【发布时间】：2012-06-02 15:57:14
【问题描述】：
我正在尝试将 Jena 库、Pellet 和一些 RPG 2d 库 Slick 全部集成到一个小程序中。 所以基本上当我在浏览器中运行小程序时，我得到这个文件权限错误（我使用的 jars 都是签名的）：
Exception in thread "Thread-15" java.lang.ExceptionInInitializerError
at org.mindswap.pellet.ABox.<init>(ABox.java:208)
at org.mindswap.pellet.KnowledgeBase.clear(KnowledgeBase.java:540)
at org.mindswap.pellet.KnowledgeBase.<init>(KnowledgeBase.java:418)
at org.mindswap.pellet.jena.PelletInfGraph.<init>(PelletInfGraph.java:99)
at org.mindswap.pellet.jena.PelletReasoner.bind(PelletReasoner.java:95)
at org.mindswap.pellet.jena.PelletReasoner.bind(PelletReasoner.java:53)
at com.hp.hpl.jena.ontology.impl.OntModelImpl.generateGraph(OntModelImpl.java:2744)
at com.hp.hpl.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:139)
at com.hp.hpl.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:128)
at com.hp.hpl.jena.rdf.model.ModelFactory.createOntologyModel(ModelFactory.java:410)
at RPGGame.GameSelectionScreen.init(GameSelectionScreen.java:170)
at RPGGame.RPGGame.initStatesList(RPGGame.java:39)
at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:164)
at org.newdawn.slick.AppletGameContainer$Container.initApplet(AppletGameContainer.java:272)
at org.newdawn.slick.AppletGameContainer$ContainerPanel.initGL(AppletGameContainer.java:229)
at org.newdawn.slick.AppletGameContainer$ContainerPanel.start(AppletGameContainer.java:216)
at org.newdawn.slick.AppletGameContainer$1.run(AppletGameContainer.java:92)
Caused by: java.security.AccessControlException: access denied ("java.util.PropertyPermission" "pellet.configuration" "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 org.mindswap.pellet.PelletOptions.<clinit>(PelletOptions.java:805)
提前致谢， 约阿那
【问题讨论】：
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根据堆栈跟踪，这是一个权限问题。也许编辑您的问题以立即明确。