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Miceycraft
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2022-05-30 09:23:47
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2017-03-08 09:05:23
3 votes, rating 6
Trouble opening new client.(Fix)
Christer kindly posted a solution for this on the forums so just wanted to put it here as well as the solution that worked for me personally.

Problem

Mac Snow Leopard 10.6.1 -- there is an unsigned entry, fantasyfootballclient.jar and so the game will not load at all.

Solution One (Christer)

The FFB Client is explicity compiled for the latest Java version that runs on OS X Snow Leopard in order to support this configuration. The problem here is very likely that the new client is signed with a new code signing certificate which was created after Oracle stopped supporting and updating Java 1.6.

Now, this isn't an impossible problem to solve:

1. Find and download the correct root CA certificate.
I could of course provide this to you, but root CA certificates are pretty important in terms of security and you shouldn't trust *anyone* to provide you with one. Instead, I'll walk you through how to get hold of it:

1.1. https://support.comodo.com/index.php?/Knowledgebase/List/Index/71
Comodo is the Certificate Authority I use to get code signing certificates. If you don't already know who they are, I recommend that you do a search and make sure you get a feel for Comodo as a CA.

1.2. Click the link for "[Root] Comodo RSA Certification Authority (SHA-2)"
This is the root certificate that Comodo uses for code signing, and the one that is missing from Java 1.6.

1.3. Verify that the serial number is "4c:aa:f9:ca:db:63:6f:e0:1f:f7:4e:d8:5b:03:86:9d"
This ensures that the certificate is the correct one.

1.4. At the bottom of the page, click the "comodorsacertificationauthority.crt (2.04 KB)" link.
Save the file in a suitable location.

2. Import this new root CA to the Java certificate store
I am not 100% sure that the following will be precise, as my Mac doesn't run Snow Leopard (and my Macbook Air doesn't either). It should be close though.

2.1. Open System Preferences -> Java
The System Preferences is, of course, in the apple menu, top left on your screen

2.2. Switch to the Security tab

2.3. Click the "Manage Certificates" button

2.4. In the Certificate type dropdown, select "Signer CA"

2.5. Click the "Import" button

2.6. At the bottom of the load panel, switch File Format to "All Files"

2.6. Locate the file you downloaded in step 1.4

2.7. Click on the file, and then the "Open" button
This should make the Comodo certificate show in the list.

2.8. Click "Close", "Ok" and close the Java control panel

Solution Two (Miceycraft - in addition to above)

The client was attempting to run using the wrong application:
(java)

OS:/Program Files (x86)/Java/jre1.8.0/bin/java

instead of (javaws)

OS:/Program Files (x86)/Java/jre1.8.0/bin/javaws

Go into setting and ensure that .jnlp opens in javaws (wherever this may be found on your computer - mine is a bit of a mess due to multiple OS and settings)

Thanks

Hope this helps people. And as always Christer thankyou so much for everything you do for this site everyday and allowing us to waste so many hours here! Thanks for providing a fix so quickly.
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Comments
Posted by Garion on 2017-03-08 11:41:16
:( was hoping you had found a solution. I'm on Snow Leopard but these instructions don't match what I can do. Up to 2.2 I am fine, but there is no Manage Certificates button in my security tab. The only button says 'open keychain access'
Posted by Christer on 2017-03-08 12:05:40
Garion, get in touch with me on Discord and I'll help you out. It can be solved even through keychain access..
Posted by pythrr on 2017-03-09 18:51:39
i just updated java to the most recent version and it fixed it