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Posted to dev@commons.apache.org by bu...@apache.org on 2005/10/20 13:18:44 UTC

DO NOT REPLY [Bug 37181] New: - SQLNestedException thrown by server causes client ClassNotFoundException.

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http://issues.apache.org/bugzilla/show_bug.cgi?id=37181

           Summary: SQLNestedException thrown by server causes client
                    ClassNotFoundException.
           Product: Commons
           Version: unspecified
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Dbcp
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: andreas.krueger@dv-ratio.com


This is a GUI client / application server / database server application.

On the GUI client side, we see java.lang.ClassNotFoundException:
org.apache.commons.dbcp.SQLNestedException.

This happens when the database server is down, DBCP cannot connect to the
database, and throws a org.apache.commons.dbcp.SQLNestedException.

Our application server code sends the java.sql.SQLException it sees to the
client via RMI.

However, on the client, we have not provided commons-dbcp.jar.

And I don't think we should - DBCP is server code.

But, when the client does not have SQLNestedException's class file, the attempt
to de-serialize it results in the ClassNotFoundException we've been seeing.

Even old http://java.sun.com/j2se/1.3/docs/api/java/sql/SQLException.html has
the facilities that SQLNestedExcepion offers: It is able to chain another
SQLException to itself. So while SQLNestedException clearly causes problems, I
don't understand what DBCP gains from it.

What would we loose if it were scratched?

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