[jboss-jira] [JBoss JIRA] Updated: (JBRULES-1925) ClassCastException problem with reading working memory using ObjectInputStream

ClassCastException problem with reading working memory using ObjectInputStream ------------------------------------------------------------------------------ Key: JBRULES-1925 URL: https://jira.jboss.org/jira/browse/JBRULES-1925 Project: JBoss Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.0.7 Environment: JDK 1.5.0_11 Reporter: Przemyslaw Rozycki Assignee: Mark Proctor Fix For: 4.0.8 Attachments: DroolsTest5.java I experienced the problem while reading WorkingMemory using ObjectInputStream. Here is the code: public class DroolsTest5 { public static void main(String[] args) { Properties props = new Properties(); props.setProperty("file", "<<place a path to any working DRL here>>"); RuleAgent ruleAgent = RuleAgent.newRuleAgent(props); Fact fact1 = new Fact("a","b"); RuleBase ruleBase = ruleAgent.getRuleBase(); WorkingMemory baseWm = ruleBase.newStatefulSession(false); baseWm.insert(fact1); Iterator iter1 = baseWm.iterateObjects(); while (iter1.hasNext()) { System.out.println(iter1.next()); } System.out.println("====="); try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(baos); oos.writeObject(baseWm); oos.close(); byte[] buf = baos.toByteArray(); ByteArrayInputStream bais = new ByteArrayInputStream(buf); ObjectInputStream ois = new ObjectInputStream(bais); WorkingMemory wm = (WorkingMemory) ois.readObject(); Iterator iter2 = wm.iterateObjects(); while (iter2.hasNext()) { System.out.println(iter2.next()); } System.out.println("====="); } catch (Exception e) { e.printStackTrace(); } } public static class Fact implements Serializable { String name; String id; public Fact(String _name, String _id) { name = _name; id = _id; } public String getId() { return id; } public String getName() { return name; } @Override public String toString() { return "Name: " + name + ", Id: " + id; } } } And here is an exception I get: java.lang.ClassCastException: java.io.ObjectInputStream at org.drools.reteoo.Rete$ClassObjectTypeConf.readObject(Rete.java:605) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1634) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.drools.util.AbstractHashTable.readExternal(AbstractHashTable.java:66) at org.drools.util.ObjectHashMap.readExternal(ObjectHashMap.java:41) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1755) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1717) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1634) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1634) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at com.sample.DroolsTest5.main(DroolsTest5.java:52)