Understanding memory management with Caching Objects in Memory

This is a common problem. How much should we cache in memory? Will we run into Out Of Memory Errors?

I suggest you have a look at the SoftReference class in Java. It is an excellent construct that can save you this OOM headache.

Articles:

1. Implementing a SoftReference-based HashMap


2. SoftReference, WeakReference, and WeakHashMap in Java


3. Garbage Collection


4. Java: Performance Tuning and Memory Management