Checked exceptions have always been a controversial feature of the Java language.
Advocates claim they ensure checking & recovery from failures. Detractors say “catch” blocks can almost never recover from an exception, and are a frequent source of mistakes.
Meanwhile, Java 8 and lambdas are here. Are checked exceptions becoming obsolete in the Java world? Continue reading
Threading is easy in Java, but today I was reminded of another of its pitfalls.
In Java- or container-provided threads, unhandled exceptions from our code will be printed or logged to the console. Create your own Thread or use SwingWorker/ ThreadPoolExecutor, and it’s a different story..
Threaded code tends to die silently. Nothing on the console or logs. Unhandled exceptions are invisible, and leave very few clues. Let’s look at why.
Rossen Stoyanchev at Spring Framework is finally ready to tackle the thorny issue of @ModelAttribute inter-dependency.
The new annotation-based handlers allow easy definition of simple controllers, but when combined with JDK 7’s unpredictable ordering of reflected methods, problems could occur..