What is Eden Space ? Eden Space is a part of Young Generation in the Java heap memory. This is where newly created objects are stored. Objects added to Eden Space receive an age counter that determines when they move to Old Generation. This age counter is checked during every Minor Garbage Collection even while the object is still there. Every time Minor Garbage Collection runs, it checks objects in Eden Space for either garbage collection or for moving to S0/S1 Survivor Space <!--SR:!2025-11-20,2,230-->