If you check the code for Platform.runLater() (see below), you will see that the exceptions are swallowed (lines 146 / 147), so a default uncaught exception handler won’t be able to catch them – based on that piece of code, I don’t think you have any options but to include try/catch blocks in your runnables. … Read more
I know this question is now a few years old, but the answers here were not enough for me to solve the problem. They only helped partially. http://www.filsa.net/2008/07/17/eclipse-java3d-and-javalibrarypath/ was also a bit helpful, but it was still not enough. Therefore I felt obliged to write a complete checklist to have Java3D work in Eclipse. A … Read more
I should note that the article you referenced is old, and that you should now use Exception::Class instead of Error.pm, which is quirky and tends to break (it’s what I call “black magick”). I should note that I am now the Error.pm maintainer, but I no longer recommend it or make use of it for … Read more
It looks like you are calling next even if the scanner no longer has a next element to provide… throwing the exception. while(!file.next().equals(treasure)){ file.next(); } Should be something like boolean foundTreasure = false; while(file.hasNext()){ if(file.next().equals(treasure)){ foundTreasure = true; break; // found treasure, if you need to use it, assign to variable beforehand } } // … Read more
I apparently was mistaken when I said the query did not contain any reserved words. The query I was using was selecting from another query in the Access Database. That other query had a reserved keyword that was causing the problem. BTW: The Access database engine runs in different modes, depending on whether it is … Read more
The difference between performing a general try/catch statement and catching a specific exception (e.g. a FileNotFoundException) typically depend on what errors you need to handle and what errors you don’t need to worry about. For instance: catch (Exception e) { //A (too) general exception handler … } The code above will catch EVERY exception that … Read more
Finally reached a conclusion on this issue: it was being caused by Proguard, or more specifically, because I didn’t have a propper Proguard configuration. It turns out Proguard was changing my Serializable‘s classes names, which makes Class.forName(className) fail. I had to reconfigure my proguard.cfg file adding the following lines: -keep class * implements java.io.Serializable -keepclassmembers … Read more
Section 5.4 of the draft Technical Report on C++ Performance is entirely devoted to the overhead of exceptions.
I believe what’s happening here is that the current JS event cycle is using the DefaultUncaughtExceptionHandler because that was the handler set at the start of the cycle. You’ll need to defer further initialization to the next event cycle, like this: public void onModuleLoad() { GWT.setUncaughtExceptionHandler(new ClientExceptionHandler()); Scheduler.get().scheduleDeferred(new ScheduledCommand() { @Override public void execute() { … Read more
The usual advice applies, only catch what you can handle. There’s a utility function named IsCriticalException inside the framework that’s pretty commonly used by parts of the framework code to decide whether or not to swallow an exception. Might as well go by that. It considers the following critical: NullReferenceException StackOverflowException (uncatchable) OutOfMemoryException ThreadAbortException ExecutionEngineException … Read more