Uninstall not removing application specific triggers due to sql error…

… while removing node group links.

1.  Remove conflicts before attempting to remove node group links.
2.  Don't swallow sql errors (log them, should determine whether we want to bubble up)

symmetric-core/src/main/java/org/jumpmind/symmetric/AbstractSymmetricEngine.java

@@ -87,6 +87,7 @@
 import org.jumpmind.symmetric.service.impl.ConfigurationService;
 import org.jumpmind.symmetric.service.impl.DataExtractorService;
 import org.jumpmind.symmetric.service.impl.DataLoaderService;
+import org.jumpmind.symmetric.service.impl.DataLoaderService.ConflictNodeGroupLink;
 import org.jumpmind.symmetric.service.impl.DataService;
 import org.jumpmind.symmetric.service.impl.IncomingBatchService;
 import org.jumpmind.symmetric.service.impl.LoadFilterService;
@@ -542,6 +543,12 @@ public synchronized void uninstall() {
             for (TriggerRouter triggerRouter : triggerRouters) {
                 triggerRouterService.deleteTrigger(triggerRouter.getTrigger());
                 triggerRouterService.deleteRouter(triggerRouter.getRouter());
+            }            
+
+            // need to remove all conflicts before we can remove the node group links
+            List<ConflictNodeGroupLink> conflicts = dataLoaderService.getConflictSettingsNodeGroupLinks();
+            for (ConflictNodeGroupLink conflict : conflicts) {
+            	dataLoaderService.delete(conflict);
             }
 
             // remove the links so the symmetric table trigger will be removed
@@ -552,12 +559,13 @@ public synchronized void uninstall() {
 
             // this should remove all triggers because we have removed all the
             // trigger configuration
-            triggerRouterService.syncTriggers();
-
+            triggerRouterService.syncTriggers();      
+            
         } catch (SqlException ex) {
-            // these tables must not exist
+        	//TODO: figure out what we really want to do here...
+            log.error("SQL Exception while trying to uninstall. " + ex.getMessage() );
         }
-
+        
         // remove any additional triggers that may remain because they were not in trigger history
         symmetricDialect.cleanupTriggers();