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Memory Leak in Java

Sandhuya Sharma
2 min readMay 15, 2023

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A memory leak in Java occurs when an application allocates memory for objects but fails to release that memory when the objects are no longer needed. This can lead to an accumulation of unused memory over time, which can eventually cause the application to slow down, become unresponsive, or even crash due to an “Out of Memory” error.

Memory leaks can occur in Java when objects are not properly managed by the garbage collector. The garbage collector is responsible for identifying and removing objects that are no longer being used by the application. However, if objects are not properly dereferenced or have circular references, the garbage collector may not be able to identify them as unused and they will remain in memory.

To identify and fix a memory leak in Java, there are several steps that can be taken:

  1. Use profiling tools: Profiling tools such as VisualVM, JProfiler, and YourKit can help identify memory leaks by analyzing memory usage and identifying which objects are consuming the most memory.
  2. Check for static references: Static references to objects can prevent them from being garbage collected even if they are no longer in use. Check to ensure that objects are not being unnecessarily held in memory through static references.
  3. Check for circular references: If objects hold references to each other in a circular manner, they may not be eligible for garbage collection.
  4. Check to ensure that there are no circular references that are preventing…

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Sandhuya Sharma
Sandhuya Sharma

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