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Description: Rest returning null object when request parameter is provided
Submitted on May 14, 2015 at 10:50 AM

Section 1 (Text)

<object><results<object><error><message>Unknown XStream exception; nested exception is java.lang.NullPointerException</message><code>org.springframework.oxm.xstream.XStreamMarshaller:558</code><detail>org.springframework.oxm.UncategorizedMappingException: Unknown XStream exception; nested exception is java.lang.NullPointerException&#xd;
    at org.springframework.oxm.xstream.XStreamMarshaller.convertXStreamException(XStreamMarshaller.java:558)&#xd;
    at org.springframework.oxm.xstream.XStreamMarshaller.marshal(XStreamMarshaller.java:458)&#xd;
    at org.springframework.oxm.xstream.XStreamMarshaller.marshalWriter(XStreamMarshaller.java:445)&#xd;
    at org.springframework.oxm.xstream.XStreamMarshaller.marshalOutputStream(XStreamMarshaller.java:427)&#xd;
    at org.springframework.oxm.support.AbstractMarshaller.marshalStreamResult(AbstractMarshaller.java:267)&#xd;
    at org.springframework.oxm.support.AbstractMarshaller.marshal(AbstractMarshaller.java:102)&#xd;
    at org.springframework.http.converter.xml.MarshallingHttpMessageConverter.writeToResult(MarshallingHttpMessageConverter.java:131)&#xd;
    at org.springframework.http.converter.xml.AbstractXmlHttpMessageConverter.writeInternal(AbstractXmlHttpMessageConverter.java:66)&#xd;
    at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:181)&#xd;
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.writeWithMessageConverters(AnnotationMethodHandlerAdapter.java:975)&#xd;
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.handleResponseBody(AnnotationMethodHandlerAdapter.java:933)&#xd;
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.getModelAndView(AnnotationMethodHandlerAdapter.java:882)&#xd;
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:428)&#xd;
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)&#xd;
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)&#xd;
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)&#xd;
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)&#xd;
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)&#xd;
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)&#xd;
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.module.web.filter.ForcePasswordChangeFilter.doFilter(ForcePasswordChangeFilter.java:65)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:76)&#xd;
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:83)&#xd;
    at org.openmrs.module.logmanager.web.filter.RequestProviderFilter.doFilterInternal(RequestProviderFilter.java:36)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:74)&#xd;
    at org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:59)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:74)&#xd;
    at org.openmrs.module.webservices.rest.web.filter.AuthorizationFilter.doFilter(AuthorizationFilter.java:108)&#xd;
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:74)&#xd;
    at org.springframework.web.filter.ShallowEtagHeaderFilter.doFilterInternal(ShallowEtagHeaderFilter.java:58)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:74)&#xd;
    at org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:58)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:111)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:109)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:109)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:109)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)&#xd;
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&#xd;
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&#xd;
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)&#xd;
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)&#xd;
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)&#xd;
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)&#xd;
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)&#xd;
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)&#xd;
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)&#xd;
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)&#xd;
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)&#xd;
    at java.lang.Thread.run(Thread.java:745)&#xd;
Caused by: java.lang.NullPointerException&#xd;
    at org.openmrs.module.webservices.rest.util.SimpleObjectConverter.getSelfLink(SimpleObjectConverter.java:76)&#xd;
    at org.openmrs.module.webservices.rest.util.SimpleObjectConverter.marshal(SimpleObjectConverter.java:49)&#xd;
    at org.openmrs.module.webservices.rest.util.SimpleObjectConverter.marshal(SimpleObjectConverter.java:41)&#xd;
    at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68)&#xd;
    at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78)&#xd;
    at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63)&#xd;
    at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98)&#xd;
    at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38)&#xd;
    at com.thoughtworks.xstream.XStream.marshal(XStream.java:837)&#xd;
    at com.thoughtworks.xstream.XStream.marshal(XStream.java:826)&#xd;
    at org.springframework.oxm.xstream.XStreamMarshaller.marshal(XStreamMarshaller.java:455)&#xd;
    ... 70 more&#xd;
</detail></error></object>