How to unload DLL in JNI

How to unload the DLL which is loaded using
System.loadLibrary()
namanc

I got the problem ...
The java program is abended and the it creates system abend event.
This is the exact scenario ...
I have one object which refers the existing the DLL and it also sends very big file to MQ.
When loading the DLL it is not creating any problem but if i send large file to MQ the java program is abending ...
I want to know what may be the problem ...
Is there any memory limit for an object ?
namanc

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How to unload DLL

Hello,
I am using LV 8.2 to call a DLL but I am facing a unload DLL problem: the result can not be cleared from the memory even after I closed the VI. Only way to unload the DLL is to shutdown the LV.
I was told to using VI server to call a subVI which deals with the DLL. But for our application, using VI server seems not practical. Is VI server the only way to solve this problem? Anyone has an idea about this? Thank you in advance.
---Julia

"LoadLibrary (and FreeLibrary) and GetProcAddress " are used in C/C++, or CIN, right? 
These are actually simple dll's API's. You can use them in C/C++ or CIN (CIN's are obsolete), but also in LabVIEW. Only problem is that you can't call a pointer to a function in native LabVIEW. Check out Dynamic DLL.zip in the last message of this thread:
http://forums.ni.com/ni/board/message?board.id=170&message.id=39381&view=by_date_ascending&page=1
"I thought I have to use two mechines (IP/TCP) for VI server application. Just find out it may be locally controlled. I will give a try."
This won't solve the leak. The leak will still be there, but on another machine.
"PS: Sorry for the duplicated post.; I didn't know how to delete the other one."
That's OK. But if you can't delete it, at least edit it so it says "Sorry, duplicate post". If you don't, people might spend time answering questions that are already answered.
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How to unload .dll from java application.

Hi,
I want to unload .dll (Library) for an specific event (Custom event).
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You can't.
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Hi! All,
I have an applet which copies 3 dlls from the server
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Hi
I have the same problem too. In my case i cannot unload the dll using native method as the dll and the code that calls it will be a 3rd party stuff. I must be able to dynamically update the class and the dll..
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Hi all,
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How to unload library

Hi,
How to unload a library loaded by : System.load(...)?
Many thanks.

I don't think you can.
google?
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How to incorporate .dll files and java

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How to add dll file to EAR project

hi,
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HI
GOOD
GO THROUGH THESE LINKS
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2583bbf9-0701-0010-8db5-a558e0c6f1fe
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How to develop dll towards VB and Delphi for vi's of a third-part usb device

Hello, dear lv'ers:
Recently i am evolved in a project where i want to reuse my developed ac measurement modules (certainly in .vi format) in target computers. The related information has been collected below:
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Jun Lu
Member of Technical Staff in State Key Laboratory of Magnetism
Beijing National Laboratory for Condensed Matter Physics
Institute of Physics, Chinese Academy of Sciences
100190 Beijing, P.R. China
http://www.instrument.com.cn/ilog/handsomeland/

Probably, i have just got a solution for this problem.
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I compile this code to dll file with VC++2010 filename is test_dll.dll .
#include "stdafx.h"
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#include <Windows.h>
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Go to Solution.

The issue you are having is that LabVIEW is not capable of using C++ DLLs directly. It only handles C DLLs. This does not mean that if you you cannot use the DLL if it's compiled with the C++ compiler as opposed to the C compiler. Rather, it means that you must take extra steps in order to use it from LabVIEW. The primary issue is that of name mangling or adornment. This is discussed here: http://zone.ni.com/devzone/cda/tut/p/id/4877. Basically you need to prepend extern "C" in front of your prototypes in your header files. I would also suggest reviewing this article: https://decibel.ni.com/content/docs/DOC-14564.

How to Unload Classes?

i have created custom classloader. now i want to unload classes those are loaded by custom classloader.
i know that the classes will be unloaded when its classloader is unloaded. so i want to know how to unload cusotm classloader.
In ClassLoader class there is one static inner class it has unload method . but we can not access that method from custom classloader.

as a rule of thumb,
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a classloader gets unloaded once there are no reachable references to it exist in the system.
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How to unload the iPad iPhone picture on the Internet?

How to unload the iPad iPhone picture on the Internet? Why does the button "Upload Photos" on the iPad iPhone is not activated?

Ah, I understand the problem, and YES , that is a problem with the iPad, since there is no true File System within the iPad, there's no way to do what you're trying (at least that I know). I've had my iPad since May 2010, and have never been able to get past that.
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Sorry to be the one to let you know that.
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How to unload DLL in JNI

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