Could not instantiate bean

Question

Hi Guys,
I am not much familiar with Java. I have developed my java program using jdk1.6 and am trying to register java bean using jdk.1.3.1.08 sun.beans.ole.packager utility and when i reach step 5 and click register i am getting below error message. Can someone help me understand what i am doing wrong. The class file is located in excel\test\Getfileinfo.class and it does have constructor definition in it. Thanks.
c:\jdk1.3.1_08\jre>.\bin\java -cp .\lib\rt.jar;.\lib\jaws.jar sun.beans.ole.Packager
The definition for excel.test.GetFileInfo in the JAR file
has a format error.
WARNING: Could not instantiate bean "excel.test.GetFileInfo" from JAR "C:\excel.jar"
But were unable to load the class "excel.test.GetFileInfo" because of
java.lang.ClassNotFoundException: excel.test.GetFileInfo
Common reasons for this failure include:
(1) The class is not defined in the correct package
it should be in the package "excel.test"
(2) The class has not been given the correct name
it should be called "GetFileInfo"
(3) The class file contains the wrong class or no class at all

Answer 1

This is a very general error in spring. If the jvm cannot find the class in classpath which you have defined in your spring bean configuration file it throws this error.
Try placing the hibernate3.jar and spring-orm.jar or any other concerned jar files inside the /WEB-INF/lib directory.Only adding jar files in classpath will not suffice.
Best will be put all the jar files in the /WEB-INF/lib directory and then add the jar files in classpath from here.
Edited by: supratim on Apr 9, 2011 3:39 AM