Memory Leaks In Java - How To Fix Them?

Java has a built-in mechanism for detecting memory leaks, which helps prevent problems that could cause your program to crash.

What Are Memory Leaks?

A memory leak occurs when an object allocates more memory than it needs. This means that the object has allocated some memory, but it hasn't released it yet. As a result, the system runs out of available memory and starts swapping data into disk storage.

How Do They Occur?

Memory leaks can occur at any point during the life cycle of an object. However, the most common cause of memory leaks is forgetting to call the appropriate methods to free up memory.

How Can You Prevent Them?

There are two main ways to prevent memory leaks:

1) Make sure that every method that allocates memory calls the appropriate method to free up the allocated memory.

2) If you use a garbage collector, make sure that it runs regularly so that it can detect and clean up memory leaks.

How To Find Out If There Is A Memory Leak?

You can find out whether there is a memory leak by using a memory analyzer such as JProfiler. This will show you where the memory has been allocated and how much memory each allocation takes up. It also shows you what methods allocate and deallocate memory.

To know more about steps on how to prevent memory leaks in Java read our detailed blog here.