this is a one of my rules... rule "cancel_menu" when arrayList : ArrayList() MegaTransferObject(other_EffectiveOrderTypeDsl != null, other_EffectiveOrderTypeDsl == Constants.NEW_OPEN_ORDER_TYPE) and not MegaTransferObject(orders_FkOrderStatusId != null, orders_FkOrderStatusId == Constants.PENDING_TO_BE_SUBMITTED_ORDER_STATUS) then arrayList.add(new String[]{ Constants.SERVICE_ASSURANCE_TREE_MENU_DSL, Constants.SERVICE_ASSURANCE_MENU_CANCEL}); end i do an assert of an empty arrayList... when i use this arrayList : ArrayList() on the when the rule fire an error...why? will the ArrayList be the same on all the rules (i think it will but want to make sure) Joel G. Rivera-Gonzalez PRT "The first 90% of a project takes 90% of the time, the last 10% takes the other 90% of the time" - Murphy's Law ----- Original Message ---- From: Kumaran S <kumaran.shanmuhan(a)gmail.com&gt; To: Joel G. Rivera-González <el_pio(a)yahoo.com&gt; Sent: Friday, January 5, 2007 5:42:01 PM Subject: Re: [rules-users] rules questions... getResourceAsStream(ruleDrl) expects to find a drl file based on the location represented by "ruleDrl". It should be noted that the location should be accessible from the CLASSPATH. You could get a null pointer exception, if the location is not accessible from your CLASSPATH. On 1/5/07, Joel G. Rivera-González <el_pio(a)yahoo.com&gt; wrote: > Trying to figure out the new rule system... > but it doesnt work... > > This is my rule: > > package com.prtc.struts.rules > > import com.prtc.db.MegaTransferObject > import java.util.ArrayList > import com.prtc.struts.Constants > > rule "cancel_menu" > when > megaTO : MegaexistMegaTransferObject() > megaTO(other_EffectiveOrderTypeDsl != null) and > megaTO(other_EffectiveOrderTypeDsl == > Constants.NEW_OPEN_ORDER_TYPE ) and > megaTO(orders_FkOrderStatusId != null) and > megaTO(orders_FkOrderStatusId == > Constants.PENDING_TO_BE_SUBMITTED_ORDER_STATUS) > > then > System.out.println("Hello"); > end > > part of my code: > InputStreamReader ir = new InputStreamReader( > RuleBuilderMgr.class.getClassLoader().getResourceAsStream(ruleDrl)); > //the null pointer is from this line. > builder.addPackageFromDrl(ir); > > this is the result: > 7661 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler - > compiling com.prtc.struts.rules.Rule_cancel_menu_0 > 7942 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler - > compile com.prtc.struts.rules.Rule_cancel_menu_0 > 8062 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler - > compiled com.prtc.struts.rules.Rule_cancel_menu_0 > 8062 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler > - compiling com.prtc.struts.rules.Rule_cancel_menu_0ConsequenceInvoker > 8072 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler - > compile com.prtc.struts.rules.Rule_cancel_menu_0ConsequenceInvoker > 8092 [main] DEBUG org.apache.commons.jci.compilers.JaninoJavaCompiler - > compiled com.prtc.struts.rules.Rule_cancel_menu_0ConsequenceInvoker > > 8102 [main] FATAL com.prtc.struts.util.ConstructServiceAssuranceTreeMenu > - Exception in ShowIspServiceAssuranceAction.execute --> > java.lang.NullPointerException > 8102 [main] FATAL com.prtc.struts.util.ConstructServiceAssuranceTreeMenu - > java.lang.NullPointerException > at com.prtc.struts.util.ConstructServiceAssuranceTreeMenu.construct( > ConstructServiceAssuranceTreeMenu.java:74) > at com.prtc.lc.rules.managers.RuleTester.test1(RuleTester.java:299) > at com.prtc.lc.rules.managers.RuleTester.main(RuleTester.java:54) > > > > > > > > Joel G. Rivera-Gonzalez > PRT > > "The first 90% of a project takes 90% of the time, the last 10% takes > the other 90% of the time" - Murphy's Law > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > > -- Give me a lever long enough... Single-handed, I shall move the world! _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users