Servlet Error: QueryGen

An unexpected servlet error has occurred.

Message:



'exact' element requires at least one term

Stack Trace:



org.cdlib.xtf.textEngine.QueryGenException: 'exact' element requires at least one term at org.cdlib.xtf.textEngine.QueryRequestParser.error(QueryRequestParser.java:185) at org.cdlib.xtf.textEngine.QueryRequestParser.makeProxQuery(QueryRequestParser.java:1421) at org.cdlib.xtf.textEngine.QueryRequestParser.parseQuery2(QueryRequestParser.java:555) at org.cdlib.xtf.textEngine.QueryRequestParser.parseQuery(QueryRequestParser.java:475) at org.cdlib.xtf.textEngine.QueryRequestParser.parseQuery2(QueryRequestParser.java:594) at org.cdlib.xtf.textEngine.QueryRequestParser.parseQuery(QueryRequestParser.java:475) at org.cdlib.xtf.textEngine.QueryRequestParser.parseOutput(QueryRequestParser.java:263) at org.cdlib.xtf.textEngine.QueryRequestParser.parseOutputTop(QueryRequestParser.java:218) at org.cdlib.xtf.textEngine.QueryRequestParser.parseRequest(QueryRequestParser.java:132) at org.cdlib.xtf.textEngine.QueryRequestParser.parseRequest(QueryRequestParser.java:165) at org.cdlib.xtf.crossQuery.CrossQuery.runQueryParser(CrossQuery.java:395) at org.cdlib.xtf.crossQuery.CrossQuery.apply(CrossQuery.java:200) at org.cdlib.xtf.crossQuery.CrossQuery.doGet(CrossQuery.java:153) at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) at org.cdlib.xtf.servletBase.TextServlet.service(TextServlet.java:449) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:829)