/* ** ThreadLocal do not support inheritance 
* add by duyang 06 28 2019 
*/
Public class ThreadLocalTest {


/* * 
* InheritableThreadLocal child thread can access the parent thread variables; 
*/
//private static ThreadLocal Are=new ThreadLocal<> (a); 
Public static void main (String [] args) throws InterruptedException {
ThreadLocal Are=new ThreadLocal<> (a); 
Are set (called "lian"); 
System. The gc (); 
System. Out. Println (Thread. CurrentThread () + "" + are the get ()); 
//delete ThreadLocal 
//are. Remove (); 
} 
} 

16 lines of code and what value that GC no recycling ThreadLocal? Have a great god to

CodePudding user response:

Execution System. The role of the gc () function is just to remind or tell the virtual machine, wants a garbage collection, as to when to recycle depends on the virtual machine, and there is no guarantee that a certain recycle