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Thoriin



Joined: Apr 15, 2011

Post   Posted: Apr 28, 2021 - 22:20 Reply with quote Back to top

Hello
Client don't want to start, explanation is :

Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.

Seems it is this one :
Jar found at /home/bruce/.cache/icedtea-web/cache/6/https/fumbbl.com/FFBClient/live/org.osgi.core-4.3.0.jarhas been verified as UNSIGNED
Apus



Joined: Dec 21, 2017

Post   Posted: Apr 28, 2021 - 23:18 Reply with quote Back to top

I run FUMBBL on a Chromebook and recently I have found I can rarely get onto the client using it.

It sounds like I had a similar error message to you.

As I couldn't resolve the problem, I've gone back to using my old laptop. Sad
stowelly



Joined: Mar 16, 2017

Post   Posted: Apr 29, 2021 - 12:03 Reply with quote Back to top

This came up on discord yesterday.

seems the latest update has set to default that the jars need to be signed. first answer here will see you right Very Happy https://unix.stackexchange.com/questions/143805/running-unsigned-javaws-code
The_Carthaginian



Joined: Mar 05, 2015

Post   Posted: Apr 29, 2021 - 13:28 Reply with quote Back to top

stowelly wrote:
This came up on discord yesterday.

seems the latest update has set to default that the jars need to be signed. first answer here will see you right Very Happy https://unix.stackexchange.com/questions/143805/running-unsigned-javaws-code


Yep, I commented out the lines containing
Code:
disabledAlgorithms

and that fixed it.
Thoriin



Joined: Apr 15, 2011

Post   Posted: Apr 29, 2021 - 19:41 Reply with quote Back to top

Thanks, that seems fixed too
starnovi



Joined: Dec 12, 2007

Post   Posted: May 07, 2021 - 19:09 Reply with quote Back to top

yeah, had the same issue .... had to comment disabledAlgoriths lines (2) out and it's working now
VillainousIntent



Joined: Jun 01, 2015

Post   Posted: May 07, 2021 - 19:56 Reply with quote Back to top

Gotta sign them jars
Lyracian



Joined: Oct 29, 2015

Post   Posted: May 08, 2021 - 17:39 Reply with quote Back to top

I had to follow the second option on Ubuntu. Posting here in case it helps others as took me ages to find the right file.

Security Fix #1
~/.config/icedtea-web/deployment.properties
change
deployment.security.level=ASK_UNSIGNED
to
deployment.security.level=ALLOW_UNSIGNED

Security Fix #2
/etc/java-11-openjdk/security/Java.security
Had to chmod the file to edit and then remove MD5 from
jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024

_________________
Nuffle wills it.

Lyracian.
Luizda



Joined: Aug 24, 2007

Post   Posted: Jun 06, 2021 - 13:02 Reply with quote Back to top

Security fix #2 works for me (I'm using Ubuntu 20.04), thank you!!!
Subs



Joined: Jun 12, 2013

Post   Posted: Jun 07, 2021 - 23:29 Reply with quote Back to top

Same here for fix #2! Thx!
miguej



Joined: Mar 14, 2018

Post   Posted: Jun 14, 2021 - 21:37 Reply with quote Back to top

OpenWebStart it is also a great solution for all OSes (win/linux/mac)

https://openwebstart.com/
det



Joined: Oct 01, 2017

Post   Posted: Aug 24, 2021 - 14:42 Reply with quote Back to top

I tried the old&usual edits with iced tea & java.security but none worked on manjaro 21,
ended up uninstalling them both (iced tea&openjdk), enabled the AUR repos and installed oracle java 8 runtime environment LTS...all good.

then had to switch back to ubuntu due to other more important issues that manjaro gave me and...again, tried all the hacks here and it just wouldn't work...then tried OpenWebStart and it's working.
DonnyRainboe



Joined: Sep 13, 2011

Post   Posted: Aug 25, 2021 - 01:41 Reply with quote Back to top

VillainousIntent wrote:
Gotta sign them jars


Java loves a Jar. This I know.
truckerpunk



Joined: Dec 04, 2007

Post   Posted: Dec 13, 2021 - 18:46 Reply with quote Back to top

I can't open the client. I get the same error as mentioned.

Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.

I edited both files mentioned by Lyracian, and I'm running openWebStart 1.5.0
Still no luck Sad

Running elementaryOS 5.1.7 Hera
Christer



Joined: Aug 02, 2003

Post   Posted: Dec 13, 2021 - 20:36
FUMBBL Staff
Reply with quote Back to top

All the jar files involved should be signed. Check with:

jarsigner -verify name-of-file-jar

Perhaps you don't have the root certificate in your trusted roots store. Something you can explore.

Note, though, that FFB officially only supports the official Oracle java runtime (java.com). Very hard to support platforms I don't have easy access to.
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