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Very odd connection error

 
Simon Machin
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Posts: 5
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When I run a program that connects to a DB2 backend on it's own, it connects with no problems. When I use the class from another program (the calling class is running inside a jar file) it produces this error. All the properties are the same:
COM.ibm.db2.jdbc.DB2Exception: [IBM][JDBC Driver] CLI0600E Invalid connection handle or connection is closed. SQLSTATE=S1000
at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.check_return_code(SQLExceptionGenerator.java:417)
at COM.ibm.db2.jdbc.app.DB2Connection.connect(DB2Connection.java:421)
at COM.ibm.db2.jdbc.app.DB2Connection.<init>(DB2Connection.java:324)
at COM.ibm.db2.jdbc.app.DB2Driver.connect(DB2Driver.java:352)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:172)
at signet.internet.catalogueutils.DeleteFreeProduct.<init>(DeleteFreeProduct.java:71)
at signet.internet.catalogueutils.DeleteFreeProduct.getInstance(DeleteFreeProduct.java:105)
at signet.util.SKUImport.SKUFileWatcher.processFileArrived(SKUFileWatcher.java:159)
at signet.util.FileWatcher.notifyFileArrived(FileWatcher.java:227)
It falls over at this line

I'm utterly stumped, any suggestions?
Cheers
James
 
martin samm
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i presume you're running it on the same machine? i.e. can the machine giving the error 'see' the database? Also if it is a different database, is it restricted by IP? I'm not used to DB2, but certainly the above for Oracle would suggest the database has been brought down.
 
It is sorta covered in the JavaRanch Style Guide.
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