Java

JavaFX program exit without Java JDK installed [SOLVED]

27-Aug-18 22:01

Member 13918755 wrote:
someone can help me?

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Re: Java cv

GiteHrudaya25-Nov-18 22:15

GiteHrudaya

25-Nov-18 22:15

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Valentinor25-Aug-18 9:22

25-Aug-18 9:22

Hi,

On my workstation the program I made is running well, but here I have Java JDK installed.
When I was done and tried to run it on a different machine, the program starts, and for a split second the GUI shows then the whole program closes itself. After some testing, I found out that the problem somehow is Java JDK.
If I install Java JDK on the testing machine, the program runs fine, even if I uninstall Java JDK after that, the program still runs, which makes me think it might add additional jars in Java folder. If I uninstall Java, and reinstall only java, the program again won't work unless I install Java JDK too.
Did anyone encountered this problem too, or knows a fix for it? Am I right about JDK actually adding additional jars in Java folder, which remain there even after JDK is uninstalled?

Here is a list of libraries my program uses, I marked them at the end with [] because I'm using multiple classes from them and the list would have been way too long if I was to add all of them:

import com.sun.glass []
import java.awt []
import java.io []
import java.net []
import java.text []
import java.time []
import java.util []
import javafx []

Also, I'm using a DLL file, but from my testing that one isn't the problem, as I said, the JDK is somehow.
Hope I explained the problem well enough, if not, I'll happily answer any other questions.
OS: Windows 10 x64 Pro on both machines.

Richard MacCutchan25-Aug-18 1:33

25-Aug-18 1:33

Any Java application should run on any system that has the correct JRE loaded. Are you sure that the version of the runtime on the test machine is the same as, or later than, the one on the development system?

Valentinor25-Aug-18 3:06

25-Aug-18 3:06

Yes, I'm sure, I tried it on a VM and on my laptop, and on both I have to do what I said in the main post.

Richard MacCutchan25-Aug-18 3:17

25-Aug-18 3:17

Well it is anyone's guess what your program is doing wrong. You will need to find a way to gather more information.

Valentinor25-Aug-18 3:18

25-Aug-18 3:18

I did a little more testing, and it seems that I need the JDK installed in order for it to load the DLL. That DLL only adds the minimize function to an undecorated stage, when clicked on taskbar.
The GUI shows for a split second because the DLL is loaded just after stage.show().
I'm loading and using it with:

System.load(System.getProperty("user.dir") + "\\Data\\Minimize_x" + windowsVersion + ".dll");
addMinimize(Window.getWindows().get(0).getNativeWindow()); //Native function

Richard MacCutchan25-Aug-18 3:28

25-Aug-18 3:28

I do not have a system available that I can test that. However I have used a similar construct in the past and it worked fine without the JDK. If you are certain that is the problem, and can reproduce it with a small test sample, then you should report it to Oracle.

Valentinor25-Aug-18 3:42

25-Aug-18 3:42

As I said, the DLL only adds that function, so I should be able to reproduce it with a simple blank stage.
Thanks.

Valentinor25-Aug-18 4:19

25-Aug-18 4:19

I just reproduced of the problem, but this time I even tried JDK 10, rather then 8 which I used in the main app, and has the same problem.
I added this one on drive, with jar and sources in format that can be read online without download.
Link in case you want to see

Richard MacCutchan25-Aug-18 5:47

25-Aug-18 5:47

OK. I have just run your code on my system which has JRE 8 and JDK 8 installed, and it runs fine. I then installed Java JRE 8 on my wife's system and again your code runs fine. So it does not look like it has anything to do with the absence of the JDK. I did notice in your Java code that you check for 32/64 bit and load a different DLL based on that setting; I wonder if that is part of the problem. Have you checked the eroriC.txt file for any error messages?

Richard MacCutchan25-Aug-18 4:35

25-Aug-18 4:35

One thing that might be worth trying in that code is to break it down into its constituent parts. However I cannot find the definition for the getNativeWindow method.

Valentinor25-Aug-18 4:55

25-Aug-18 4:55

The thing is, I tried to add the loading of the DLL in a try {} catch(Exception e){} block, and in catch to write in a file the message of that exception, but it doesn't write anything in the file. And I can't try to debug the program in Eclipse, because for that I'll need the JDK installed, and if I have that, then the program will run without a problem.

Richard MacCutchan25-Aug-18 6:12

25-Aug-18 6:12

Sorry, but I cannot reproduce the problem. There must be something else incompatible on the PC where it is failing, but I have no more ideas.

Valentinor25-Aug-18 7:24

25-Aug-18 7:24

I managed to find out what the problem was. Using catch Exception wasn't catching the execption, but using what jschell suggested (catch Throwable), I found out that the problem was the DLL files.
With Throwable I was getting dependency exception, so I looked up with "pestudio", and my DLL files, were using debug DLL's that come with Windows SDK not C++ Redistributable.

modified 25-Aug-18 13:31pm.

Richard MacCutchan25-Aug-18 8:29

25-Aug-18 8:29

Strange then that it worked on my alternate system which does not have JDK or C++ debug libraries. Or maybe that was a release version.

Valentinor25-Aug-18 8:46

25-Aug-18 8:46

Well, it was even weirder that it was working with JDK when my DLL files needed those debug C++.
And yeah, if you used my DLL files, and not build them using my code, then it shoudn't have worked. Maybe a program that was installed on that system, added them.
In any case, I'm glad I managed to figure it out, it was getting kinda annoying, having it work on a system, and not another. They need to change that option in Visual Studio, after all I used their "Release" mode, but I had to go in project settings too.