We are successfully configured the SAP-JCO in java, we tested using
the normal java programmming using main method. if i configures same
thing in google app engine we are getting the following exception
please any body help us to solve this problem Initializing AppEngine
server Aug 17, 2010 9:44:50 AM
com.google.apphosting.utils.jetty.JettyLogger info INFO: Logging to
JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Aug 17, 2010 9:44:50 AM
com.google.apphosting.utils.config.AppEngineWebXmlReader
readAppEngineWebXml INFO: Successfully processed C:\project-smartstore
\gwt-jco\war\WEB-INF/appengine-web.xml Aug 17, 2010 9:44:51 AM
com.google.apphosting.utils.config.AbstractConfigXmlReader
readConfigXml INFO: Successfully processed C:\project-smartstore\gwt-
jco\war\WEB-INF/web.xml The server is running at http://localhost:8888/
Aug 17, 2010 9:45:28 AM
com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE:
[1282038328164000] javax.servlet.ServletContext log: Exception while
dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract boolean com.atp.jco.client.GreetingService.get()'
threw an unexpected exception: java.lang.ExceptionInInitializerError:
Error getting the version of the native layer:
java.lang.ExceptionInInitializerError 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:511)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1166) at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
51) 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
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:349) 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: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) Caused by:
java.lang.ExceptionInInitializerError: Error getting the version of
the native layer: java.lang.ExceptionInInitializerError at
com.sap.conn.jco.rt.MiddlewareJavaRfc.(MiddlewareJavaRfc.java:212) at
com.sap.conn.jco.rt.DefaultJCoRuntime.initialize(DefaultJCoRuntime.java:
73) at com.sap.conn.jco.rt.JCoRuntimeFactory.(JCoRuntimeFactory.java:
23) at com.sap.conn.jco.rt.RuntimeEnvironment.(RuntimeEnvironment.java:
40) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method) at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:
39) at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:
27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at
com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:
112) at
com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:
132) at com.sap.conn.jco.ext.Environment.getInstance(Environment.java:
121) at
com.sap.conn.jco.ext.Environment.registerDestinationDataProvider(Environment.java:
216) at com.atp.jco.manager.proj.Connection.(Connection.java:26) at
com.atp.jco.manager.proj.ConnectionTester.getConnectionStatus(ConnectionTester.java:
18) at
com.atp.jco.server.GreetingServiceImpl.get(GreetingServiceImpl.java:
18) 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:585) 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

 Thanks

 Chandrashaker Gattu

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