Google App Engine with Hibernate java.security.AccessControlException: access denied (“java.lang.RuntimePermission” “modifyThreadGroup”)

Question

So from other topics here and the google dev site I put together the following - Enabled Google App Engine - Checked SQL Cloud - Setup my developer instance to point to MySQL - added mysql-connector-java-5.1.0-bin.jar to \\eclipse\\plugins\\com.google.appengine.eclipse.sdkbundle_1.8.9\\appengine-java-sdk-1.8.9\\lib\\impl folder

This created the following VM Args for Googles rdbms

-Drdbms.url=jdbc:mysql://localhost:3306/rent1?user=APP_WEB_RENT1 
-Drdbms.driver=com.mysql.jdbc.Driver 
-Drdbms.server=local -Drdbms.password="" 
-Drdbms.user="APP_WEB_RENT1" 
-Drdbms.database="rent1" 
-javaagent:C:\Tools\eclipse\plugins\com.google.appengine.eclipse.sdkbundle_1.8.9\appengine-java-sdk-1.8.9\lib\agent\appengine-agent.jar 
-Ddatastore.default_high_rep_job_policy_unapplied_job_pct=50 
-Xmx512m 
-XX:-UseSplitVerifier

So in the hibernate.cfg.xml I used the RDBMS drivers

<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.google.appengine.api.rdbms.AppEngineDriver</property>

        <!-- Connect to rent1 -->
<property name="hibernate.connection.url">jdbc:google:rdbms://localhost:3306/rent1</property>
<property name="hibernate.connection.username">APP_WEB_RENT1</property>
<property name="hibernate.connection.password"></property>

So the Google app engine driver should take this now and load the MySQL driver based on my Development Instance I setup. By what I read on Google and other sites this should work. But blows up with the following error,

Answers here did not fix the issue

java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "modifyThreadGroup") at java.security.AccessControlContext.checkPermission(AccessControlContext.java:366) at java.security.AccessController.checkPermission(AccessController.java:560) at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:431) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkAccess(DevAppServerFactory.java:456) at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:315) at java.lang.Thread.init(Thread.java:376) at java.lang.Thread.(Thread.java:652) at java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:572) at java.util.concurrent.ThreadPoolExecutor$Worker.(ThreadPoolExecutor.java:610) at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:924) at java.util.concurre nt.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1590) at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:333) at java.util.concurrent.ScheduledThreadPoolExecutor.scheduleWithFixedDelay(ScheduledThreadPoolExecutor.java:594) at java.util.concurrent.Executors$DelegatedScheduledExecutorService.scheduleWithFixedDelay(Executors.java:698) at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:110) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:89) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:206) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:178) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:89) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:206) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:178) at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928) at com.rent1.utils.HibernateUtil.getSessionFactory(HibernateUtil.java:29) at com.rent1.utils.HibernateUtil.(HibernateUtil.java:14) at com.rent1.utils.HibernateUtil.getInstance(HibernateUtil.java:19) at com.rent1.Rent1Servlet.doGet(Rent1Servlet.java:28) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) a t javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:123) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.goo gle.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty. servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:97) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:487) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404 ) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Answer 1

Add this to your web.xml :

<context-param>
  <param-name>com.sun.faces.enableThreading</param-name>
  <param-value>false</param-value>
</context-param>