Hi All, 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) ############## I have attached my source code. Thanks and Regards, Ganesh http://www.nabble.com/file/p19429177/RuleDemo.java RuleDemo.java -- View this message in context: http://www.nabble.com/Agenda.getScheduledActivations%28%29-method-is-thro... Sent from the drools - dev mailing list archive at Nabble.com.