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getting Error "java.lang.ExceptionInInitializerError" while trying to access mysql local intance in App engine project

I am implementing RESTful web services for our app engine project,In my project we have to access external Mysql instance from google app engine app ,while searching for solution of this problem (searching on SO)i came to know that i have implement web services.
I followed tutorial given on this link to create RESTful web services using jersey and try to communicate with local MySql instance.
Below image displays file stracture of my app engine application
and lib folder which contains all .jar files
My app engine application(in eclipse file >> new >> others >> google >>web application project) is running fine,running project locally(development mode) it takes me to log in page(tutorial takes username and password from html form).
when i press submit button it shows me page not found , when i looked at the stacktrace in the console
com.sun.jersey.api.container.MappableContainerException: java.lang.ExceptionInInitializerError
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:74)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:163)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:654)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:612)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:603)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:309)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:425)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:590)
at 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:127)
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$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$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:98)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:491)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.ExceptionInInitializerError
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at dao.DbConnection.getConnection(DbConnection.java:16)
at model.SecurityManager.getAllUsersList(SecurityManager.java:18)
at webService.LoginService.getAllUsersList(LoginService.java:36)
at webService.LoginService.login(LoginService.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:156)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
... 47 more
Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "modifyThreadGroup")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:372)
at java.security.AccessController.checkPermission(AccessController.java:559)
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:389)
at java.lang.Thread.init(Thread.java:349)
at java.lang.Thread.<init>(Thread.java:444)
at java.util.TimerThread.<init>(Timer.java:499)
at java.util.Timer.<init>(Timer.java:101)
at java.util.Timer.<init>(Timer.java:146)
at com.mysql.jdbc.Connection.<clinit>(Connection.java:1089)
by looking at the stack trace it seem that there is problem while making connection to local MySql instance
can some one please helps me to understand ,
1>> what is the reason behind occurrence of this type of error?
2>> how to solve this error?
thanks in advance!!!!!

This mostly happens when you are accessing a class which is not allowed by GAE. This particular error can make you pull your hair all around :)
Always check with GAE before using a new library. Links are given below.
Jersey,
Version 1.5 and 1.1.5 are compatible, but need tweaks.
1.1.5 is semi compatible
Older versions are not compatible. You seem to be using 1.0.3.
Whenever you get ExceptionInInitializerError caused by AccessControlException, the top two reasons are:
You are using an unsupported library. Check with GAE Will It Play With Java.
You are using an blacklisted class. Check with GAE White List.
So, please change your jersey version and make required code changes. This error will go away.

Hadoop Jobtracker web homepage not accessible

I just installed jobtracker and task trackers but as soon as I start any of my tasktrackers
Job trackers homepage gives following error:
java.lang.NoSuchMethodError: sun.misc.FloatingDecimal.digitsRoundedUp()Z
at java.text.DigitList.set(DigitList.java:292)
at java.text.DecimalFormat.format(DecimalFormat.java:599)
at java.text.DecimalFormat.format(DecimalFormat.java:522)
at java.text.NumberFormat.format(NumberFormat.java:271)
at org.apache.hadoop.mapred.jobtracker_jsp.generateSummaryTable(jobtracker_jsp.java:26)
at org.apache.hadoop.mapred.jobtracker_jsp._jspService(jobtracker_jsp.java:146)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
at org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:109)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1069)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
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:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Whereas in jobtracker::50030/machines.jsp?type=active all tasktrackers are showed in running state.
Hadoop Version: Hadoop 2.0.0-cdh4.6.0 and java version: "1.7.0_55"
My jobtracker/tasktracker everything is working fine but I am unable to access jobtracker's web homepage. Similarly in hbase I am getting this exception on every command run, but hbase is working fine.
hbase(main):003:0> list
TABLE
t1
Java::JavaLang::NoSuchMethodError: sun.misc.FloatingDecimal.digitsRoundedUp()Z
Any suggestions please.

