if a gsh template throws an exception, still display the screen

e.g. for folders:

2021-03-17 06:21:02,773: [ajp-nio-0.0.0.0-8191-exec-9] ERROR GrouperUiRestServlet.doGet(369) - - Problem calling reflection from URL: edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Stem.viewStem

java.lang.RuntimeException: Problem converting JSP to string: /WEB-INF/grouperUi2/stem/viewStem.jsp,
Problem calling method viewStem on edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Stem
at edu.internet2.middleware.grouper.ui.util.GrouperUiUtils.convertJspToString(GrouperUiUtils.java:1815)
at edu.internet2.middleware.grouper.grouperUi.beans.json.GuiScreenAction.newInnerHtmlFromJsp(GuiScreenAction.java:559)
at edu.internet2.middleware.grouper.grouperUi.serviceLogic.UiV2Stem.viewStem(UiV2Stem.java:939)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at edu.internet2.middleware.grouper.util.GrouperUtil.invokeMethod(GrouperUtil.java:4929)
at edu.internet2.middleware.grouper.util.GrouperUtil.callMethod(GrouperUtil.java:4880)
at edu.internet2.middleware.grouper.j2ee.GrouperUiRestServlet.doGet(GrouperUiRestServlet.java:336)
at edu.internet2.middleware.grouper.j2ee.GrouperUiRestServlet.doPost(GrouperUiRestServlet.java:203)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.owasp.csrfguard.CsrfGuardFilter.doFilter(CsrfGuardFilter.java:88)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at edu.internet2.middleware.grouper.ui.GrouperUiFilter.doFilter(GrouperUiFilter.java:1173)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:524)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1626)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.jasper.JasperException: javax.el.ELException: Error reading [templatesToShowInMoreActions] on type [edu.internet2.middleware.grouper.grouperUi.beans.ui.StemContainer]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:516)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:713)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:583)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:519)
at edu.internet2.middleware.grouper.ui.util.GrouperUiUtils.convertJspToString(GrouperUiUtils.java:1813)
... 44 more
Caused by: javax.el.ELException: Error reading [templatesToShowInMoreActions] on type [edu.internet2.middleware.grouper.grouperUi.beans.ui.StemContainer]
at javax.el.BeanELResolver.getValue(BeanELResolver.java:98)
at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:113)
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:190)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:944)
at org.apache.jsp.WEB_002dINF.grouperUi2.stem.viewStem_jsp._jspx_meth_c_005fforEach_005f2(viewStem_jsp.java:1988)
at org.apache.jsp.WEB_002dINF.grouperUi2.stem.viewStem_jsp._jspx_meth_c_005fif_005f15(viewStem_jsp.java:1956)
at org.apache.jsp.WEB_002dINF.grouperUi2.stem.viewStem_jsp._jspService(viewStem_jsp.java:466)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)
... 53 more
Caused by: java.lang.RuntimeException: Cant find property: grouperGshTemplate.cmbTest.input.0.dropdownCsvValue in properties file: grouper.properties, it is required
at edu.internet2.middleware.grouperClient.config.ConfigPropertiesCascadeBase.propertyValueStringHelper(ConfigPropertiesCascadeBase.java:481)
at edu.internet2.middleware.grouperClient.config.ConfigPropertiesCascadeBase.propertyValueString(ConfigPropertiesCascadeBase.java:431)
at edu.internet2.middleware.grouperClient.config.ConfigPropertiesCascadeBase.propertyValueStringRequired(ConfigPropertiesCascadeBase.java:336)
at edu.internet2.middleware.grouper.app.gsh.template.GshTemplateConfig.populateConfiguration(GshTemplateConfig.java:413)
at edu.internet2.middleware.grouper.grouperUi.beans.ui.StemContainer.getTemplatesToShowInMoreActions(StemContainer.java:777)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:94)
... 63 more

[root@i2midev6 container]#