I want to parse one xml file and convert into Pojo object then displaying the content of the xml file on the jsp page. I'm using only one dependency,
versions :
Dataformat Dependency :
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.8.0.rc1</version>
</dependency>
Main logic : (JacksonDeserializer.java)
XmlMapper xmlMapper = new XmlMapper();
SimpleModule module = new SimpleModule();
Channel ch = new Channel();
module.addDeserializer(List.class, ch.new ChannelDeserializer());
xmlMapper.registerModule(module);
xmlMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
Rss rss = xmlMapper.readValue(new File("filepath"), Rss.class);
Channel channel = rss.getChannel();
JacksonDeserializer obj = new JacksonDeserializer();
List<Item> item = channel.getItem();
obj.setItem(item);
//getter setter method for List<Item> item
index.jsp :
<body>
<%
JacksonDeserializer obj = new JacksonDeserializer();
obj.readXML();
List<Item> item = obj.getItem();//calling getter method of JacksonDeserializer
for (Item i : item) {
%>
<%="title : " + i.getTitle()%>
<%="link : " + i.getLink()%>
<%="description : " + i.getDescription()%>
<%="pubdate : " + i.getDate()%>
<%
}
%>
</body>
when I'm running this WebApplication, index.jsp page showing exception like this :
HTTP Status 500 - Internal Server Error
type : Exception report
message : Internal Server Error
description : The server encountered an internal error that prevented it from fulfilling this request.
exception : java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.SerializationConfig.withDefaultPrettyPrinter(Lcom/fasterxml/jackson/core/PrettyPrinter;)Lcom/fasterxml/jackson/databind/SerializationConfig;
note : The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1.1 logs.
Server-log :
Info: visiting unvisited references
Info: Loading application [RSSDemo] at [/RSSDemo]
Info: RSSDemo was successfully deployed in 212 milliseconds.
Warning: StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.SerializationConfig.withDefaultPrettyPrinter(Lcom/fasterxml/jackson/core/PrettyPrinter;)Lcom/fasterxml/jackson/databind/SerializationConfig;
at com.fasterxml.jackson.dataformat.xml.XmlMapper.<init>(XmlMapper.java:86)
at com.fasterxml.jackson.dataformat.xml.XmlMapper.<init>(XmlMapper.java:67)
at com.fasterxml.jackson.dataformat.xml.XmlMapper.<init>(XmlMapper.java:49)
at com.mycompany.rssdemo.JacksonDeserializer.readXML(JacksonDeserializer.java:32)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:63)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
at java.lang.Thread.run(Thread.java:745)
when I'm trying to display this content on the console it is displaying in a good manner but when I'm trying to display it on web this exception is showing, so I just want to know what is exact issue for this exception and what is the solution for this?
