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Showing posts with the label Java 7

Observability Done Right: Best Practices and Anti-Patterns for Effective System Monitoring

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  WHAT Observability is a concept that refers to the ability to gain insights into the behavior and performance of complex systems. In the context of software engineering, observability involves the collection, analysis, and visualization of data from software applications, infrastructure, and other components of a system. In the animal kingdom, observability plays a critical role in survival, allowing animals to monitor their surroundings, detect threats, and find food. Dolphins use echolocation to observe their surroundings. They emit high-frequency sounds that bounce off objects, allowing them to create a 3D map of their environment. Thanks for reading Knowledge Cafe! Subscribe for free to receive new posts and support my work. Subscribed WHY In today's era, architectures are becoming increasingly large, complex, and fast-paced due to the faster development and deployment of software by distributed teams with the help of DevOps, continuous delivery, and agile development methodo...
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Java 7-Precise Rethrow Exception

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Previously, rethrowing an exception was treated as throwing the type of the catch parameter. For example, let's say that your try block could throw a ParseException or an IOException . To intercept all exceptions and rethrow them, you would have to catch Exception and declare your method as throwing an Exception . This is "imprecise rethrow", because you are throwing a general Exception type (instead of specific ones) and statements calling your method need to catch this general Exception . This is illustrated below: //imprecise rethrow. //must use "throws Exception" public static void imprecise() throws Exception{ try { new SimpleDateFormat("yyyyMMdd").parse("foo"); new FileReader("file.txt").read(); } catch (Exception e) { System.out.println("Caught exception: " + e.getMessage()); throw e; } } However, in Java 7, you can be more precise about the exception types being rethr...
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