Hi All, I have integrated drools rule engine 5.0 with GWT WebProject. When I try to call the rule engine from GWT Applicaiton Engine, I get following exception java.security.AccessControlException: access denied (java.io.FilePermission C:\Documents and Settings\vamshidharc\drools.packagebuilder.conf read)     at java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)     at java.security.AccessController.checkPermission(AccessController.java:546)     at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)     at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:139)     at java.lang.SecurityManager.checkRead(SecurityManager.java:871)     at java.io.File.exists(File.java:731)     at org.drools.util.ChainedProperties.loadProperties(ChainedProperties.java:243)     at org.drools.util.ChainedProperties.<init>(ChainedProperties.java:69)     at org.drools.util.ChainedProperties.<init>(ChainedProperties.java:41)     at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:167)     at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:153)     at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:242)     at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:142)     at org.drools.builder.impl.KnowledgeBuilderProviderImpl.newKnowledgeBuilder(KnowledgeBuilderProviderImpl.java:29)     at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:29)     at com.cura.test.server.RuleEngineInvoker.readKnowledgeBase(RuleEngineInvoker.java:72)     at com.cura.test.server.RuleEngineInvoker.invokeRuleEngine(RuleEngineInvoker.java:51)     at com.cura.test.server.GreetingServiceImpl.getDept(GreetingServiceImpl.java:25)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)     at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:166)     at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)     at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)     at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)     at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:121)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)     at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)     at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)     at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)     at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)     at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)     at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54)     at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)     at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:313)     at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)     at org.mortbay.jetty.Server.handle(Server.java:313)     at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)     at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844)     at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)     at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)     at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)     at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396)     at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) does anyone hav idea? tnx in advance bye vamshi