500!

Das ist ein Fehler.

Es tauchte ein Fehler im Server auf, der verhinderte, dass die Anfrage nach "/content/search/complex.xed" erfüllt werden konnte.

Stack trace :
java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:209)
	at java.base/java.util.KeyValueHolder.<init>(KeyValueHolder.java:61)
	at java.base/java.util.Map.entry(Map.java:1709)
	at org.mycore.frontend.MCRFrontendUtil.setAsCurrent(MCRFrontendUtil.java:240)
	at org.mycore.frontend.MCRFrontendUtil.configureSession(MCRFrontendUtil.java:176)
	at org.mycore.frontend.servlets.MCRServlet.configureSession(MCRServlet.java:423)
	at org.mycore.frontend.servlets.MCRServlet.processThinkPhase(MCRServlet.java:434)
	at org.mycore.frontend.servlets.MCRServlet.doGetPost(MCRServlet.java:321)
	at org.mycore.frontend.servlets.MCRServlet.doGet(MCRServlet.java:156)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.mycore.frontend.filter.MCRWebAppBaseFilter.doFilter(MCRWebAppBaseFilter.java:41)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.mycore.frontend.filter.MCRRequestAuthenticationFilter.doFilter(MCRRequestAuthenticationFilter.java:57)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.mycore.frontend.filter.MCRRequestDebugFilter.doFilter(MCRRequestDebugFilter.java:75)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
	at org.apache.catalina.valves.rewrite.RewriteValve.invoke(RewriteValve.java:545)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:840)

Mehr wissen wir auch nicht.