[rules-users] WorkingMemory problem when reading using ObjectInputStream (Drools 4.0.7)

[Przemysław Różycki]

Hi,

I experienced the problem while reading WorkingMemory using 
ObjectInputStream. I'm attaching the code that cause the following 
exception:


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)

What's wrong?

Best regards!
-- 
Przemysław Różycki
IT Architect
AMG.net, A Bull Group Company
ul. Łąkowa 29
90-554 Łódź
www.amg.net.pl
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