Diffa Diffa

This unhelpful stacktrace is occurs in combination with a GET call to the zoom function from the UI:

08:53:56.227 ["http-bio-8080"-exec-8] ERROR ApplicationSpecificExceptionMapper:32 - Unhandled application exception
java.lang.NullPointerException: null
        at net.lshift.diffa.agent.rest.exceptions.ApplicationSpecificExceptionMapper.toResponse(ApplicationSpecificExceptionMapper.scala:32) [ApplicationSpecificExcepti
onMapper.class:na]
        at com.sun.jersey.spi.container.ContainerResponse.mapException(ContainerResponse.java:452) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.spi.container.ContainerResponse.mapMappableContainerException(ContainerResponse.java:400) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1345) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1335) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537) [jersey-server-1.7.jar:1.7]
        at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699) [jersey-server-1.7.jar:1.7]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) [servlet-api.jar:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304) [catalina.jar:7.0.11]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.11]
        at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) [sitemesh-2.4.2.jar:na]
        at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) [sitemesh-2.4.2.jar:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.11]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.11]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240) [catalina.jar:7.0.11]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164) [catalina.jar:7.0.11]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498) [catalina.jar:7.0.11]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) [catalina.jar:7.0.11]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) [catalina.jar:7.0.11]
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) [catalina.jar:7.0.11]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) [catalina.jar:7.0.11]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394) [catalina.jar:7.0.11]
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243) [tomcat-coyote.jar:7.0.11]
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) [tomcat-coyote.jar:7.0.11]
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166) [tomcat-coyote.jar:7.0.11]
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302) [tomcat-coyote.jar:7.0.11]        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_16]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_16]        at java.lang.Thread.run(Thread.java:619) [na:1.6.0_16]