Main Causes of Memory Leaks in Java

There are many causes of memory leaks in Java. Some of the most common causes include:

Static fields

Static fields are variables that are shared by all instances of a class.

Unclosed resources

When you open a resource such as a database connection or a file, the Java Virtual Machine (JVM) allocates memory for that resource.

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Cyclic references

A cyclic reference is a situation where two objects refer to each other.

Improper use of collections

Collections such as ArrayList and HashMap can lead to memory leaks if they are not used properly.

Poorly written code

Memory leaks can also be caused by poorly written code.

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