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<p class=MsoNormal>Hi!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>I really struggled some time with
serialization issues: I want to create a pkg and package that with the jar.
>From there I want to read it during runtime.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Easy I thought. Drools 5 way should be to
serialize the KnowledgeBase, right? At least, this is what the AntTask does.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>If I try to serialize the KnowledgePackage
I get an excpetion anyway:<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Okay. Back to the KnowledgeBase.
Serialized with Drools 5.0.0.M4 and try to read it with 5.0.0.M5:<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Caused by:
java.io.InvalidClassException: <o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US> org.drools.impl.KnowledgeBaseImpl; <o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US> local class incompatible: stream
classdesc serialVersionUID = -4540376767025107954,<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US> local class serialVersionUID =
-3186110098262381425<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>So it seems Drools Packages are NOT compatible
between minor versions? This would be a disaster for deployment. Or do I
serialize the wrong thing? Unfortunately I didn’t find anything in the
docs about it.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Then I tried to do it the “old”
Drools 4 way and serialize Package objects, but same problem with a different
serialVersionUID!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Why do these important classes don’t
have a serialVersionUID? Or how should that be loaded? Must be a big issue with
Govner, so I think there must be a solution already?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thanks for any help!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Cheers<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Bernd</span><span lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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