Rest server skeleton overlay app is getting all 404 from the FHIR server

[ppazos]

I have built hapi-fhirstarters-rest-server-skeleton and deployed the war on Tomcat 11.

The overlay app is working on http://localhost:8080/fhir/

First I see there are no resources on the menu, while in the ExampleRestfulServet class there are two resource providers configured on the server.

Then if I go to Server Home Actions and click on Conformance, in the Tomcat logs I see:

14:45:01.114 WARN  o.s.web.servlet.PageNotFound No mapping for GET /fhir/metadata
14:45:01.114 WARN  o.s.web.servlet.PageNotFound No endpoint GET /fhir/metadata.
14:45:01.117 WARN  ca.uhn.fhir.to.BaseController Failed to load conformance statement, error was: ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException: HTTP 404 

On the web I see the 404 alert.

It seems the server is not being initialized correctly (ExampleRestulfServlet.initialize() not being invoked?)

I'm blocked here, not sure what to do.

[ppazos]

Full exception

14:53:58.462 WARN  ca.uhn.fhir.to.BaseController Failed to invoke server
ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException: HTTP 404 
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	at ca.uhn.fhir.rest.server.exceptions.BaseServerResponseException.newInstance(BaseServerResponseException.java:317)
	at ca.uhn.fhir.rest.client.impl.BaseClient.invokeClient(BaseClient.java:415)
	at ca.uhn.fhir.rest.client.impl.GenericClient$BaseClientExecutable.invoke(GenericClient.java:585)
	at ca.uhn.fhir.rest.client.impl.GenericClient$FetchConformanceInternal.execute(GenericClient.java:896)
	at ca.uhn.fhir.to.Controller.actionConformance(Controller.java:117)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:261)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:189)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:917)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:829)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:619)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:716)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:130)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:109)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:663)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:387)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1746)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1148)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
	at java.base/java.lang.Thread.run(Thread.java:840)

[ppazos]

I did another try and the initialize() method is being called (added a print)

Then I tried to deploy the restful-server-example.war as the ROOT.war and it worked.

It seems the overlay app (https://github.com/hapifhir/hapi-fhir/tree/master/hapi-fhir-testpage-overlay) might have some configuration that doesn't allow to deploy it in a different context than root.

Does anybody knows where can I change that so it allows to reploy on any context/path?

[ppazos]

Aha!

It seems the hepi-fhir-testpage-overlay has a hardcoded servlet mapping to the root in the web.xml:

	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>