Keep reference to AS400 object to prevent object from being finalized

and closing underlying connection.

Signed-off-by: John Eberhard <[email protected]>

src/main/java/com/ibm/as400/access/AS400JDBCConnectionImpl.java

@@ -3550,6 +3550,7 @@ public void setProperties (JDDataSourceURL dataSourceUrl, JDProperties propertie
               as400.connectService (AS400.DATABASE);
             }
             systemName_ = as400.getSystemName();
+            as400PublicClassObj_ = as400;         /* Keep a reference so that the AS400 object is not garbage collected and finalized */ 
           }
           catch (AS400SecurityException e)
           {                            //@D5C