How does Java Garbage collector handle self-reference?

by

Garbage collectors which rely solely on reference counting are generally vulnerable to failing to collection self-referential structures such as this. These GCs rely on a count of the number of references to the object in order to calculate whether a given object is reachable.

Non-reference counting approaches apply a more comprehensive reachability test to determine whether an object is eligible to be collected. These systems define an object (or set of objects) which are always assumed to be reachable. Any object for which references are available from this object graph is considered ineligible for collection. Any object not directly accessible from this object is not. Thus, cycles do not end up affecting reachability, and can be collected.

See also, the Wikipedia page on tracing garbage collectors.

More Related Contents:

  1. What is the difference between Java Garbage collection and C++ object destruction? [closed]
  2. How can I read a large text file line by line using Java?
  3. Why is it bad practice to call System.gc()?
  4. How to force garbage collection in Java?
  5. How does Java Garbage Collection work with Circular References?
  6. Does assigning objects to null in Java impact garbage collection?
  7. Java Thread Garbage collected or not
  8. When will a string be garbage collected in java
  9. Garbage collector in java – set an object null
  10. In Java, when does an object become unreachable?
  11. How to monitor Java memory usage?
  12. Circular References in Java
  13. How can I avoid garbage collection delays in Java games? (Best Practices) [closed]
  14. What is the actual memory place for static variables?
  15. kubernetes pod memory – java gc logs
  16. When Is The Object Eligible For Garbage Collection?
  17. Does G1GC release back memory to the OS even if Xms = Xmx?
  18. Know of any Java garbage collection log analysis tools? [closed]
  19. Why does the JVM require warmup?
  20. Can you get basic GC stats in Java?
  21. Will stream classes or connections considered as a resource leak in Java
  22. Why is finalize not being called?
  23. Garbage collection on intern’d strings, String Pool, and perm-space
  24. How to calculate HashMap memory usage in Java?
  25. Java Collections and Garbage Collector
  26. What is the Metadata GC Threshold and how do I tune it?
  27. Java GC (Allocation Failure)
  28. Default garbage collector for Java 8
  29. Measuring time spent on GC
  30. When does Java’s garbage collection free a memory allocation?

Leave a Comment