[jboss-jira] [JBoss JIRA] Commented: (JBRULES-1517) NumberFormatException in ObjectEqualsComparator.equals

NumberFormatException in ObjectEqualsComparator.equals ------------------------------------------------------- Key: JBRULES-1517 URL: http://jira.jboss.com/jira/browse/JBRULES-1517 Project: JBoss Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.0.5 Reporter: Brian Stiles Assigned To: Mark Proctor It's not clear to me whether the ObjectFactory.ObjectEqualsComparator.equals implementation is incorrect or whether it is being used incorrectly, but it assumes that if the first argument is a Number and the second is a String, the second must be a number encoded as a string. From the following example, you can see that this leads to a NumberFormatException in a valid rule. -- package sample; import java.io.StringReader; import org.drools.RuleBase; import org.drools.RuleBaseConfiguration; import org.drools.RuleBaseFactory; import org.drools.StatefulSession; import org.drools.compiler.PackageBuilder; import org.drools.compiler.PackageBuilderConfiguration; public class EqualsProblem { public static class Foo { private final Object _prop; public Foo(Object value) { _prop = value; } public Object getProp() { return _prop; } } public static void main(String[] args) throws Exception { final PackageBuilderConfiguration packageBuilderConfiguration = new PackageBuilderConfiguration(); final PackageBuilder packageBuilder = new PackageBuilder(packageBuilderConfiguration); packageBuilder.addPackageFromDrl(new StringReader("\n" + "package sample\n" + "\n" + "import java.lang.Integer;\n" + "import sample.EqualsProblem.Foo;\n" + "\n" + "rule MyRule\n" + "\n" + " when\n" + " $f : Foo(prop == \"\")\n" + " then \n" + " System.out.println($f);\n" + "end \n")); final RuleBaseConfiguration ruleBaseConfiguration = new RuleBaseConfiguration(); final RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfiguration); ruleBase.addPackage(packageBuilder.getPackage()); final StatefulSession session = ruleBase.newStatefulSession(); session.insert(new Foo(3)); session.fireAllRules(); } }