java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/util/JRLoader

Question

I'm trying to call jasper report from Oracle ADF. I've include below jar files into the class path

apache-ant-1.7.1.jar
groovy-all-2.0.1.jar
itext-2.1.7.js2.jar
jasperreports-6.1.0.jar
jasperreports-fonts-6.1.0.jar
jasperreports-javaflow-6.1.0.jar
jcommon-1.0.15.jar
jfreechart-1.0.12.jar
poi-3.10.1.jar

Below is the code I'm using to call the report

HttpServletResponse response = getResponse();
             ServletOutputStream out = response.getOutputStream();
             response.setHeader("Cache-Control", "max-age=0");
             response.setContentType("application/pdf");
             ServletContext context = getContext();

            InputStream fs = new FileInputStream(new File(context.getRealPath("/reports/usman.jasper")));

             JasperReport template = (JasperReport) JRLoader.loadObject(fs);
             template.setWhenNoDataType(WhenNoDataTypeEnum.ALL_SECTIONS_NO_DETAIL);

        JasperPrint print;
        print = JasperFillManager.fillReport(template, null);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
             JasperExportManager.exportReportToPdfStream(print, baos);
             out.write(baos.toByteArray());
             out.flush();
             out.close();
        FacesContext.getCurrentInstance().responseComplete();

When i run the code i get below error:

Caused by: java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/util/JRLoader
    at Test.b2_action(Test.java:70)
    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 com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181)
    at com.sun.el.parser.AstValue.invoke(AstValue.java:289)
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
    ... 74 more

Please help me resolve this error. am i missing a jar ?

maybe have a look at this: https://stackoverflow.com/questions/34413/why-am-i-getting-a-noclassdeffounderror-in-java. are you sure the class is available at runtime? — Lino, Jul 27 '17 at 07:10
are you using a build tool or something like this? if not have you compiled all the files needed to execute your code? — Lino, Jul 27 '17 at 07:12
jasperreports-6.1.0.jar has that class...there must be some conflict among the jars — Akshay, Jul 27 '17 at 07:14
Basic test press ctrl+shift+T and type the missing classname. you should be able to see the class in some of the above jar, if the Jar is in classpath. If that is there, then I would suggest to rebuild the complete app (refresh dependencies like in Gradle) and retry. If still not working than follow this link http://javareferencegv.blogspot.in/2013/10/debugging-javalangnoclassdeffounderror.html — sakura, Jul 27 '17 at 07:16
@UsmanRiaz Try to remove `jasperreports-javaflow-6.1.0.jar` from cp. You don't need to have both *JR* jars (`jasperreports-javaflow-6.1.0.jar` & `jasperreports-6.1.0.jar`) at cp — Alex K, Jul 27 '17 at 07:31

score 0 · Answer 1 · answered Jul 27 '17 at 07:51

0

Just restarted the JDeveloper and build the project and problem was solved. class files were missing from the class path.

answered Jul 27 '17 at 07:51

Usman Riaz

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java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/util/JRLoader

1 Answers1