Logging output will be directed to the Forge log. Non-fatal warning messages may be seen here. For example, if a column handler encounters some sort of stream-reading error, the following log message would appear in the forge log file:

WARN    09/22/14 14:00:49.958 UTC		FORGE      {forge,baseline}: (com.endeca.soleng.itl.jdbc.AdvancedJDBCColumnHandler): Could not read data from LONGVARCHAR column “text”: out of memory

The record returned for this row will have a null value for the property in question. Processing will continue with the next row in the SQL query result. The only fatal errors which stop Forge from running will occur if an unsupported column type is encountered. Unsupported Java SQL column types include the following:

If any of these column types are returned in the SQL result, Forge will produce an error message like the following:

ERROR   07/31/14 13:29:07.903 UTC FORGE {forge,baseline}: (AdapterRunner): Unsupported Java SQL column type ARRAY