Performance impact of java.lang.System.getProperty()

'java.lang.System.getProperty()' is a common API used by Java developers to read the System properties that are configured during application startup time. i.e. when you pass "-DappName=buggyApp" as your application's startup JVM argument, the value of the 'appName' system property can be read by invoking the 'java.lang.System.getProperty()'. Example: public static String getAppName() { String app =... Continue Reading →

Chaos Engineering – Simulating OutOfMemoryError

In the series of chaos engineering articles, we have been learning to simulate various performance problems. In this post, let's discuss how to simulate 'java.lang.OutOfMemoryError: Java Heap space' problem. This 'java.lang.OutOfMemoryError: Java Heap space' will be thrown by the application when the application generates more objects than the allocated heap size.  Java OutOfMemoryError Program Here... Continue Reading →

Buggy App – Simulate performance problems

Buggy App is a simple java application that simulates different performance problems like Memory Leak, OutOfMemoryError, CPU spike, thread leak, StackOverflowError, deadlock, unresponsiveness, ... Using this application, you can simulate various performance problems in your environment. Here are a few use cases where Buggy App can be used:  a. You can configure and launch Buggy... Continue Reading →

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