[Building Sakai] Running Java Applet from Resources

Tue Nov 27 12:10:57 PST 2012

Hi Kelly,

Did you ever get a response to your inquiry? 

I would not think Sakai would be set up to allow Java applets to run from the Resources area, that seems like it would be a potential security issue to me. But I'm not the expert.

Cheers,

Neal Caidin

Sakai CLE Community Coordinator
nealcaidin at sakaifoundation.org
Skype: nealkdin
AIM: ncaidin at aol.com

On Oct 17, 2012, at 5:53 PM, "Geng, Kelly" <gengx at miamioh.edu> wrote:

> Hi Dev list,
>  
> We had a faculty trying to run an Java Applet script from her Resources in Sakai. All the dependent class files are under the same directory as the launching html file. She got an “Incompatible magic value” error upon launching. Looking at the log it seems like everything went well up until the application started to connect our CAS server. I copied the log below(I red-highlighted our CAS server URL) and am wondering whether anyone has seen this before and know how to work around it. She claimed that the same script was running last semester (when we didn’t have CAS and was on 2.7.x instead of current 2.8.x version of sakai).
>  
> Thanks,
> Kelly
> Miami University
>  
>  
> network: Connecting https://niihka.muohio.edu/access/content/group/ffbe4f38-c9a5-46cd-9acb-b7d4a712f078/Modules/Module%20-%20Low%20level%20programming/simulation/NEWCPUSim.classwith proxy=DIRECT
> network: Connecting http://niihka.muohio.edu:443/ with proxy=DIRECT
> …
> security: Loading certificates from Deployment session certificate store
> security: Loaded certificates from Deployment session certificate store
> security: Checking if certificate is in Deployment denied certificate store
> network: Connecting https://niihka.muohio.edu/access/content/group/ffbe4f38-c9a5-46cd-9acb-b7d4a712f078/Modules/Module%20-%20Low%20level%20programming/simulation/NEWCPUSim.classwith cookie "__utma=40004414.470991547.1342969029.1348793119.1348840212.4; __utmz=40004414.1342969029.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); SaneID=134.53.7.196-1348498927383600; GB2TOKEN=9acaf8db--a9a9-eaff730025a9-43122cb01247e7684dd5c644872ba5bd; SESSID=OVZCMTIyNTkxOA=="
> network: Server https://niihka.muohio.edu/access/content/group/ffbe4f38-c9a5-46cd-9acb-b7d4a712f078/Modules/Module%20-%20Low%20level%20programming/simulation/NEWCPUSim.classrequesting to set-cookie with "JSESSIONID=eade0697-c823-454b-9c6a-bc93a97e.Niihka-03; Path=/; Secure; HttpOnly"
> network: Cache entry not found [url: https://niihka.muohio.edu/sakai-login-tool/container, version: null]
> network: Connecting https://niihka.muohio.edu/sakai-login-tool/container with proxy=DIRECT
> network: Connecting http://niihka.muohio.edu:443/ with proxy=DIRECT
> security: Loading certificates from Deployment session certificate store
> security: Loaded certificates from Deployment session certificate store
> security: Checking if certificate is in Deployment denied certificate store
> network: Connecting https://niihka.muohio.edu/sakai-login-tool/container with cookie "__utma=40004414.470991547.1342969029.1348793119.1348840212.4; __utmz=40004414.1342969029.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); SaneID=134.53.7.196-1348497383600; GB2TOKEN=9acaf8db-4b95-a9a9-eaff730025a9-43122cb01247e7c644872ba5bd; SESSID=OVZCUVZDMTIyxOA=="
> network: Server https://niihka.muohio.edu/sakai-login-tool/container requesting to set-cookie with "JSESSIONID=55883783-c7fa-4cb0.Niihka-03; Path=/; Secure; HttpOnly"
> network: Cache entry not found [url: https://muidp.muohio.edu/cas/login?service=https%3A%2F%2Fniihka.muohio.edu%2Fsakai-login-tool%2Fcontainer, version: null]
> network: Connecting https://muidp.muohio.edu/cas/login?service=https%3A%2F%2Fniihka.muohio.edu%2Fsakai-login-tool%2Fcontainer with proxy=DIRECT
> network: Connecting http://muidp.muohio.edu:443/ with proxy=DIRECT
> security: Loading certificates from Deployment session certificate store
> security: Loaded certificates from Deployment session certificate store
> security: Checking if certificate is in Deployment denied certificate store
> network: Connecting https://muidp.muohio.edu/cas/login?service=https%3A%2F%2Fniihka.muohio.edu%2Fsakai-login-tool%2Fcontainer with cookie "JSESSIONID=1ABB2411E999F13B9A1C0E8; __utma=40004414.470991547.1342969029.1348793119.1348840212.4; __utmz=40004414.1342969029.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); SaneID=134.53.7.196-1348498927383600; SESSID=OVZCUVZDMTkxOA=="
> network: Server https://muidp.muohio.edu/cas/login?service=https%3A%2F%2Fniihka.muohio.edu%2Fsakai-login-tool%2Fcontainer requesting to set-cookie with "JSESSIONID=6C4881D27BF080572CFE3; Path=/cas; Secure"
> network: Cache entry not found [url: https://niihka.muohio.edu/access/content/group/ffbe4f38-c9a5-46cd-9acb-b7d4a712f078/Modules/Module%20-%20Low%20level%20programming/simulation/, version: null]
> basic: error: Incompatible magic value 168430090 in class file NEWCPUSim.
> java.lang.ClassFormatError: Incompatible magic value 168430090 in class file NEWCPUSim
>                 at java.lang.ClassLoader.defineClass1(Native Method)
>                 at java.lang.ClassLoader.defineClass(Unknown Source)
>                 at java.security.SecureClassLoader.defineClass(Unknown Source)
>                 at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
>                 at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
>                 at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
>                 at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
>                 at java.lang.ClassLoader.loadClass(Unknown Source)
>                 at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
>                 at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
>                 at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
>                 at java.lang.Thread.run(Unknown Source)
> Ignored exception: java.lang.ClassFormatError: Incompatible magic value 168430090 in class file NEWCPUSim
> basic: Dialog type is not candidate for embedding
> basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter at 130fa6f
> security: Reset deny session certificate store
> basic: Dialog type is not candidate for embedding
> _______________________________________________
> sakai-dev mailing list
> sakai-dev at collab.sakaiproject.org
> http://collab.sakaiproject.org/mailman/listinfo/sakai-dev
> 
> TO UNSUBSCRIBE: send email to sakai-dev-unsubscribe at collab.sakaiproject.org with a subject of "unsubscribe"

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://collab.sakaiproject.org/pipermail/sakai-dev/attachments/20121127/1f46c8bc/attachment.html 