Re: Serialization /Incompatible/ classnot found

Can you share the string that the client sent to the server for this? It looks as though either something has been done to modify the stream (preemptively read from it once it hit the client? an extra token was written to it? some other customization?) or perhaps a proxy server replaced some string with a url for some reason? There is no reason that a classname should begin with "http:" in the client code.

On Wednesday, December 6, 2017 at 12:20:48 PM UTC-6, jeslin...@gmail.com wrote:

Hi,

   i am getting the below error after i migrated from gwt 2.6.1 to gwt 2.8.1. 

am trying to pass an "LinkedHashMap<String, Object> " object thats causing the trouble. I am getting this issue only during post request. Linkedhashmap is working perfectly with get request. Any help is highly appreciated. Let me know if you need additional info to help me.

I have all the latest Jars (2.8.1) in my classpath "gwt-user, gwt-servlet " 

 

Dec 06, 2017 11:05:08 AM org.apache.catalina.core.ApplicationContext log

SEVERE: navigationService: An IncompatibleRemoteServiceException was thrown while processing this call.

com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: java.lang.ClassNotFoundException: http:

at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:323)

at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:263)

at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:305)

at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: com.google.gwt.user.client.rpc.SerializationException: java.lang.ClassNotFoundException: http:

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:708)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:612)

at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:119)

at com.google.gwt.user.client.rpc.core.java.util.Arrays$ArrayList_CustomFieldSerializer.instantiate(Arrays.java:57)

at com.google.gwt.user.server.rpc.core.java.util.Arrays$ArrayList_ServerCustomFieldSerializer.instantiate(Arrays.java:66)

at com.google.gwt.user.server.rpc.core.java.util.Arrays$ArrayList_ServerCustomFieldSerializer.instantiateInstance(Arrays.java:106)

at com.google.gwt.user.server.rpc.core.java.util.Arrays$ArrayList_ServerCustomFieldSerializer.instantiateInstance(Arrays.java:39)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.instantiate(ServerSerializationStreamReader.java:1088)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:682)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readObject(ServerSerializationStreamReader.java:592)

at com.google.gwt.user.server.rpc.core.java.util.Map_ServerCustomFieldSerializerBase.deserialize(Map_ServerCustomFieldSerializerBase.java:38)

at com.google.gwt.user.server.rpc.core.java.util.LinkedHashMap_ServerCustomFieldSerializer.deserialize(LinkedHashMap_ServerCustomFieldSerializer.java:41)

at com.google.gwt.user.server.rpc.core.java.util.LinkedHashMap_ServerCustomFieldSerializer.deserializeInstance(LinkedHashMap_ServerCustomFieldSerializer.java:55)

at com.google.gwt.user.server.rpc.core.java.util.LinkedHashMap_ServerCustomFieldSerializer.deserializeInstance(LinkedHashMap_ServerCustomFieldSerializer.java:34)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserializeImpl(ServerSerializationStreamReader.java:884)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:687)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readObject(ServerSerializationStreamReader.java:592)

at com.google.gwt.user.server.rpc.core.java.util.Collection_ServerCustomFieldSerializerBase.deserialize(Collection_ServerCustomFieldSerializerBase.java:38)

at com.google.gwt.user.server.rpc.core.java.util.ArrayList_ServerCustomFieldSerializer.deserialize(ArrayList_ServerCustomFieldSerializer.java:40)

at com.google.gwt.user.server.rpc.core.java.util.ArrayList_ServerCustomFieldSerializer.deserializeInstance(ArrayList_ServerCustomFieldSerializer.java:54)

at com.google.gwt.user.server.rpc.core.java.util.ArrayList_ServerCustomFieldSerializer.deserializeInstance(ArrayList_ServerCustomFieldSerializer.java:33)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserializeImpl(ServerSerializationStreamReader.java:884)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:687)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readObject(ServerSerializationStreamReader.java:592)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader$ValueReader$8.readValue(ServerSerializationStreamReader.java:149)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserializeValue(ServerSerializationStreamReader.java:434)

at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:312)

... 24 more

Caused by: java.lang.ClassNotFoundException: http:

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:348)

at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:634)

... 50 more

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