Re: Calling the garbage collector.

["BGB" <cr88192@hotmail.com>]

----- Original Message ----- 
From: "Andrew Haley" <aph@redhat.com>
To: "abhishek desai" <abhi00@gmail.com>
Cc: <java@gcc.gnu.org>
Sent: Monday, July 27, 2009 3:07 AM
Subject: Re: Calling the garbage collector.


> On 07/27/2009 11:41 AM, abhishek desai wrote:
>> Hi,
>> 
>> I have a simple java program to test the garbage collection. It has
>> the two java files shown below.
>> 
>> TestClass.java
>> 
>> public class TestClass {
>>         protected void finalize() throws Throwable {
>>                 System.out.println("Java TestClass finalizer called.");
>>         }
>> }
>> 
>> 
>> HelloWorld.java
>> 
>> import TestClass;
>> 
>> class HelloWorld
>> {
>>         public static void main(String args[]) {
>>                 System.out.println("HelloWorld\n");
>> 
>>                 TestClass a =  new TestClass();
>>                 a = null;
>>                 System.gc();
>>         }
>> }
>> 
>> 
>> When I compile this using javac to a class file and run the bytecode
>> using the 'java' interpreter, the finalize funtion for TestClass.java
>> is called.
>> When I compile the same set of files using gcj to machine code, the
>> finalizer is not called. Can any one tell me why this happens and what
>> I will have to do to get the finalizer called when object is no longer
>> used.
> 
> The finalize will be called when the object is collected.  When the
> object actually gets collected is not defined, and is not guaranteed
> to happen before the program exits.  Also, there is no absolute
> guarantee that the object will ever be collected.
> 

hmm...

maybe Java needs 'delete'?...


> Andrew.
>