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Error "Communication Exception" After Upgrading P6 Integration API (Doc ID 1611819.1)

Last updated on DECEMBER 18, 2024

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version 8.3.1.0 and later
Information in this document applies to any platform.

Symptoms

When attempting to authenticate against the P6 Integration API the following error occurs:

SEVERE: Unable to connect to the Primavera server.
com.primavera.integration.network.NetworkException: Communication Exception
    at com.primavera.integration.client.DistributedSession.getDatabaseInstances(DistributedSession.java:98)
    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:597)
    at com.primavera.integration.client.Session.getDatabaseInstances(Session.java:315)
Original Exception:
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.io.InvalidClassException: com.primavera.integration.common.DatabaseInstance; incompatible types for field m_dbType
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:173)
    at com.primavera.integration.network.rmiserver.RemoteSessionImpl_Stub.getDBInstances(Unknown Source)
    at com.primavera.integration.client.DistributedSession.getDatabaseInstances(DistributedSession.java:94)
    
Communication Exception

 

 

Cause

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In this Document
Symptoms
Cause
Solution


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