Fixed this issue actually while installing java I downloaded floatingdecimal.jar manually from maven repository which was causing issue. After deleting jar not only jobtracker issue is resolved but also hbase exception is removed.

can't test the application using maven (java.lang.ClassCastException)

I just converted an eclipse project to a maven project, for running the compiled code base I am using maven with jetty to run the compiled code. But, I am facing a problem when I am trying to test the application. It works fine if I am not using maven.
[WARN] RealmVerifier - -RP discovery / realm validation disabled;
2013-07-23 14:41:44.584::WARN: Nested in org.apache.jasper.JasperException: java.lang.ClassCastException: com.sun.crypto.provider.KeyGeneratorCore$HmacSHA256KG cannot be cast to javax.crypto.KeyGeneratorSpi:
java.lang.ClassCastException: com.sun.crypto.provider.KeyGeneratorCore$HmacSHA256KG cannot be cast to javax.crypto.KeyGeneratorSpi
at javax.crypto.KeyGenerator.getInstance(KeyGenerator.java:126)
at org.openid4java.association.Association.isHmacSha256Supported(Association.java:188)
at org.openid4java.consumer.ConsumerManager.(ConsumerManager.java:159)
at org.openid4java.consumer.ConsumerManager.(ConsumerManager.java:142)
at org.apache.jsp.consumer_005fredirect_jsp._jspService(org.apache.jsp.consumer_005fredirect_jsp:76)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:93)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:470)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:364)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
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:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

it seems like that when you are using maven jetty plugin it is loading the different version of class that was not expected. try to change the build path manually and remove the jar from that class is coming and then try to relaunch.
This way you might get the issue (Fingers Crossed :) ).
Thanks
Saurav

java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)

I have a problem in using of my own Database server with Google web application.
Am using eclips (java EE IDE), installed all google plugins init, and develop a sample google web aplication , deployed it into web.Its working correctly.
Now i want to use my own Database in my app.(MYSQL installed in localhost).
Here am using Hibernate to connect with database. All required jar file are placed in lib directory which is in WEB-INF folder.
When i run my application it gives an error like ..
com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: Error for /Home
java.lang.ExceptionInInitializerError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:57)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:397)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2006)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1289)
at base.Trackerlogin.service(Trackerlogin.java:56)
at 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$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectRequest(DevAppServerServersFilter.java:369)
at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectServerRequest(DevAppServerServersFilter.java:352)
at com.google.appengine.tools.development.DevAppServerServersFilter.doFilter(DevAppServerServersFilter.java:115)
at org.mortbay.jetty.servlet.ServletHandler$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:94)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:421)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)
at java.security.AccessController.checkPermission(AccessController.java:546)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:289)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkAccess(DevAppServerFactory.java:314)
at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:288)
at java.lang.Thread.init(Thread.java:332)
at java.lang.Thread.<init>(Thread.java:419)
at com.mysql.jdbc.AbandonedConnectionCleanupThread.<init>(AbandonedConnectionCleanupThread.java:33)
at com.mysql.jdbc.NonRegisteringDriver.<clinit>(NonRegisteringDriver.java:88)
... 46 more
Apr 26, 2013 10:37:22 AM com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: Nested in java.lang.ExceptionInInitializerError:
java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)
at java.security.AccessController.checkPermission(AccessController.java:546)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:289)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkAccess(DevAppServerFactory.java:314)
at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:288)
at java.lang.Thread.init(Thread.java:332)
at java.lang.Thread.<init>(Thread.java:419)
at com.mysql.jdbc.AbandonedConnectionCleanupThread.<init>(AbandonedConnectionCleanupThread.java:33)
at com.mysql.jdbc.NonRegisteringDriver.<clinit>(NonRegisteringDriver.java:88)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:57)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:397)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2006)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1289)
at base.Trackerlogin.service(Trackerlogin.java:56)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$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.google.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.DevAppServerServersFilter.doDirectRequest(DevAppServerServersFilter.java:369)
at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectServerRequest(DevAppServerServersFilter.java:352)
at com.google.appengine.tools.development.DevAppServerServersFilter.doFilter(DevAppServerServersFilter.java:115)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:94)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:421)
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$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Apr 26, 2013 10:37:22 AM org.hibernate.connection.DriverManagerConnectionProvider close
INFO: cleaning up connection pool: null
Please give any Idea to achieve this one....

Do you use Hibernate 4.3.1 Final ?
Hibernate's DriverManagerConnectionProvider tries to create new Threads, which is not allowed on GAE. I also had this issue.
Checking out Google's example on GitHub told me that using Hibernate 4.2.0.Final works fine. I tried to run the same example with Hibernate 4.3.1 and got the same Exception. But with 4.2 it's running just as expected.
I'm gonna downgrade Hibernate in my App and see..

