NoClassDefFoundError JasperFillManager inside a web application

[markusin77]

Hello,
I am trying to run the jasperreports libraries inside the servlet container (Jetty). The steps I implemented is first compiling the reports and second filling the reports with data from a JDBC connection.

The first step is elaborated without exceptions, where calling JasperCompileManager, but in the second step a got a NoClassDefFoundError: net/sf/jasperreports/engine/JasperFillManager.
I ensured the jar file is in the classpath (I am using jetty:run maven plugin).

my code here:

 public void createReportFile(PostgresConnector destConnector, Integer inspectionId) {    try {      File jrxmlFile = new File(Thread.currentThread().getContextClassLoader().getResource("jasper/jrxml/main.jrxml").toURI());      File jasperFile = new File(Thread.currentThread().getContextClassLoader().getResource("jasper/jrxml/main.jasper").toURI());            // Compiling jasper report      logger.info("Compiling report file " + jasperFile.getAbsolutePath());      JasperCompileManager.compileReportToFile(jrxmlFile.getAbsolutePath(), jasperFile.getAbsolutePath());      // Create arguments      Map<String,Object> params = new HashMap<String,Object>();      params.put("id_inspection", inspectionId);      params.put("userLocale", "it_IT");      params.put("use_signature", Boolean.FALSE);      params.put("headquarter",  "Bolzano, il");      // Filling data into jasper file      logger.info("Filling data into report file " + jasperFile.getAbsolutePath());      JasperPrint jprint = (JasperPrint) JasperFillManager.fillReport(jasperFile.getAbsolutePath(), params, destConnector.getConnection());      // Export pdf file      String reportPath = config.getProperty("server.reportDirectory");      Inspection inspection = model.getInspection(inspectionId);      String pdfFileName = reportPath + inspection.getReportFilename();      logger.info("Creating pdf report file " + pdfFileName);      JasperExportManager.exportReportToPdfFile(jprint, pdfFileName);           } catch (Exception e) {      logger.warn("Error when generating jasper report", e);     }    }[/code]

and this is the stack trace: 

[WARNING] Error for /inspector/configjava.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JasperFillManager    at com.hydrosafety.inspector.manager.controller.Controller.createReportFile(Controller.java:1329)    at com.hydrosafety.inspector.manager.servlets.ConfigServlet.processGenerateReportRequest(ConfigServlet.java:225)    at com.hydrosafety.inspector.manager.servlets.ConfigServlet.processRequest(ConfigServlet.java:166)    at com.hydrosafety.inspector.manager.servlets.ConfigServlet.doGet(ConfigServlet.java:112)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:835)    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1158)    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1090)    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)    at org.eclipse.jetty.server.Server.handle(Server.java:517)    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)    at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)    at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.ClassNotFoundException: net.sf.jasperreports.engine.JasperFillManager    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)    at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)    at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:487)    at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:428)    ... 30 more[/code]

thanks for any suggestion

Markus

 

[hozawa]

Nope, jasperreports.jar is not being recognized in the classpath - that's why you're getting the error.

That beside, it's better to precompile jrxml to jasper file and use that - it's much faster without the compile.