NIFI-574:

- Removing one redundant path annotation.
- Adjusting default logging due to known warning about other redundant path annotations that are required due to an issue with the version of Swagger being used.

nifi/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-resources/src/main/resources/conf/logback.xml

@@ -76,6 +76,9 @@
     <logger name="com.sun.jersey.spi.container.servlet.WebComponent" level="ERROR"/>
     <logger name="com.sun.jersey.spi.spring" level="ERROR"/>
     <logger name="org.springframework" level="ERROR"/>
+    
+    <!-- Suppress non-error messages due to known warning about redundant path annotation (NIFI-574) -->
+    <logger name="com.sun.jersey.spi.inject.Errors" level="ERROR"/>
 
     <!--
         Logger for capturing user events. We do not want to propagate these

nifi/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-api/src/main/java/org/apache/nifi/web/api/SystemDiagnosticsResource.java

@@ -67,7 +67,6 @@ public class SystemDiagnosticsResource extends ApplicationResource {
     @GET
     @Consumes(MediaType.WILDCARD)
     @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
-    @Path("") // due to a bug in swagger
     @PreAuthorize("hasAnyRole('ROLE_MONITOR', 'ROLE_DFM', 'ROLE_ADMIN')")
     @ApiOperation(
             value = "Gets the diagnostics for the system NiFi is running on",