Thoriin
Joined: Apr 15, 2011
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  Posted:
Apr 28, 2021 - 22:20 |
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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 |
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Apus
Joined: Dec 21, 2017
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  Posted:
Apr 28, 2021 - 23:18 |
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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](./modules/PNphpBB2/images/smiles/icon_sad.gif) |
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stowelly
Joined: Mar 16, 2017
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  Posted:
Apr 29, 2021 - 12:03 |
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The_Carthaginian
Joined: Mar 05, 2015
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  Posted:
Apr 29, 2021 - 13:28 |
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Yep, I commented out the lines containing
and that fixed it. |
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Thoriin
Joined: Apr 15, 2011
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  Posted:
Apr 29, 2021 - 19:41 |
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Thanks, that seems fixed too |
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starnovi
Joined: Dec 12, 2007
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  Posted:
May 07, 2021 - 19:09 |
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yeah, had the same issue .... had to comment disabledAlgoriths lines (2) out and it's working now |
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VillainousIntent
Joined: Jun 01, 2015
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  Posted:
May 07, 2021 - 19:56 |
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Lyracian
Joined: Oct 29, 2015
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  Posted:
May 08, 2021 - 17:39 |
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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. |
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Luizda
![](./images/avatar/010.gif)
Joined: Aug 24, 2007
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  Posted:
Jun 06, 2021 - 13:02 |
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Security fix #2 works for me (I'm using Ubuntu 20.04), thank you!!! |
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Subs
![](./modules/PNphpBB2/images/avatars/upload/516403016575ee4642a6b0.jpg)
Joined: Jun 12, 2013
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  Posted:
Jun 07, 2021 - 23:29 |
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Same here for fix #2! Thx! |
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miguej
Joined: Mar 14, 2018
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  Posted:
Jun 14, 2021 - 21:37 |
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det
Joined: Oct 01, 2017
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  Posted:
Aug 24, 2021 - 14:42 |
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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. |
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DonnyRainboe
Joined: Sep 13, 2011
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  Posted:
Aug 25, 2021 - 01:41 |
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VillainousIntent wrote: | Gotta sign them jars |
Java loves a Jar. This I know. |
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truckerpunk
![](./modules/PNphpBB2/images/avatars/upload/190594859250b8920a320d2.png)
Joined: Dec 04, 2007
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  Posted:
Dec 13, 2021 - 18:46 |
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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
Running elementaryOS 5.1.7 Hera |
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Christer
![](./modules/PNphpBB2/images/avatars/upload/212093185457642fe6c6ee4.jpg)
Joined: Aug 02, 2003
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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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