I've followed the exact instructions http://community.jaspersoft.com/project/web-service-data-source In Jaspersoft Studio I can run my created job and I receive results back, so that's great! However, when I publish that report to our Jaspersoft Reports server (6.2), connect it to the created web datasource and run the report, it fails: How to resolve this? Is it a bug?I receive the same error when running the examples "Number of Pedestrians Injured - ElasticSearch (POST)"or "Top 10 Most Dangerous Streets - Elastic Search (POST)". However the example "Google Map From To Journey" does work. report XML: <?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 6.2.0.final using JasperReports Library version 6.2.0 --><!-- 2016-02-25T14:25:42 --><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="Test" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="fa06d267-761a-4f87-b3b8-dabbd7b6b8ae"><property name="com.jaspersoft.studio.data.defaultdataadapter" value="YesPlan"/><queryString language="WebServiceQuery"><![CDATA[{ "fieldsMap" : { "name" : "data.name", "starttime" : "data.starttime", "endtime" : "data.endtime" }, "getparameters" : { }, "fields" : [ { "name" : "name", "expression" : "data.name" }, { "name" : "starttime", "expression" : "data.starttime" }, { "name" : "endtime", "expression" : "data.endtime" } ], "options" : { "contentType" : "application/json", "rootPath" : "", "baseUrl" : "events/date%3A02-01-2009?api_key=XXXXXXXXXXXXXX" }, "headersMap" : { }, "queryData" : "", "GETParameters" : { }}]]></queryString><field name="name" class="java.lang.String"/><field name="starttime" class="java.lang.String"/><field name="endtime" class="java.lang.String"/><background><band splitType="Stretch"/></background><title><band height="79" splitType="Stretch"/></title><pageHeader><band height="35" splitType="Stretch"/></pageHeader><columnHeader><band height="61" splitType="Stretch"><staticText><reportElement x="0" y="0" width="185" height="30" uuid="d3354440-e33e-4cab-82b6-8aa76243bac7"/><text><![CDATA[name]]></text></staticText><staticText><reportElement x="185" y="0" width="185" height="30" uuid="ad4c35c3-f332-4d70-bbfa-b43706f8977c"/><text><![CDATA[starttime]]></text></staticText><staticText><reportElement x="370" y="0" width="185" height="30" uuid="8d07a3c8-11a3-40a6-bd05-6ed80eefa4ce"/><text><![CDATA[endtime]]></text></staticText></band></columnHeader><detail><band height="125" splitType="Stretch"><textField><reportElement x="0" y="55" width="185" height="30" uuid="3f6b8188-3a55-4024-84bc-7d8986a15520"/><textFieldExpression><![CDATA[$F{name}]]></textFieldExpression></textField><textField><reportElement x="185" y="55" width="185" height="30" uuid="63f5f80a-e547-442c-a7bd-3914980ffe8c"/><textFieldExpression><![CDATA[$F{starttime}]]></textFieldExpression></textField><textField><reportElement x="370" y="55" width="185" height="30" uuid="557f659b-1821-4c90-aada-933e6467f0c7"/><textFieldExpression><![CDATA[$F{endtime}]]></textFieldExpression></textField></band></detail><columnFooter><band height="45" splitType="Stretch"/></columnFooter><pageFooter><band height="54" splitType="Stretch"/></pageFooter><summary><band height="42" splitType="Stretch"/></summary></jasperReport>