ERROR: The serialization policy file 'xxx.gwt.rpc' was not found; did you forget to include it in this deployment?

Hello,

I am reorganizing some maven GWT projects, i. e. moving common code out of app projects into libraries and so on. Until now, I have moved only classes from the shared directory. I did not touch the server-side code yet.

However, I am actually getting this error when I select "Debug As -> GWT Development mode with Jetty" in eclipse:

2017-12-27 10:13:04.813:INFO:/:qtp1139566718-80: EventServlet: ERROR: The serialization policy file '/apl/639E49884D8207D25E3A7CFF4491F8C9.gwt.rpc' was not found; did you forget to include it in this deployment?

(see the complete output below)

There are several servlets defined in the web.xml, but only for this one (EventServlet) the error is shown. I have not touched the servlets and the web.xml. I have also cleaned and rebuild the project.

How can I solve this?

Thanks

Magnus

Running CodeServer with parameters: [-noprecompile, -port, 9876, -sourceLevel, 1.8, -bindAddress, 127.0.0.1, -launcherDir, /home/warker/dvl/prj/msm/msm-app-bcs/target/msm-app-bcs-1.0-SNAPSHOT, -logLevel, INFO, -style, OBFUSCATED, msm.app.bcs.Application]

Super Dev Mode starting up

   workDir: /tmp/gwt-codeserver-4155472912936236704.tmp

2017-12-27 10:12:47.520:INFO::main: Logging initialized @12837ms

   Loading Java files in msm.app.bcs.Application.

   Ignored 1 unit with compilation errors in first pass.

Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.

   Module setup completed in 16947 ms

2017-12-27 10:12:57.711:INFO:oejs.Server:main: jetty-9.2.14.v20151106

2017-12-27 10:12:57.853:INFO:oejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@4b8c6dbc{/,null,AVAILABLE}

2017-12-27 10:12:57.987:INFO:oejs.ServerConnector:main: Started ServerConnector@49b6177a{HTTP/1.1}{127.0.0.1:9876}

2017-12-27 10:12:57.987:INFO:oejs.Server:main: Started @23305ms

The code server is ready at http://127.0.0.1:9876/

Code server started in 17.90 s ms

2017-12-27 10:12:58.446:INFO:oejs.Server:main: jetty-9.2.14.v20151106

Starting Jetty on port 8888

   [WARN] ServletContainerInitializers: detected. Class hierarchy: empty

2017-12-27 10:13:01.961:INFO:oejsh.ContextHandler:main: Started c.g.g.d.s.j.WebAppContextWithReload@2a1076b5{/,file:/home/warker/dvl/prj/msm/msm-app-bcs/target/msm-app-bcs-1.0-SNAPSHOT/,AVAILABLE}{/home/warker/dvl/prj/msm/msm-app-bcs/target/msm-app-bcs-1.0-SNAPSHOT}

2017-12-27 10:13:01.965:INFO:oejs.ServerConnector:main: Started ServerConnector@9443150{HTTP/1.1}{127.0.0.1:8888}

2017-12-27 10:13:01.968:INFO:oejs.Server:main: Started @27285ms

UpdateService: startup

2017-12-27 10:13:04.813:INFO:/:qtp1139566718-80: EventServlet: ERROR: The serialization policy file '/apl/639E49884D8207D25E3A7CFF4491F8C9.gwt.rpc' was not found; did you forget to include it in this deployment?

2017-12-27 10:13:04.814:INFO:/:qtp1139566718-80: EventServlet: WARNING: Failed to get the SerializationPolicy '639E49884D8207D25E3A7CFF4491F8C9' for module 'http://127.0.0.1:8888/apl/'; a legacy, 1.3.3 compatible, serialization policy will be used.  You may experience SerializationExceptions as a result.

[WARN] Server class 'junit.framework.AssertionFailedError' could not be found in the web app, but was found on the system classpath

   [WARN] Adding classpath entry 'file:/home/warker/.m2/repository/junit/junit/4.11/junit-4.11.jar' to the web app classpath for this session

DBS CONSTRUCTION

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