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brainchutney

Member

Registered: 2016-03-22

Getting this error with Jasper Reports: protocol = http host = null

Im getting the following error after clicking on Preview for a Jasper Report

Error: An error occurred during report execution.
The report could not be executed: protocol = http host = null
To get help please contact an administrator.

Plain Excel seems to be working fine. Any help would be appreciated ! Thanks.

Attaching the detailed trace.

Details
net.datenwerke.rs.core.service.reportmanager.exceptions.ReportExecutorException: The report could not be executed: protocol = http host = null at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:218) at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:119) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet.exeucteReport(ReportExportServlet.java:557) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet.doExportReport(ReportExportServlet.java:438) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet.exportReport(ReportExportServlet.java:368) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet.exportReportViaSession(ReportExportServlet.java:361) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet.doGet(ReportExportServlet.java:171) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593.CGLIB$doGet$0() at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593$$FastClassByGuice$$ee1c1fb.invoke() at com.google.inject.internal.cglib.proxy.$MethodProxy.invokeSuper(MethodProxy.java:228) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at com.google.inject.persist.jpa.JpaLocalTxnInterceptor.invoke(JpaLocalTxnInterceptor.java:66) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:52) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593.doGet() at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593.CGLIB$service$17() at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593$$FastClassByGuice$$ee1c1fb.invoke() at com.google.inject.internal.cglib.proxy.$MethodProxy.invokeSuper(MethodProxy.java:228) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:52) at net.datenwerke.rs.core.server.reportexport.ReportExportServlet$$EnhancerByGuice$$411bc593.service() at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263) at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178) at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91) at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62) at com.google.inject.persist.PersistFilter.doFilter(PersistFilter.java:89) at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163) at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:168) at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:168) at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118) at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113) 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:200) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660) 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:798) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) 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: java.lang.IllegalArgumentException: protocol = http host = null at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:177) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:990) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498) at java.net.URL.openStream(URL.java:1068) at net.sf.jasperreports.engine.util.JRLoader.getInputStream(JRLoader.java:339) at net.sf.jasperreports.repo.DefaultRepositoryService.getInputStream(DefaultRepositoryService.java:99) at net.sf.jasperreports.repo.InputStreamPersistenceService.load(InputStreamPersistenceService.java:45) at net.sf.jasperreports.repo.DefaultRepositoryService.getResource(DefaultRepositoryService.java:149) at net.sf.jasperreports.repo.RepositoryUtil.findInputStream(RepositoryUtil.java:190) at net.sf.jasperreports.repo.RepositoryUtil.getBytesFromLocation(RepositoryUtil.java:206) at net.sf.jasperreports.renderers.util.RendererUtil.getNonLazyRenderable(RendererUtil.java:163) at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:538) at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:482) at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:381) at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:500) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillTitle(JRVerticalFiller.java:311) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:247) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:115) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:582) at net.sf.jasperreports.engine.fill.BaseReportFiller.fill(BaseReportFiller.java:396) at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:90) at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:456) at net.datenwerke.rs.base.service.reportengines.jasper.JasperReportEngine.executeReport(JasperReportEngine.java:311) at net.datenwerke.rs.base.service.reportengines.jasper.JasperReportEngine.doExecute(JasperReportEngine.java:120) at net.datenwerke.rs.core.service.reportmanager.engine.ReportEngine.execute(ReportEngine.java:150) at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:186) ... 58 more

eduardo

Administrator

Registered: 2016-11-01

Website

Re: Getting this error with Jasper Reports: protocol = http host = null

Hi brainchutney,

are you sure all the links in your jasper report are correct? Here you can read the following:

https://stackoverflow.com/questions/256 … l/28519936

"I encountered this same exception when the URL started with http:/ instead of http://. e.g. http:/www.example.com"

"Mostly this error occur due to incorrect url. Make sure the Url that you are hitting is correct.As wsams mentioned try to check the // in your url if it is correct or not. Correct pattern is http://localhost:8080"

Regards,
Eduardo