Double clicking jar file wont execute after update JRE

Question

As the title says, my jar file don't executes when i double click on it.

Before I updated the JRE and exported the runnable jar file it worked perfectly fine.

But after the update when i extracted the same project not a single line of code runs.

I have tried the existing answers here with no luck so i decided to ask my own question. My project is a game with pictures, music and textfiles and yes they have the same paths from the working jar.

Regards

Edit:

So i moved my project to a new computer with JDK 1.8.0.77 and extracted a runnable jar file but without any difference. However on this computer I can extract another project containing pictures etc and it's working perfectly fine.

The problem might be in my code then but the error must be early because no display comes up and the process doesn't show under processes. How can i debug jar files?

Which operating system are you on? If Linux, have you set the Jar file as an executable? — Draken, Apr 20 '16 at 13:24
Also have a look a this question, that might help you: http://stackoverflow.com/questions/8511063/how-to-run-jar-file-by-double-click-on-windows-7-64 — Draken, Apr 20 '16 at 13:25
When you updated your JRE, did the update uninstall the older JRE versions? — Thraydor, Apr 20 '16 at 13:30
Windows 8, it's executable. I did not uninstall the other JRE versions. — Viktor Lindblad, Apr 20 '16 at 13:37
So the older versions are definitely still on your system? You have checked? Sometimes the update will offer to uninstall the older versions and you have to remove the tick from the box, it has nearly caught me out a couple of times. — Thraydor, Apr 20 '16 at 13:41
Did you try the answers in the link I posted, reseting your default program opener for .jar files? For example, as Stratwine said: `Right Click -> Properties -> Change -> C:\Program Files\Java\jre7\bin\javaw.exe` — Draken, Apr 20 '16 at 13:41
Yes the older version is on the system. Is it bad? Should i remove them? — Viktor Lindblad, Apr 20 '16 at 13:43
I always keep them. I need older versions for different apps etc — Thraydor, Apr 20 '16 at 13:46
Have you checked your JAVA_HOME path? That can sometimes cause a conflict. — Thraydor, Apr 20 '16 at 13:49
Nothing happens @draken. I have not checked JAVA_HOME path how do I do that? — Viktor Lindblad, Apr 20 '16 at 13:56
Define nothing happens, were you able to follow the steps and then when you double clicked on it, it did nothing? For setting JAVA_HOME, read up on the notes here: http://stackoverflow.com/questions/2619584/how-to-set-java-home-on-windows-7 — Draken, Apr 20 '16 at 13:59
I followed the steps and nothing happens when i double click. — Viktor Lindblad, Apr 20 '16 at 14:02
I followed the steps withouth sucess. I have edited my question now. — Viktor Lindblad, Apr 20 '16 at 17:23

score 0 · Accepted Answer · answered Apr 20 '16 at 20:44

0

So the problem was my code all along, one of my 100 classes was creating a textfile and it seems like the jar file crashes when it did.

Sorry for taking up your time but I appreciates your answers. Now I have better understandings using JRE/JDK and jar files.

Thanks

answered Apr 20 '16 at 20:44

Viktor Lindblad

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It's no problem, the main thing is that you learnt from it :) – Thraydor Apr 21 '16 at 07:24
Yes your right, but it feels like I could have sorted this out if I looked through my code properly. – Viktor Lindblad Apr 21 '16 at 09:32
It happens sometimes, at least you gained something from the experience – Thraydor Apr 21 '16 at 09:39

Double clicking jar file wont execute after update JRE

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