What steps will reproduce the problem?
Execute a SPARQL SELECT against the SPARQL endpoint with an Accept header
specifying "application/json" or "application/sparql-results+json".
What is the expected output? What do you see instead?
A valid SPARQL result set serialized to JSON. An exception as follows:
The server encountered an internal error that prevented it from fulfilling this
request.</u></p><p><b>exception</b> <pre>java.lang.IllegalStateException:
getOutputStream() has already been called for this response
org.apache.catalina.connector.Response.getWriter(Response.java:678)
org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:213)
edu.kit.aifb.cumulus.webapp.ErrorServlet.service(ErrorServlet.java:58)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
edu.kit.aifb.cumulus.webapp.AbstractHttpServlet.forwardTo(AbstractHttpServlet.java:204)
edu.kit.aifb.cumulus.webapp.AbstractHttpServlet.sendError(AbstractHttpServlet.java:164)
edu.kit.aifb.cumulus.webapp.SPARQLServlet.service(SPARQLServlet.java:235)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
What version of the product are you using? On what operating system?
Cumulus 1.0.1 on Centos release 6.5 (Final)
Please provide any additional information below.
Example using curl:
curl http://cumulusrdf/sparql --data "query=SELECT..." -H "Accept
application/json"
Original issue reported on code.google.com by abar...@i3.com on 4 Nov 2014 at 8:46
Original issue reported on code.google.com by
abar...@i3.comon 4 Nov 2014 at 8:46