I tried to upload excel(xlsx) file with rich:fileUpload and i could upload file without error but when i try to open this file to read with poi library get this error. (I used richfaces 3.3.3.Final , jsf 1.2, spring 3.1, spring web-flow 2.5, spring security on weblogic server. )
Jan 21, 2012 12:24:41 AM com.sun.faces.lifecycle.RenderResponsePhase execute
INFO: WARNING: FacesMessage(s) have been enqueued, but may not have been displayed.
sourceId=null[severity=(ERROR 2), summary=(A problem occurred when trying to execute method 'YYYYYYY' on object of type 'XXXXXXXXXX'), detail=(A problem occurred when trying to execute method 'YYYYYY' on object of type 'XXXXXXXXXXXl')]