Java doc.

src/main/java/ch/psi/daq/queryrest/controller/QueryRestController.java

@@ -105,6 +105,7 @@ public class QueryRestController {
     * 
     * @param channelName part of (or full) channel name
     * @return Collection of channel names matching the specified input channel name
+    * @throws Throwable in case something goes wrong
     */
    @RequestMapping(value = CHANNELS + "/{channelName}", method = {RequestMethod.GET},
          produces = {MediaType.APPLICATION_JSON_VALUE})