Java method "static com.jenzabar.jxntm.web.util.TemplateWebUtils.getCourseAttributes(String)" threw an exception; see cause exception in the Java stack trace.

----
FTL stack trace ("~" means nesting-related):
	- Failed at: #assign courseDetail = TemplateWebUti...  [in template "common.ftlh" in macro "head" at line 4, column 1]
	- Reached through: @common.head  [in template "shop/index.html" at line 6, column 1]
----

Java stack trace (for programmers):
----
freemarker.core._TemplateModelException: [... Exception message was already printed; see it above ...]
	at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:292)
	at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:255)
	at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:78)
	at freemarker.core.MethodCall._eval(MethodCall.java:62)
	at freemarker.core.Expression.eval(Expression.java:101)
	at freemarker.core.Assignment.accept(Assignment.java:134)
	at freemarker.core.Environment.visit(Environment.java:380)
	at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:886)
	at freemarker.core.Environment.invokeMacro(Environment.java:822)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
	at freemarker.core.Environment.visit(Environment.java:344)
	at freemarker.core.Environment.visit(Environment.java:350)
	at freemarker.core.Environment.process(Environment.java:323)
	at freemarker.ext.servlet.FreemarkerServlet.processEnvironment(FreemarkerServlet.java:927)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:880)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:765)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.jenzabar.jxntm.web.util.SessionCookieFilter.doFilter(SessionCookieFilter.java:90)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.jenzabar.jxntm.web.util.SSOLoginFilter.doFilter(SSOLoginFilter.java:38)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.jenzabar.jxntm.web.util.HSTSFilter.doFilter(HSTSFilter.java:25)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at net.jenzabar.web.servlet.JbossJaasLoginFilter.doFilter(JbossJaasLoginFilter.java:90)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.jenzabar.jxntm.web.util.StudentHoldFilter.doFilter(StudentHoldFilter.java:36)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
	at com.jenzabar.jxntm.web.util.valves.CookieAttributeValve.invoke(CookieAttributeValve.java:111)
	at com.jenzabar.jxntm.web.util.valves.CookieAttributeValve.invoke(CookieAttributeValve.java:111)
	at com.jenzabar.jxntm.web.util.valves.OptionsValve.invoke(OptionsValve.java:17)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:659)
	at java.util.ArrayList.get(ArrayList.java:435)
	at com.jenzabar.jxntm.web.util.TemplateWebUtils.lookupCourse(TemplateWebUtils.java:29)
	at com.jenzabar.jxntm.web.util.TemplateWebUtils.getCourseAttributes(TemplateWebUtils.java:66)
	at sun.reflect.GeneratedMethodAccessor253.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1634)
	at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:73)
	... 54 more