This week i tried to use Hibernate 4.3.6.Final in a Google App Engine / Google Cloud Sql project and ran into the above described problem (java.security.AccessControlException). In earlier GAE/GCS projects i used Hibernate 4.3.0.Beta3 without any problems.
As Gaël Oberson already stated above, the problem is the new implementation of the default connection pool DriverManagerConnectionProviderImpl in Hibernate. This connection pool tries to spawn new Threads with Executors.newSingleThreadScheduledExecutor;
executorService = Executors.newSingleThreadScheduledExecutor();
executorService.scheduleWithFixedDelay(
new Runnable() {...}
This is not allowed on Google App Engine;
A Java application can create a new thread, but there are some
restrictions on how to do it. These threads can't "outlive" the
request that creates them.
The actual problem is the Hibernate configuration which doesn't allow the use of no connection pool. According to Google this connection pool is even not necessary on GAE/GCS;
How to best manage your database connections depends on your use case.
For example, if the time to create a new database connection is
greater than checking and reusing an existing connection, then we
recommend you use connection pooling. Conversely, if the time to
create a new connection is about the same as testing if an existing
connection is alive and reusing it, then we recommend that you create
a new connection to service each HTTP request, and reuse it for the
duration of the request. In particular, the latter case may apply when
you connect from Google App Engine to Google Cloud SQL.
summarized; we don't need connection pooling on GAE/GCS, but Hibernate doesn't provide a non connection pooling option out of the box.
Because of a tight schedule i went for a quick solution; i wrote my own version of DriverManagerConnectionProviderImpl. This version doesn't keep an administration of connections but just opens and closes connection on a call. There's some room for improvement because i should reuse the connection for the duration of the request ... Another solution would be the use of approved GAE Threads...
In my opinion Hibernate should provide the no pooling option for GAE/GCS developers. I already posted this topic at the Hibernate Community.

Follow this:
Appengine has their own version of MySQL called Cloud SQL. See the docs on how to use your own MySQL instance during development. Note that you can not use your own MySQL in production.
See the docs on how make Cloud SQL work with Hibernate.

I got the same exception while trying to use Class.forName("com.mysql.jdbc.Driver"); and got it solved by doing the following:
used com.google.appengine.api.rdbms.AppEngineDriver instead of com.mysql.jdbc.Driver
changed the jdk version from jdk1.7.0_25 to jdk1.7.0_21

