I always try to reduce levels of nesting for readability and maintainability. If you have n try/catch blocks, each handling the same type of exception, why not refactor the code that can throw the exception into methods…it would look something like: try { firstBatchOfTricky(); secondBatchOfTricky(); …. nthBatchOfTricky(); } catch (ItWentBoomException e) { // recover from … Read more
I believe this is what you need: catch (Exception e) { Log.e(TAG,Log.getStackTraceString(e)); }
Have you tried setting: echo “1” >/proc/sys/net/ipv4/tcp_tw_reuse and/or echo “1” >/proc/sys/net/ipv4/tcp_tw_recycle These settings may make Linux re-use the TIME_WAIT sockets. Unfortunately I can’t find any definitive documentation.
I even tried to achieve the goal using javascript XMLHttpRequest() var xhttp= new XMLHttpRequest(); try{ xhttp.onreadystatechange = function() { console.log(xhttp); if (xhttp.readyState == 4 && xhttp.status == 0) { alert(“Unknown Error Occured. Server response not received.”); } }; xhttp.open(“POST”, “http://localhost:8080/data”, true); xhttp.send(); }catch(e){ console.log(‘catch’, e); } Above snippet only gives generic error handling, while I … Read more
Important note The following discussion assumes that we are talking about code structured as in the example above: no matter which alternative is chosen, an exception will cause the method to logically stop doing whatever it was in the middle of. As long as you intend to do the same thing no matter which statement … Read more
I’d suggest checking for an inner exception. If there isn’t one, check your logs for the exception that occurred immediately prior to this one. This isn’t a web-specific exception, I’ve also encountered it in desktop-app development. In short, what’s happening is that the thread receiving this exception is running some asynchronous code (via Invoke(), e.g.) … Read more
The answer is that this is the (somewhat surprising) semantics of imprecise exceptions When pure code can be shown to evaluate to a set of exceptional values (i.e. the value of error or undefined, and explicitly not the kind of exceptions generated in IO), then the language permits any value of that set to be … Read more
We found the answer. We looked into our web logs. It showed that we were receiving some weird http actions (verbs/methods) like OPTIONS, PROPFIND and HEAD. This seems to the cause of some of theses exceptions. This explains why it was intermittent. We reproduced the issue with the curl.exe tool: curl.exe -X OPTIONS http://localhost/v2.3.1.0/(S(boztz1aquhzurevtjwllzr45))/Form/Fill/273 curl.exe … Read more
I just had this problem and resolved it by adding the namespace to the service name, e.g. <service name=”TechResponse”> became <service name=”SvcClient.TechResponse”> I’ve also seen it resolved with a Web.config instead of an App.config.
There are certain circumstances where they’re a good idea, e.g. one try/catch for the whole method and another inside a loop as you want to handle the exception and continue processing the rest of a collection. Really the only reason to do it is if you want to skip the bit that errored and carry … Read more