[news.eclipse.technology.memory-analyzer] Re: Classes from rt.jar loaded

[andreas.buchen@xxxxxxx (Andreas Buchen)]

Hi Satish,

your example will not work this way - the VM knows that your are not 
referencing s, v, ss, or the list after the Thread.sleep(). It will 
garbage collect those items.

> String s = new String("satish");
> Vector v = new Vector(10);
> ServerSocket ss = new ServerSocket();
> ConcurrentLinkedQueue list = new ConcurrentLinkedQueue();
> System.out.println("TestCL...");
> Thread.sleep(100000000);


Probably all class loaders reference the Vector from the system class 
loader.

Take this example: the class loader (not loaded by the system class loader 
itself) references a hash table.

Class Name                                                                 
          
---------------------------------------------------------------------
com.foo.loader.ResourceMultiParentClassLoader @ 0xa8d6338                 
|- <class> class com.foo.loader.ResourceMultiParentClassLoader @ 0xe38e780
|- parent sun.misc.Launcher$AppClassLoader @ 0xa8c3710                     
          
|- package2certs java.util.Hashtable @ 0xa8d63d8                           
          
|- classes java.util.Vector @ 0xa8d6400                                    
          
---------------------------------------------------------------------

If you have a question how to interpret a particular view of the Memory 
Analyzer, just go ahead and Ctrl-C the selected lines and copy and paste 
it to the forum.

Andreas.