BeanUtils.populate IllegalArgumentException: array element type mismatch

-
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception 
javax.servlet.ServletException: BeanUtils.populate
 org.apache.struts.util.RequestUtils.populate(RequestUtils.java:495)
 org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:816)
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:203)
 org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause 
java.lang.IllegalArgumentException: array element type mismatch
 java.lang.reflect.Array.set(Native Method)
 org.apache.commons.beanutils.ConvertUtilsBean.convert(ConvertUtilsBean.java:464)
 org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:986)
 org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:811)
 org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:298)
 org.apache.struts.util.RequestUtils.populate(RequestUtils.java:493)
 org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:816)
 org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:203)
 org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729)


Answer : reason is, in your form bean there is any variable is miss match to your html page.
For Example : If you have any text box for date in html or jsp page and java.lang.Date type variable in form bean, so change the java.lang.Date type variable to java.lang.String type variable in your form bean.
Explaination:- Through html or jsp page you can set the values in primitive data type and it wrapper class data type in form bean only .

Comments

Post a Comment

Recent Post

Recent Posts Widget

Popular posts from this blog

Capture image from webcam java code, examples

-
import java.applet.Applet; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dimension; import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Panel; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.image.BufferedImage; import java.io.FileOutputStream; import java.net.MalformedURLException; import java.net.URL; import javax.media.Buffer; import javax.media.CaptureDeviceInfo; import javax.media.CaptureDeviceManager; import javax.media.Manager; import javax.media.MediaLocator; import javax.media.Player; import javax.media.control.FrameGrabbingControl; import javax.media.format.VideoFormat; import javax.media.util.BufferToImage; import javax.swing.JButton; import javax.swing.JComponent; import com.sun.image.codec.jpeg.JPEGCodec; import com.sun.image.codec.jpeg.JPEGE...
Read more

How to capture finger prints in java

-
Java code for capture finger prints. NBioBSPJNI.FIR_HANDLE hSavedFIR; hSavedFIR = bsp.new FIR_HANDLE(); bsp.Enroll(hSavedFIR, null); // Enroll bsp.Capture(hSavedFIR); // Capture // Get Text FIR if (bsp.IsErrorOccured() == false) { NBioBSPJNI.FIR_TEXTENCODE textSavedFIR; textSavedFIR = bsp.new FIR_TEXTENCODE(); bsp.GetTextFIRFromHandle(hSavedFIR, textSavedFIR); } // Get Binary FIR if (bsp.IsErrorOccured() == false) { NBioBSPJNI.FIR fullSavedFIR; fullSavedFIR = bsp.new FIR(); bsp.GetFIRFromHandle(hSavedFIR, fullSavedFIR); } You can capture both type in your database and file. 1)textFIR 2)BinaryFIR
Read more

Shallow Copy Deep Copy Java example

-
Shallow Copy Deep Copy  Java example Before knowing about Shallow Copy and Deep Copy you need to know about Clonable interface. Clonable interface -     Java has a clonable interface for make clone of any object.     Clonable Interface is a marker interface.     Clonable Interface has no method.     Class which implements Clonable interface, JVM give the permission for making the clone of         this class. Shallow Copy -              Clone can be archived by object.clone() method. It gives the Shallow copy of the object. In this process a new object is created That have all the value and instance variable. And if main object has any references to other object then the references are copied in the shallow copy. Example - class A implements Cloneable{         A(String personName, Integer age){  ...
Read more