Problem of loading the Manifest file

Question

Hello Friends,
I have developed a project in J2SE.I am creating a JAR file of it but I am facing a problem in doing that. My Problem is The Manifest File I have created is not loading by the JVM. I have created the Manifest file which contains the following code:
Main-Class: secl/Login
and save it with the name Login.mf in C drive where my project folder is also exists. Then run the following command:
C:\>jar cvfm secl.jar Login.mf secl\*.class
then, following error is shown:
java.io.FileNotFoundException: Login.mf (The system cannot find the file specified)
Then, I run the following command:
C:\>reg query HKCR\jarfile\shell\open\command
Then, I received the following msg:
! REG.EXE VERSION 3.0
HKEY_CLASSES_ROOT\jarfile\shell\open\command
<NO NAME> REG_SZ "C:\Program Files\Java\j2re1.4.1_03\bin\javaw.exe" -jar "%1" %*
I think this msg says my files association is wrong. What is the meaning of this msg? My JAR file is created but Manifest file is not loading and main class is not read.Please help me about this.
I am a self learner and there is no body here to help me.

Answer 1

Hello Friends!
I have successfully created the JAR file of my project with the Manifest File including my Main Class. I had just gave the following command:
C:\>jar cfm secl.jar Manifest.txt secl/*.class
and my jar file is created. But there is a problem, when I execute this jar file at command prompt by the following command:
C:\>java -jar secl.jar
the following error msg is shown:
Exception in thread "main" java.lang.NoClassDefFoundError: secl/Login (wrong name: Login)
And also when I execute it by double clicking it then the following error msg dialog box is shown:
Could not find the main class.Program will exit!
As you suggested, I gave the main class path in Manifest file as:
Main Class: secl.Login
but the same problem is still occurring.
How can I solve this problem? Please help me.