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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15598

Admin app should not write empty validation query to server.xml for datasources.

           Summary: Admin app should not write empty validation query to
                    server.xml for datasources.
           Product: Tomcat 4
           Version: 4.1.18
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Webapps:Administration
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Dug up an interesting one with PostgreSQL JDBC drivers for 7.2 and 7.3.

If validationQuery parameter is in the configuration of the datasource but it's 
value is just <value></value>, DBCP is assigned the empty string and in turn 
attempts to execute it as SQL.  The resulting behavior is an infinite loop.

I'm not sure if this is technically a short coming in DBCP or if it's a problem 
with Tomcat.  I'm posting it here as the validationQuery should not be written 
as it is not initialized to any value.

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