3 Replies Latest reply on Feb 15, 2011 5:27 PM by valatharv

Null pointer exception in rich faces : FileUpload causing Transfer Error

jayanthp Jan 13, 2011 9:08 PM

Hi,

I am posting here as a last resort as i am aware this issue has been reported quite some times before but after reading all the comments and articles i am still not able to solve it. Please help.

Issue Description:

using richfaces:File Upload component, click Add.., select a file for Upload, and on clicking Upload, the progress bar appears only for a quick second and then it displays Transfer Error Occured. I have attached the jpg image of the error on the screen.

Here are additional details. Please tell me if any more more information is needed.

I am using Rich Faces 3.3.1 jars and tomahawk - 1.1.5 jar

My web.xml is as follows:

From issue RF-6947 i see it worked if we use our own filters first and then use Rich faces filters. I did thata and the order is as follows:

<context-param>

<param-name>org.ajax4jsf.SKIN</param-name>

<param-value>DEFAULT</param-value>

</context-param>

<display-name>Ajax4jsf Filter</display-name>

<filter-name>ajax4jsf</filter-name>

<filter-class>org.ajax4jsf.Filter</filter-class>

<init-param>

<param-name>createTempFiles</param-name>

<param-value>true</param-value>

</init-param>

<init-param>

<param-name>maxRequestSize</param-name>

<param-value>20000000</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>ajax4jsf</filter-name>

<servlet-name>Faces Servlet</servlet-name>

<dispatcher>REQUEST</dispatcher>

<dispatcher>FORWARD</dispatcher>

<dispatcher>INCLUDE</dispatcher>

</filter-mapping>

<filter-name>MyFacesExtensionsFilter</filter-name>

<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class>

<!-- init-param>

<param-name>maxFileSize</param-name>

<param-value>20m</param-value>

</init-param>

-->

<init-param>

Set the size limit for uploaded files. Format: 10 - 10

bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB

</description>

<param-name>maxFileSize</param-name>

<param-value>100m</param-value>

</init-param>

<init-param>

Set the threshold size - files below this limit are

stored in memory, files above this limit are stored on

disk.

Format: 10 - 10 bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB

</description>

<param-name>uploadThresholdSize</param-name>

<param-value>100k</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>MyFacesExtensionsFilter</filter-name>

<url-pattern>*.jsf</url-pattern>

</filter-mapping>

<filter-mapping>

<filter-name>MyFacesExtensionsFilter</filter-name>

<url-pattern>/faces/*</url-pattern>

</filter-mapping>

<servlet-name>Faces Servlet</servlet-name>

<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>Faces Servlet</servlet-name>

<url-pattern>*.jsf</url-pattern>

</servlet-mapping>

<session-config>

<session-timeout>30</session-timeout>

</session-config>

JSF code:

<rich:fileUpload fileUploadListener="#{fileUploadBean.listener}"

maxFilesQuantity="#{fileUploadBean.uploadsAvailable}"

id="upload" immediateUpload="#{fileUploadBean.autoUpload}"

acceptedTypes="" allowFlash="#{fileUploadBean.useFlash}">

<a4j:support event="onuploadcomplete" reRender="info" />

</rich:fileUpload>

My jboss logs:

Caused by: java.lang.NullPointerException

at org.richfaces.renderkit.FileUploadRendererBase.doDecode(FileUploadRendererBase.java:140)

at org.ajax4jsf.renderkit.RendererBase.decode(RendererBase.java:75)

at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:764)

at javax.faces.component.UIInput.decode(UIInput.java:719)

at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1006)

at javax.faces.component.UIInput.processDecodes(UIInput.java:633)

at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1001)

at javax.faces.component.UIForm.processDecodes(UIForm.java:203)

at org.ajax4jsf.component.AjaxViewRoot$1.invokeContextCallback(AjaxViewRoot.java:392)

at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:238)

at org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:409)

at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:101

at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)

at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)

... 33 more

19:32:17,474 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception

java.lang.NullPointerException