Unable to configure EntityManagerFactory

I am new to JPA & hibernate. In my web-app i have changed my JDBC codes to JPA. While running the web-app i am getting a BIG list of errors. But from my knowledge in JPA and Hibernate, I think the two errors below represent most of my problem.
Unable to configure EntityManagerFactory
16047 [31149935#qtp-23671010-1] ERROR org.hibernate.util.XMLHelper - Error parsing XML: XML InputStream(2) cvc-complex-type.3.1: Value '2.0' of attribute 'version' of element 'entity-mappings' is not valid with respect to the corresponding attribute use. Attribute 'version' has a fixed value of '1.0'.
I have searched a lot for these errors on the web. But I can't find one solution. I have included all the required JARs and added persistence.xml to the class path. I am not able to find the reason.
Here my full list of console errors:
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Documents%20and%20Settings/tamilvendhank/Local%20Settings/Temp/Jetty_127_0_0_ 1_8080_ExpMgmtWeb.war__ExpMgmtWeb__w96xvk_3923622842201679764/webapp/WEB-INF/lib/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Documents%20and%20Settings/tamilvendhank/Local%20Settings/Temp/Jetty_127_0_0_1_8080_ExpMgmtWeb.war__ExpMgmtWeb__w96xvk_3923622842201679764/webapp/WEB-INF/lib/slf4j-simple-1.5.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
15360 [31149935#qtp-23671010-1] INFO org.hibernate.cfg.annotations.Version - Hibernate Annotations 3.4.0.CR1
15375 [31149935#qtp-23671010-1] INFO org.hibernate.cfg.Environment - Hibernate 3.3.0.CR1
15375 [31149935#qtp-23671010-1] INFO org.hibernate.cfg.Environment - hibernate.properties not found
15375 [31149935#qtp-23671010-1] INFO org.hibernate.cfg.Environment - Bytecode provider name : cglib
15375 [31149935#qtp-23671010-1] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
15469 [31149935#qtp-23671010-1] INFO org.hibernate.annotations.common.Version - Hibernate Commons Annotations 3.1.0.CR1
15469 [31149935#qtp-23671010-1] INFO org.hibernate.ejb.Version - Hibernate EntityManager 3.4.0.CR1
16047 [31149935#qtp-23671010-1] ERROR org.hibernate.util.XMLHelper - Error parsing XML: XML InputStream(2) cvc-complex-type.3.1: Value '2.0' of attribute 'version' of element 'entity-mappings' is not valid with respect to the corresponding attribute use. Attribute 'version' has a fixed value of '1.0'.
2010-09-19 11:23:40.265:WARN::Error for /ExpMgmtWeb/dwr/call/plaincall/ExpenseDetailsManagement.getexpenseList.dwr
java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.directwebremoting.create.NewCreator.getInstance(NewCreator.java:66)
at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:344)
at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:279)
at org.directwebremoting.servlet.PlainCallHandler.handle(PlainCallHandler.java:52)
at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:101)
at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:144)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
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 org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
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$RequestHandler.content(HttpConnection.java:943)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
2010-09-19 11:23:40.265:WARN::Nested in java.lang.ExceptionInInitializerError:
javax.persistence.PersistenceException: [PersistenceUnit: ExpensePersistentUnit] Unable to configure EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:125)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.pricar.JPAInteg.ExpenseDetailsManagement.<clinit>(ExpenseDetailsManagement.java:21)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.directwebremoting.create.NewCreator.getInstance(NewCreator.java:66)
at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:344)
at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:279)
at org.directwebremoting.servlet.PlainCallHandler.handle(PlainCallHandler.java:52)
at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:101)
at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:144)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
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 org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
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$RequestHandler.content(HttpConnection.java:943)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
<?xml version="1.0" encoding="UTF-8"?>
<persistence>
<persistence-unit name="ExpensePersistentUnit">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.pricar.JPAInteg.Role</class>
<class>com.pricar.JPAInteg.User</class>
<class>com.pricar.JPAInteg.Userdetail</class>
<class>com.pricar.JPAInteg.Category</class>
<class>com.pricar.JPAInteg.Expens</class>
<class>com.pricar.JPAInteg.Leavetable</class>
<class>com.pricar.JPAInteg.Permissiontoken</class>
<class>com.pricar.JPAInteg.Roletokenassociation</class>
<class>com.pricar.JPAInteg.UserPK</class>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost/officemgmt"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"></property>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.password" value="1234"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.show_sql" value="true"/>
</properties>
</persistence-unit>
</persistence>
Update:
javax.persistence.PersistenceException: [PersistenceUnit: ExpensePersistentUnit] Unable to configure EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:371)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:55)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.pricar.JPAInteg.ExpenseDetailsManagement.<clinit>(ExpenseDetailsManagement.java:21)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
Update 2:
I have some basic questions:
How many xml files involved in JPA+Hibernate combination, if JPA annotations were used?
i am having just persistence.xml. But totally 3(dwr.xml & web.xml)
Is hibernate.cfg.xml needed, if i use JPA annotaions. Because, i didnt added it till now.
Shall you give me the list of basic JAR file names, in case of using JPA 2.0 & Hibernate!!! Because, i am having more than 15 files.

You are using a JPA 1.0 implementation, you need to provide a JPA 1.0 compliant
orm.xml (note the version attribute amongst other things):
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings
xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
version="1.0">
...
</entity-mappings>
Yours probably looks like:
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings
xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_2_0.xsd"
version="2.0">
...
</entity-mappings>
Which is correct... if you are using a JPA 2.0 provider.
But to be honest, I don't know why you are providing an orm.xml, you usually don't need an XML mapping file when using annotations.
References
JPA 1.0 Specifciation
Section "10.2 XML Schema"
JPA 2.0 Specifciation
Section "12.3 XML Schema"
Thanks for your reply and sorry for the orm.xml. My intense is to show the location of persistence.xml. I am not using XML mapping. That orm.xml is auto generated. Shall I remove that file?
I would try to remove the orm.xml indeed, entity-mappings is the root element of the orm.xml, that's what the error is about.
What do you mean in "if you are using a JPA 2.0 provider"? Provider means, Hibernate??
JPA is just an API. To use JPA, you need an implementation of this API and such implementations are called persistence providers (EcliseLink, Hibernate, OpenJPA). In your case, you are using Hibernate EntityManager 3.4.0.GA which is a JPA 1.0 implementation.
What I have to do to change to JPA 2.0? by adding javax.persistence_2.0.0.jar or by change the hibernate which is using JPA 2.0??
Both, you'd have to use Hibernate EntityManager 3.5+ (and its dependencies, and this includes the javax.persistence_2.0.0.jar).

16047 [31149935#qtp-23671010-1] ERROR
org.hibernate.util.XMLHelper - Error
parsing XML: XML InputStream(2)
cvc-complex-type.3.1: Value '2.0' of
attribute 'version' of element
'entity-mappings' is not valid with
respect to the corresponding attribute
use. Attribute 'version' has a fixed
value of '1.0'.
Looks like this is error in your xml with some kind of attribute version's value.