Applet Loading Error - Jasper Report
- by Mihir
I encountered very silly error , but any way i can not figure out solution.i am loading java applet which encompass a simple jasper viewer in it. when the applet is loaded it throws following exception.
SEVERE: Servlet.service() for servlet JasperReportServlet threw exception
java.lang.ClassNotFoundException: org.apache.commons.collections.ReferenceMap
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.<init>(DefaultExtensionsRegistry.java:96)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at net.sf.jasperreports.engine.util.ClassUtils.instantiateClass(ClassUtils.java:59)
at net.sf.jasperreports.extensions.ExtensionsEnvironment.createDefaultRegistry(ExtensionsEnvironment.java:80)
at net.sf.jasperreports.extensions.ExtensionsEnvironment.<clinit>(ExtensionsEnvironment.java:68)
at net.sf.jasperreports.engine.util.JRStyledTextParser.<clinit>(JRStyledTextParser.java:76)
at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:182)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:77)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:87)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:57)
at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:142)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:78)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624)
at com.dbhl.app.report.generator.JobUpdateGenerator.getJasperPrintObject(JobUpdateGenerator.java:279)
at com.dbhl.app.report.JasperReportServlet.processJobUpdate(JasperReportServlet.java:153)
at com.dbhl.app.report.JasperReportServlet.getJasperPrintObjectByLedgerType(JasperReportServlet.java:79)
at com.dbhl.app.report.JasperReportServlet.service(JasperReportServlet.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
below is my applet configuration, i am loading applet using standard java deployment toolkit.
<script type="text/javascript"
src="<%=basePath%>js/deployJava.js">
</script>
<script>
var user = '<%=request.getParameter("user")%>';
var attributes = {
code : 'applet.EmbeddedViewerApplet.class',
archive : '<%=basePath%>resources/appletviewer.jar,<%=basePath%>resources/jasperreports-applet-4.0.0.jar,<%=basePath%>resources/jasperreports-4.0.0.jar,<%=basePath%>resources/commons-collections-3.2.1.jar,<%=basePath%>resources/commons-logging-1.0.4.jar,<%=basePath%>resources/commons-beanutils-1.8.0.jar,<%=basePath%>resources/commons-digester-1.7.jar,<%=basePath%>resources/commons-javaflow-20060411.jar,<%=basePath%>resources/org-netbeans-core.jar',
width : "100%",
height : 600
};
var parameters = {
fontSize : 16,
REPORT_URL : '<%=basePath%>servlet/JasperReportServlet?startDate=<%=request.getParameter("startDate")%>&endDate=<%=request.getParameter("endDate")%>&user=' + user + '&reportType=<%=request.getParameter("reportType")%>'
};
var version = '1.4';
deployJava.runApplet(attributes, parameters, version);
</script>
every jar i referred in the applet attributes exist the resource folder of my webroot, which are
appletviewer.jar commons-beanutils-1.8.0.jar
commons-collections-3.2.1.jar commons-digester-1.7.jar
commons-javaflow-20060411.jar commons-logging-1.0.4.jar
jasperreports-4.0.0.jar jasperreports-applet-4.0.0.jar
org-netbeans-core.jar
all the jars are signed today, so no validity expires. i have double check all the things.
but it always shows the above error. in iReport i can view the report and it is compiled to jasper object with no error.
the java console from control panel
http://pastebin.com/Xt6303tT
My question is
why the classNotFound Exception happens ? i check in the temp cache that the collections file is downloaded succesfully and in the above console log it shows that the jars are successfully downloaded to the host computer.
Thank You
Mihir Parekh
