Java.lang.NullPointerException fileupload richfaces

Assuntos Gerais
#1

Bom dia,

Eu estou trabalhando com o componente rich:fileUpload, porém assim que eu tento fazer o upload da imagem aparece esse erro:

Segue o erro + trechos de códigos

Erro:

GRAVE: Servlet.service() for servlet [Faces Servlet] in context with path [/GerenciadorCondominio] threw exception
javax.el.ELException: /pages/formCadastroCondomino.xhtml @67,107 createContent="#{fileUploadMB.paint}": java.lang.NullPointerException
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:111)
	at org.richfaces.resource.MediaOutputResource.encode(MediaOutputResource.java:62)
	at org.richfaces.resource.UserResourceWrapperImpl.encode(UserResourceWrapperImpl.java:188)
	at org.richfaces.resource.UserResourceWrapperImpl.getInputStream(UserResourceWrapperImpl.java:159)
	at org.richfaces.resource.CachedResourceImpl.initialize(CachedResourceImpl.java:176)
	at org.richfaces.resource.ResourceHandlerImpl.handleResourceRequest(ResourceHandlerImpl.java:167)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:310)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	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)
Caused by: java.lang.NullPointerException
	at org.richfaces.request.FileUploadMemoryResource.getSize(FileUploadMemoryResource.java:58)
	at org.richfaces.request.UploadedFile25.getSize(UploadedFile25.java:84)
	at org.richfaces.request.BaseUploadedFile.getData(BaseUploadedFile.java:58)
	at br.com.xyz.gencon.controller.FileUploadMB.paint(FileUploadMB.java:37)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	... 22 more

xhtml


		<rich:fileUpload fileUploadListener="#{fileUploadMB.listener}" id="upload" acceptedTypes="jpg, gif, png, bmp" clearLabel="limpar" addLabel="Adcionar" 
							uploadLabel="Upload" clearAllLabel="Apagar" immediateUpload="true" 
                			ontyperejected="alert('Somente Arquivos com final jpg');" maxFilesQuantity="2" 
                			styleClass="abcd" deleteLabel="Excluir" >
                			<a4j:ajax event="uploadcomplete" execute="@none" render="info"  />
            		</rich:fileUpload>
					<h:panelGroup id="info">
						<rich:panel bodyClass="info" >            
                        	<f:facet name="header">
	                        	<h:outputLabel value="Uploaded Files Info" />
    	                	</f:facet>
	    	                <rich:dataGrid columns="1" value="#{fileUploadMB.arquivos}" var="file" rowKeyVar="row">
	    	                	<rich:panel>
									<h:panelGrid columns="2">
										<a4j:mediaOutput element="img" mimeType="image/jpeg" createContent="#{fileUploadMB.paint}"
		                                    value="#{row}" style="width:100px; height:100px;" cacheable="true" >
		                                    <f:param value="#{fileUploadMB.timeStamp}" name="time" />
		                    			</a4j:mediaOutput>
										<h:panelGrid columns="2">
											<h:outputText value="tamanho: " />
											<h:outputText value="#{file.name}" />											
										</h:panelGrid>
									</h:panelGrid>
		                    	</rich:panel>	                                
							</rich:dataGrid>
						</rich:panel>	                    
                    </h:panelGroup>

Web.xml


<context-param>
        <param-name>org.richfaces.fileUpload.createTempFiles</param-name>
        <param-value>false</param-value>
</context-param>
    
 <context-param>
        <param-name>org.richfaces.fileUpload.maxRequestSize</param-name>
        <param-value>1000000</param-value>
 </context-param>

MB


private ArrayList<UploadedFile25> arquivos = new ArrayList<UploadedFile25>();

 public void listener(FileUploadEvent event) throws Exception {
		 UploadedFile25 item = (UploadedFile25) event.getUploadedFile();		 
	     this.arquivos.add(item);
	
	 }
	 
	 public void paint(OutputStream stream, Object object) throws IOException  {	      	 
	    	 stream.write(arquivos.get((Integer) object).getData());
	         stream.close();		
	 }

Estou usando JSF 2.0
RichFaces 4.1.0

Obrigado

#2

Ainda não sei o porquê, mas quando fiz essa substituição deu certo.

Import

import org.richfaces.request.UploadedFile25;

Antes:

private ArrayList<UploadedFile25> arquivos = new ArrayList<UploadedFile25>();

Agora:

private ArrayList<byte[]> arquivos = new ArrayList<byte[]>();
#3