I'm trying to display an image once it is uploaded using . Once the user upload the image i'm trying to display the image using the below code.

<a4j:mediaOutput element="img" createContent="#{bean.paint}" value="1" style="width:275px; height:75px;" mimeType="image/jpg" id="media" cacheable="false"> <f:param value="#{bean.timeStamp}" name="time" /> </a4j:mediaOutput>

My Java Code is

public Part part; //getters & Setters public void paint(OutputStream stream, Object data) throws IOException{ InputStream inputStream = null; try { inputStream = part.getInputStream(); stream.write(IOUtils.toByteArray(inputStream)); stream.close(); } catch (Exception e){

} }



My part is containing the file. but i'm getting the bellow exception.



SEVERE: Input error for deserialize data java.io.InvalidClassException: Unauthorized deserialization attempt; org.apache.el.lang.VariableMapperImpl at org.richfaces.util.LookAheadObjectInputStream.resolveClass(LookAheadObjectInputStream.java:97) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.apache.el.MethodExpressionImpl.readExternal(MethodExpressionImpl.java:297) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at com.sun.faces.facelets.el.TagMethodExpression.readExternal(TagMethodExpression.java:158) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readArray(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.richfaces.util.Util.decodeObjectData(Util.java:237) at org.richfaces.resource.DefaultCodecResourceRequestData.getData(DefaultCodecResourceRequestData.java:97) at org.richfaces.resource.ResourceFactoryImpl.createResource(ResourceFactoryImpl.java:337) at org.richfaces.resource.ResourceHandlerImpl.handleResourceRequest(ResourceHandlerImpl.java:156) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:643) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.wellsfargo.ecar.common.util.ServerFilter.doFilter(ServerFilter.java:46) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:304) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Apr 6, 2015 4:06:13 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path



Is there anything i'm missing. please help me out.