[rules-users] Can't access binary rules package in application

Using BRMS, I created a rule binary package and downloaded it and am trying to access it but I'm getting a NullPointerException. My code looks like this - public void main(Policy inputPolicy) throws Exception { RuleBase ruleBase = loadRuleBase(); StatefulSession session = ruleBase.newStatefulSession(); session.insert(inputPolicy); session.fireAllRules(); } private RuleBase loadRuleBase() throws IOException, Exception { BinaryRuleBaseLoader loader = new BinaryRuleBaseLoader(); loader.addPackage( this.getClass().getResourceAsStream( "/underwriting.pkg" ) ); RuleBase ruleBase = loader.getRuleBase(); return ruleBase; } I'm getting the following error. Can someone tell me what I'm doing wrong? Do I have something coded incorrectly? Exception in thread "main" javax.ejb.EJBException: java.lang.NullPointerException at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) . . . Caused by: java.lang.NullPointerException at org.drools.util.BinaryRuleBaseLoader.addPackage(BinaryRuleBaseLoader.java:105) at org.drools.util.BinaryRuleBaseLoader.addPackage(BinaryRuleBaseLoader.java:67) at com.lidp.server.session.UnderwritingRule.loadRuleBase(UnderwritingRule.java:59) at com.lidp.server.session.UnderwritingRule.main(UnderwritingRule.java:20) at com.lidp.server.session.RuleProcessEngine.underwriting(RuleProcessEngine.java:42)