Can you try to use the latest 2.5.12 version? There was some issue
related to the JasperReports fixed with this release.

2017-07-14 2:10 GMT+02:00 Jon Eskin <eski...@gmail.com>:
> I tried to make a sample project using code from a tutorial I found for the 
> JasperReports plugin 
> (https://struts.apache.org/docs/jasperreports-tutorial.html 
> <https://struts.apache.org/docs/jasperreports-tutorial.html>).
>
> I’m seeing a NullPointerException in my logs when I try to run the report 
> (see below). It’s complaining about not closing a db connection even though 
> no db connection is made. I uploaded a small project demonstrating the issue: 
> https://github.com/jpe90/struts2jasper 
> <https://github.com/jpe90/struts2jasper>
>
> Am I doing something wrong or is this a bug?
>
> Error:
>
> 2017-07-13 19:59:56,616 WARN  [http-nio-8080-exec-6] 
> jasperreports.JasperReportsResult (JasperReportsResult.java:392) - Could not 
> close db connection properly
> java.lang.NullPointerException: null
>         at 
> org.apache.struts2.views.jasperreports.JasperReportsResult.doExecute(JasperReportsResult.java:390)
>  [struts2-jasperreports-plugin-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.result.StrutsResultSupport.execute(StrutsResultSupport.java:208)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:373)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:277)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:253)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:177)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:260)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:73)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:139)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:133)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:133)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:192)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:69)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:115)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:88)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:246)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:99)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:139)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:155)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:174)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:120)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:171)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:195)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:193)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:54)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:564) 
> [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:143)
>  [struts2-core-2.5.10.1.jar:2.5.10.1]
>         at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
> [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) 
> [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
>  [catalina.jar:8.5.16]
>         at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) 
> [catalina.jar:8.5.16]
>         at 
> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) 
> [tomcat-coyote.jar:8.5.16]
>         at 
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
>  [tomcat-coyote.jar:8.5.16]
>         at 
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
>  [tomcat-coyote.jar:8.5.16]
>         at 
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
>  [tomcat-coyote.jar:8.5.16]
>         at 
> org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
>  [tomcat-coyote.jar:8.5.16]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  [?:1.8.0_101]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  [?:1.8.0_101]
>         at 
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
>  [tomcat-util.jar:8.5.16]
>         at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]
>
>
>



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