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using Protege as an applet

Posted on 2006-06-12
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Last Modified: 2012-06-21
I'm trying to run Protege (http://protege.stanford.edu/) as an applet. However, when I configure it to use the DB it gives me this stack trace. Do I need to sign the applet or something? This applet will only be used internally at our company, so it's acceptable if we have to do something on each user's machine, but it'd obviously be preferable if we could do it on the server side.

java.security.AccessControlException: access denied (java.util.PropertyPermission oracle.net.wallet_location read)
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
    at java.lang.System.getProperty(Unknown Source)
    at oracle.jdbc.driver.OracleDriver$1.run(OracleDriver.java:1427)
    at java.security.AccessController.doPrivileged(Native Method)
    at oracle.jdbc.driver.OracleDriver.getSystemProperty(OracleDriver.java:1423)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:596)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at edu.stanford.smi.protege.storage.database.RobustConnection.setupConnection(Unknown Source)
    at edu.stanford.smi.protege.storage.database.RobustConnection.<init>(Unknown Source)
    at edu.stanford.smi.protege.storage.database.DatabaseFrameDb.<init>(Unknown Source)
    at edu.stanford.smi.protege.storage.database.DatabaseKnowledgeBaseFactory.addFrameStore(Unknown Source)
    at edu.stanford.smi.protege.storage.database.DatabaseKnowledgeBaseFactory.loadKnowledgeBase(Unknown Source)
    at edu.stanford.smi.protege.storage.database.DatabaseKnowledgeBaseFactory.loadKnowledgeBase(Unknown Source)
    at edu.stanford.smi.protege.model.Project.loadDomainKB(Unknown Source)
    at edu.stanford.smi.protege.model.Project.createDomainKnowledgeBase(Unknown Source)
    at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)
    at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)
    at edu.stanford.smi.protege.model.Project.loadProjectFromURI(Unknown Source)
    at edu.stanford.smi.protege.ui.ProjectManager.loadProjectFromURI(Unknown Source)
    at edu.stanford.smi.protege.ui.ProjectManager.loadProject(Unknown Source)
    at edu.stanford.smi.protege.Application.init(Unknown Source)
    at edu.stanford.smi.protege.Application.realmain(Unknown Source)
    at edu.stanford.smi.protege.Application$3.run(Unknown Source)
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Question by:HappyEngineer
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by:objects
ID: 16891203
yes, it needs signing. Or changing the security policy file on each box that needs to use it.
Signing would be the easiest though.
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Mayank S earned 500 total points
ID: 16892696
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by:Mayank S
Mayank S earned 500 total points
ID: 16892702
>> Signing would be the easiest though

Yes, security policy file is not a good approach because it will give permissions to all applets which is not advisable ;-) as its a security-threat.
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Expert Comment

by:objects
ID: 17055500
> Yes, security policy file is not a good approach because it will give permissions to all applets which is not advisable ;-) as its a security-threat.

thats actually incorrect :)
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by:Mayank S
ID: 17079292
Why?
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