Description:
Mainly used for image output, generating image by setting the ID of the temporary layer set (tempLayers).
Temporary layers:
FreeMarker template error (DEBUG mode; use RETHROW in production!):
The following has evaluated to null or missing:
==> resource.content [in template "tempLayers.ftl" at line 19, column 42]
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Tip: It's the step after the last dot that caused this error, not those before it.
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Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: #list resource.content as layer [in template "tempLayers.ftl" at line 19, column 35]
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Java stack trace (for programmers):
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freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134)
at freemarker.core.Expression.assertNonNull(Expression.java:233)
at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:103)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:93)
at freemarker.core.Environment.visit(Environment.java:330)
at freemarker.core.Environment.visit(Environment.java:336)
at freemarker.core.Environment.process(Environment.java:309)
at freemarker.template.Template.process(Template.java:384)
at org.restlet.ext.freemarker.TemplateRepresentation.write(TemplateRepresentation.java:325)
at org.restlet.representation.CharacterRepresentation.write(CharacterRepresentation.java:76)
at org.restlet.engine.adapter.ServerCall.writeResponseBody(ServerCall.java:519)
at org.restlet.engine.adapter.ServerCall.sendResponse(ServerCall.java:463)
at org.restlet.ext.servlet.internal.ServletCall.sendResponse(ServletCall.java:430)
at org.restlet.engine.adapter.ServerAdapter.commit(ServerAdapter.java:196)
at org.restlet.ext.servlet.ServletAdapter.service(ServletAdapter.java:207)
at com.supermap.services.rest.RestServlet$AdapterProxy.service(SourceFile:261)
at com.supermap.services.rest.RestServlet.service(SourceFile:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at com.supermap.server.host.webapp.handlers.WebAppRequestDispatcher.forward(SourceFile:63)
at com.supermap.server.host.webapp.handlers.ServiceDispatcherHandler$ResponseCacheFailedHandler.handle(SourceFile:832)
at com.supermap.server.host.webapp.handlers.ServiceDispatcherHandler.handle(SourceFile:418)
at com.supermap.server.host.webapp.handlers.AbstractHandler.process(SourceFile:199)
at com.supermap.server.host.webapp.handlers.AbstractHandler.a(SourceFile:225)
at com.supermap.server.host.webapp.handlers.AbstractHandler.invokeLowerPriorityHandlers(SourceFile:214)
at com.supermap.server.host.webapp.handlers.AbstractHandler.process(SourceFile:201)
at com.supermap.server.host.webapp.handlers.BasicHandler.process(SourceFile:337)
at com.supermap.server.host.webapp.ApplicationFilter.doFilter(SourceFile:254)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:364)
at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:170)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:126)
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.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.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:609)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:810)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1623)
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)
