Make sure your JDBC jar and any config files are on your GWT project classpath. Perhaps the jar is provided in the Tomcat server only?
/dmc On Mon, Jun 20, 2011 at 8:29 AM, saurabh saurabh <[email protected]>wrote: > Hi all, > I have an application using RequestFactory. Its a small > application for the purpose of practice. Here is the problem that when > I run the application ( in eclipse with Google App Engine ) it says > Could not initialize class 'com.mysql.jdbc.ConnectionImpl'. However on > compiling and deploying over Tomcat 7.0 container it runs fine and run > as expected. > > Now this kind of behavior is a bit uncomfortable for development. Any > Idea how it can be resolved within Dev mode. > > The Exception stack trace is as following : > > > com.google.web.bindery.requestfactory.server.ReportableException: > Server Error: Could not initialize class com.mysql.jdbc.ConnectionImpl > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.report(ServiceLayerDecorator.java: > 238) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.invoke(ReflectiveServiceLayer.java: > 191) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.invoke(ServiceLayerDecorator.java: > 110) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.invoke(ServiceLayerDecorator.java: > 110) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.isLive(ReflectiveServiceLayer.java: > 202) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.isLive(ServiceLayerDecorator.java: > 115) > at > > com.google.web.bindery.requestfactory.server.LocatorServiceLayer.doIsLive(LocatorServiceLayer.java: > 198) > at > > com.google.web.bindery.requestfactory.server.LocatorServiceLayer.isLive(LocatorServiceLayer.java: > 90) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.isLive(ServiceLayerDecorator.java: > 115) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.createReturnOperations(SimpleRequestProcessor.java: > 268) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java: > 225) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java: > 125) > at > > com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java: > 118) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > 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.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java: > 35) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: > 58) > 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: > 122) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java: > 94) > 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.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java: > 70) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:351) > 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.NoClassDefFoundError: Could not initialize class > com.mysql.jdbc.ConnectionImpl > at > com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java: > 282) > at java.sql.DriverManager.getConnection(DriverManager.java:582) > at java.sql.DriverManager.getConnection(DriverManager.java:185) > at > com.google.mydynatable.server.PizzaDAO.getConnection(PizzaDAO.java: > 42) > at com.google.mydynatable.server.PizzaDAO.findByID(PizzaDAO.java:79) > at com.google.mydynatable.server.domain.Pizza.findPizza(Pizza.java: > 31) > 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.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java: > 100) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.invoke(ReflectiveServiceLayer.java: > 180) > ... 42 more > Driver loadedcom.mysql.jdbc.Driver@10eb816 > Driver loadedcom.mysql.jdbc.Driver@50c6dd > Driver loadedcom.mysql.jdbc.Driver@4f18f6 > com.google.web.bindery.requestfactory.server.ReportableException: > Server Error: Could not initialize class com.mysql.jdbc.ConnectionImpl > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.report(ServiceLayerDecorator.java: > 238) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.invoke(ReflectiveServiceLayer.java: > 191) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.invoke(ServiceLayerDecorator.java: > 110) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.invoke(ServiceLayerDecorator.java: > 110) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.isLive(ReflectiveServiceLayer.java: > 202) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.isLive(ServiceLayerDecorator.java: > 115) > at > > com.google.web.bindery.requestfactory.server.LocatorServiceLayer.doIsLive(LocatorServiceLayer.java: > 198) > at > > com.google.web.bindery.requestfactory.server.LocatorServiceLayer.isLive(LocatorServiceLayer.java: > 90) > at > > com.google.web.bindery.requestfactory.server.ServiceLayerDecorator.isLive(ServiceLayerDecorator.java: > 115) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.createReturnOperations(SimpleRequestProcessor.java: > 268) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java: > 225) > at > > com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java: > 125) > at > > com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java: > 118) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > 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.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java: > 35) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: > 58) > 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: > 122) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java: > 94) > 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.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java: > 70) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:351) > 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.NoClassDefFoundError: Could not initialize class > com.mysql.jdbc.ConnectionImpl > at > com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java: > 282) > at java.sql.DriverManager.getConnection(DriverManager.java:582) > at java.sql.DriverManager.getConnection(DriverManager.java:185) > at > com.google.mydynatable.server.PizzaDAO.getConnection(PizzaDAO.java: > 42) > at com.google.mydynatable.server.PizzaDAO.findByID(PizzaDAO.java:79) > at com.google.mydynatable.server.domain.Pizza.findPizza(Pizza.java: > 31) > 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.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java: > 100) > at > > com.google.web.bindery.requestfactory.server.ReflectiveServiceLayer.invoke(ReflectiveServiceLayer.java: > 180) > ... 42 more > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- David Chandler Developer Programs Engineer, Google Web Toolkit w: http://code.google.com/ b: http://googlewebtoolkit.blogspot.com/ t: @googledevtools -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
