> package com.demo.rules; 
> import java.util.Date; 
> import org.drools.Agenda; 
> import org.drools.spi.Activation; 
> import com.demo.metric.TxInfo; 
> import com.demo.rules.RuleDemo; 
> function void removeActivationsForRule(String ruleName, Agenda agenda) { 
>         Activation[] actArr; 
>         Activation act; 
>         int len; 
>         try { 
>                 actArr = agenda.getScheduledActivations(); 
>                 len = actArr.length; 
>                 System.out.println("*** Scheduled Activation[] Length : " + len); 
>                 for(int i=0;i<len;++i) { 
>                         act = actArr[i]; 
>                         if(act.getRule().getName().equals(ruleName)) { 
>                                 System.out.println("*** ACTIVATION : " + act + " IS REMOVED ***"); 
>                                 act.remove(); 
>                         } 
>                 } 
>         } catch (NullPointerException ex) { 
>                 System.out.println("##############"); 
>                 ex.printStackTrace(); 
>                 System.out.println("##############"); 
>         } 
> } 
> rule 'init_rule1' 
> salience 10 
> when TxInfo(totalTime <= 100) 
> then 
>         removeActivationsForRule("rule1", drools.getWorkingMemory().getAgenda()); 
> end 
> rule 'rule1' 
> duration 60000 
> when TxInfo(totalTime > 100) 
> then 
>         System.out.println("**** FIRING RULE : rule1 : -" + new Date() + "- ****"); 
> end 
> Here is the stack trace: 
> ############## 
> java.lang.NullPointerException 
>         at org.drools.common.DefaultAgenda.getScheduledActivations(DefaultAgenda.java:351) 
>         at com.demo.rules.RuleDemo.removeScheduledActivations(RuleDemo.java:132) 
>         at com.demo.rules.RuleDemo.beforeActivationFired(RuleDemo.java:175) 
>         at org.drools.event.AgendaEventSupport.fireBeforeActivationFired(AgendaEventSupport.java:103) 
>         at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:540) 
>         at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518) 
>         at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475)############## 
> ############## 
>         at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439) 
>         at com.demo.rules.RuleDemo.fireRule(RuleDemo.java:116) 
>         at com.demo.rules.RuleDemo.main(RuleDemo.java:221) 
> java.lang.NullPointerException 
>         at org.drools.common.DefaultAgenda.getScheduledActivations(DefaultAgenda.java:351) 
>         at com.demo.rules.RemoveActivationsForRule.removeActivationsForRule(RemoveActivationsForRule.java:27) 
>         at com.demo.rules.Rule_init_rule1_0.consequence(Rule_init_rule1_0.java:7) 
>         at com.demo.rules.Rule_init_rule1_0ConsequenceInvoker.evaluate(Rule_init_rule1_0ConsequenceInvoker.java:22) 
>         at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554) 
>         at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518) 
>         at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475) 
>         at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439) 
>         at com.demo.rules.RuleDemo.fireRule(RuleDemo.java:116) 
>         at com.demo.rules.RuleDemo.main(RuleDemo.java:221) 
> ############## 

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