[Solved] How to handle OutOfMemoryError in Java?

In this article, we will learn about Java OutOfMemoryError and the answers to the following questions :

1. What is OutOfMemoryError class in Java?
2. What are the various causes and corresponding fixes for OutOfMemoryError?
3. How to catch OutOfMemoryError in our application code?

The OutOfMemoryError is a common issue in Java applications, occurring when the JVM cannot allocate enough memory to fulfill a request. The OutOfMemoryError can lead to application crashes and affect overall performance. Proper memory management is critical in preventing it.

This article provides insights and strategies to handle and prevent this error in Java applications, ensuring efficient memory usage and optimal application performance.

1. Java OutOfMemoryError Class :
The OutOfMemoryError class is present in ‘java.lang‘ package and has been there since Java version 1.0. It extends VirtualMachineError class; hence, it is an unchecked exception, and we don’t have to declare it in a method or a constructor throws clause.

This issue is more due to the system’s limitation (heap memory space) rather than due to the programming mistakes made by the developer.

Constructors defined in this class: