what JDK do you use ? JDBC4 driver should be used only starting with JDK 1.6, acording to the postgresql site : JDK 1.6 - JDBC4. Support for JDBC4 methods is limited. The driver builds, but the majority of new methods are stubbed out. maybe you will consider in using the JDBC3 version
in my apps, i put the jar in the war\WEB-INF\lib folder, and the using eclipse I add it to the build path but one more thing ... i just noticed ... why do you have the appengine in a application that will use an "normal" SGBD ? if i recall well, using appengine you won't be able to connect to the database any way hope any of this helps cheers On Feb 9, 11:24 am, vinod M <[email protected]> wrote: > HI, > > Can anyone help me in solving the issue faced while developing the > application using Postgres DB with SmartGWT-2.0 and GWT 2.0, failing > to establish the connection. > > Configuration Details > > Eclipse 3.4 (Ganymede) > Gwt plugin > Appengine 1.3 > GWT 2.0 > SmartGwt 2.0 > Postgres Sql DB > > I initially tried setting external library path for the > 'postgresql-8.4-701.jdbc4.jar' and tried running the server got this > error attached below. > > Code: > > Initializing AppEngine server The server is running athttp://localhost:8888/ > java.lang.ClassNotFoundException: org.postgresql.Driver at > java.net.URLClassLoader$1.run(URLClassLoader.java:200) at > java.security.AccessController.doPrivileged(Native Method) at > java.net.URLClassLoader.findClass(URLClassLoader.java:188) > > I tried putting the same jar file inside the war/WEB-INF/lib and > restarted the server, and error log reads below > > Code: > > Initializing AppEngine server The server is running athttp://localhost:8888/ > 9 Feb, 2010 7:00:26 AM > com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: > [1265698826728000] javax.servlet.ServletContext log: Exception while > dispatching incoming RPC call > com.google.gwt.user.server.rpc.UnexpectedException: Service method > 'public abstract java.lang.String > com.zo.zotweb.client.GreetingService.greetServer(java.lang.String)' > threw an unexpected exception: java.lang.NoClassDefFoundError: > java.net.Socket is a restricted class. Please see the Google App > Engine developer's guide for more details. at > com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java: > 378) at > com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: > 581) at > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: > 188) at > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java: > 224) at > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java: > 62) 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.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: > 51) at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1084) 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: > 70) at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 139) at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:352) 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:211) 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) Caused by: > java.lang.NoClassDefFoundError: java.net.Socket is a restricted class. > Please see the Google App Engine developer's guide for more details. > at > com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java: > 51) at org.postgresql.core.PGStream.<init>(PGStream.java:62) at > org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java: > 76) at > org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java: > 66) at > org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java: > 125) at > org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java: > 30) at > org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(AbstractJdbc3gConnection.java: > 22) at > org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(AbstractJdbc4Connection.java: > 30) at > org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.java:24) > at org.postgresql.Driver.makeConnection(Driver.java:393) at > org.postgresql.Driver.connect(Driver.java:267) at > java.sql.DriverManager.getConnection(DriverManager.java:582) at > java.sql.DriverManager.getConnection(DriverManager.java:185) at > com.zo.zotweb.server.DbConnection.connectDB(DbConnection.java:12) at > com.zo.zotweb.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java: > 19) 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.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: > 562) ... 30 more > > please help me find the solution for this -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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