Menu
Given an hypothetical utility class that is used only in program setup:
class MyUtils { private static MyObject myObject = new MyObject(); /*package*/static boolean doStuff(Params... params) { // do stuff with myObject and params... } } will myObject be garbage collected when it is no longer being used, or will it stick around for the life of the program?
385
Show activity on this post. The obvious cases for not using garbage collection are hard realtime, severely limited memory, and wanting to do bit twiddling with pointers.
gc() method: Runtime class allows the application to interface with the JVM in which the application is running. Hence by using its gc() method, we can request JVM to run Garbage Collector.
At a certain point in time, an event happens that triggers garbage collection. To clear the memory, application threads have to be stopped. This is where the work of your application stops and the next steps start. The garbage collector marks objects that are no longer used and reclaims the memory.
Static variables cannot be elected for garbage collection while the class is loaded. They can be collected when the respective class loader (that was responsible for loading this class) is itself collected for garbage.
Check out the JLS Section 12.7 Unloading of Classes and Interfaces
A class or interface may be unloaded if and only if its defining class loader may be reclaimed by the garbage collector [...] Classes and interfaces loaded by the bootstrap loader may not be unloaded.
142
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
