Re: [rules-users] Serialization in Drools 5.0 M2

wrote:

Hi Drools Team, I am trying out new Serialization technique introduced in Drools 5.0 using "org.drools.marshalling.DefaultMarshaller". The use case I am trying, is: Create a Stateful session. Then Serialize that. Try to load the the serialized session back. Loading of serialized session is working good if, I try that in same java program & same object of DefaultMarshaller is used during serialization & de serialization of the Stateful session. But, when I tried a different instance of DefaultMarshaller to read back the saved session, that is not working anymore. I am getting a exception : java.lang.NullPointerException at org.drools.common.DefaultFactHandle.<init>(DefaultFactHandle.java:78) at org.drools.marshalling.InputMarshaller.readFactHandle(InputMarshaller.java:331) at org.drools.marshalling.InputMarshaller.readFactHandles(InputMarshaller.java:277) at org.drools.marshalling.InputMarshaller.readSession(InputMarshaller.java:179) at org.drools.marshalling.DefaultMarshaller.read(DefaultMarshaller.java:58) at org.drools.marshalling.DefaultMarshaller.read(DefaultMarshaller.java:15) at org.drools.reteoo.ReteooRuleBase.readStatefulSession(ReteooRuleBase.java:277) at org.drools.common.AbstractRuleBase.readStatefulSession(AbstractRuleBase.java:321) at com.sample.test.NewMarshallingTest.testSerializationInFile_1(NewMarshallingTest.java:79) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) With Drools 4.0.7 ... I can serialize a Stateful session & at later point of time I can deserialize that back. For our usecase, the feature is very critical. Does Drools 5.0 support that ? DefaultMarshaller is not serializable. So once a Stateful session is serialized. At Later point of time, I am not able to read that back. I have attached my test files. Best Regards! Siddhartha _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users