I had the same problem. All I had to do was to manually put jersey-json jar
library into the the plugins folder along with the plugin I had developed.
In maven that library has this signarure (You might need to play with the
version though).
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.9</version>
</dependency>
On Wednesday, March 25, 2015 at 9:56:37 AM UTC+10, Constantin Mitocaru
wrote:
>
>
> I have not found a solid solution on stackoverflow nor here yet.
> I developed a Server plugin and installed it on neo4j server.
> The rest works fine if it returns primitives.
> However when it gets to this method:
>
> @GET
> @Path("/dum")
> @Produces({MediaType.APPLICATION_JSON})
> public RestResponse<Pair<String,String>> dumDum() {
> return RestResponse.success("Ok", Pair.of("dum", "dum"));
> }
>
>
>
>
> throws this error
>
>
> SEVERE: A message body writer for Java class com.mycomp.rest.RestResponse,
> and Java type
> com.mycomp.rest.RestResponse<com.mycomp.commons.Pair<java.lang.String,
> java.lang.String>>, and MIME media type application/json was not found
> Mar 24, 2015 11:19:41 AM com.sun.jersey.spi.container.ContainerResponse
> write
> SEVERE: The registered message body writers compatible with the MIME media
> type are:
> */* ->
> com.sun.jersey.core.impl.provider.entity.FormProvider
> com.sun.jersey.core.impl.provider.entity.StringProvider
> com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
> com.sun.jersey.core.impl.provider.entity.FileProvider
> com.sun.jersey.core.impl.provider.entity.InputStreamProvider
> com.sun.jersey.core.impl.provider.entity.DataSourceProvider
> com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
> com.sun.jersey.core.impl.provider.entity.ReaderProvider
> com.sun.jersey.core.impl.provider.entity.DocumentProvider
> com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider
> com.sun.jersey.core.impl.provider.entity.SourceProvider$SourceWriter
> com.sun.jersey.server.impl.template.ViewableMessageBodyWriter
> com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
> com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
>
> Mar 24, 2015 11:19:41 AM com.sun.jersey.spi.container.ContainerResponse
> logException
> SEVERE: Mapped exception to response: 500 (Internal Server Error)
> javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException:
> A message body writer for Java class com.mycomp.rest.RestResponse, and Java
> type com.mycomp.rest.RestResponse<com.mycomp.commons.Pair<java.lang.String,
> java.lang.String>>, and MIME media type application/json was not found
> at
> com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:285)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1437)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:698)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:505)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:211)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1096)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:432)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:175)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1030)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:136)
> at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at org.eclipse.jetty.server.Server.handle(Server.java:445)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:268)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:229)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:358)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:601)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:532)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: com.sun.jersey.api.MessageException: A message body writer for
> Java class com.mycomp.rest.RestResponse, and Java type
> com.mycomp.rest.RestResponse<com.mycomp.commons.Pair<java.lang.String,
> java.lang.String>>, and MIME media type application/json was not found
> ... 25 more
>
>
>
> One solution i found was to use genson. It works BUT it breaks the
> functionality of the regular neo4j endpoint db/data/. So the genson
> solution ain't gonna fly.
> Under a normal web app I would add this in web.xml
>
> <init-param>
> <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
> <param-value>true</param-value>
> </init-param>
>
>
>
> But here I do NOT have a web.xml to alter.
>
> Please let me know my options
>
>
>
>
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