[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1211) Rules with accumulators cannot be serialized

[Mark Proctor (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1211?page=all ]

Mark Proctor closed JBRULES-1211.
---------------------------------

    Fix Version/s: 4.0.2
       Resolution: Done

> Rules with accumulators cannot be serialized
> --------------------------------------------
>
>                 Key: JBRULES-1211
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1211
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 4.0.1
>            Reporter: Laszlo Muller
>         Assigned To: Mark Proctor
>             Fix For: 4.0.2
>
>
> If a rulesbase includes a max accumulator then it cannot be serialized. The org.drools.base.accumulators.AccumulateFunction interface does not extend Serializable and none of its default implementations implement it either.
> When you try to serialize such a Package you get the following exception:
> java.io.NotSerializableException: org.drools.base.accumulators.MaxAccumulateFunction
>         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)
>         at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332)
>         at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304)
>         at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)
>         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
>         at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
>         at java.util.HashMap.writeObject(HashMap.java:980)
>         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:324)
>         at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:809)
>         at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1296)
>         at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)
>         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
>         at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
>         at org.drools.rule.PackageCompilationData.writeExternal(PackageCompilationData.java:116)
>         at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1267)
>         ...
> Paragraph 7.1.4.4. of the documentation clearly states that packages should be serializable.

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