Clear details on Java collection ‘Clear()’ API

Several of us might be familiar with the clear () API in Java collections framework. In this post, let’s discuss…

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Java Static Synchronized method behavior

In our earlier post, we learnt that when a method is synchronized, only one thread will be allowed to enter…

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Can threads execute different synchronized methods on same object?

In our earlier post, we learnt that when a method is synchronized only one thread will be allowed to enter…

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Simulating & troubleshooting StackOverflowError in Scala

In this series of simulating and troubleshooting performance problems in Scala, let’s discuss how to simulate StackOverflowError. StackOverflowError is a…

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Simulating & troubleshooting BLOCKED threads in Kotlin

In this series of simulating and troubleshooting performance problems in Kotlin, let’s discuss how to make threads go into BLOCKED…

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Simulating & troubleshooting CPU spike in Kotlin

In this series of simulating and troubleshooting performance problems in Kotlin articles, let’s discuss how to simulate CPU consumption to…

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Troubleshooting deadlock in an Apache opensource library

Apache PDFBox is a popular open-source library that facilitates java applications to work with PDF documents. Recently we encountered a…

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Chaos Engineering – Metaspace OutOfMemoryError

JVM memory has following regions:  a. Young Generation b. Old Generation c. Metaspace d. Others region When you encounter ‘java.lang.OutOfMemoryError:…

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Inspect the contents of the Java Metaspace region

JVM Memory has following regions: a. Young Generation b. Old Generation c. Metaspace d. Others region To see what objects…

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