- I'm building a simple Servlet Application on Google App Engine.
- I have a Servlet and I'm able to successfully reach its doGet method.
- However, when I try to establish a MongoClient on my localhost, I get the
exception:
access denied ("java.lang.RuntimePermission" "modifyThreadGroup")
- The Error is triggered by following line:
client = new MongoClient(hostName);
- Can someone explain to me what am I doing wrong?
java.security.AccessControlException: access denied
("java.lang.RuntimePermission" "modifyThreadGroup")
at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:457)
at
java.security.AccessController.checkPermission(AccessController.java:884)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at
com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:429)
at
com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkAccess(DevAppServerFactory.java:454)
at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:315)
at java.lang.Thread.init(Thread.java:391)
at java.lang.Thread.init(Thread.java:349)
at java.lang.Thread.<init>(Thread.java:548)
at com.mongodb.ServerMonitor.<init>(ServerMonitor.java:66)
at com.mongodb.DefaultServer.<init>(DefaultServer.java:45)
at
com.mongodb.DefaultClusterableServerFactory.create(DefaultClusterableServerFactory.java:44)
at com.mongodb.BaseCluster.createServer(BaseCluster.java:235)
at com.mongodb.SingleServerCluster.<init>(SingleServerCluster.java:45)
at com.mongodb.Clusters.create(Clusters.java:32)
at com.mongodb.DBTCPConnector.start(DBTCPConnector.java:72)
at com.mongodb.Mongo.<init>(Mongo.java:346)
at com.mongodb.MongoClient.<init>(MongoClient.java:167)
at com.mongodb.MongoClient.<init>(MongoClient.java:152)
at com.mongodb.MongoClient.<init>(MongoClient.java:127)
at com.mongodb.MongoClient.<init>(MongoClient.java:92)
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