CODEWITHSUNDEEP
javajar
Rachel
Rachel

Reputation: 103397

NoClassDefFoundError thrown even when required class is present in classpath

Trying to run jar program and getting class not found error.

As shown in the figure, I have packaged all my dependent jar under lib folder and packaged it inside jar file. enter image description here

Contents of lib directory:

enter image description here

In my manifest.mf file i have

Manifest-Version: 1.0
Class-Path: .\lib\arapi63.jar;.\lib\spring.jar;.\lib\commons-logging.j
 ar;.\lib\log4j.jar;..\conf;.\lib\ojdbc14.jar
Created-By: 1.5.0_12 (Sun Microsystems Inc.)
Main-Class: RemedyRecord

when i try to run this jar using 

    java -jar remedyDSTX.jar 
    Exception in thread "main" java.lang.NoClassDefFoundError:    
                             com/remedy/arsys/api/ARException

No ARException class is present in arapi63.jar which is present in my classpath and so am not sure why is that not referenced here...any thoughts?

Update:

Manifest-Version: 1.0
Class-Path: lib/arapi63.jar;lib/spring.jar;lib/commons-logging.jar;lib
 /log4j.jar;lib/ojdbc14.jar
Created-By: 1.5.0_12 (Sun Microsystems Inc.)
Main-Class: RemedyRecord

I updated my manifest as per Jon's comment below but still am getting same error message.

Upvotes: 0

Views: 215

Answers (1)

Jon Skeet
Jon Skeet

Reputation: 1499780

I believe the problem is the format of your Class-Path entry.

As per the tutorial:

You specify classes to include in the Class-Path header field in the manifest file of an applet or application. The Class-Path header takes the following form:

Class-Path: jar1-name jar2-name directory-name/jar3-name

Note that this is space-separated, and uses a forward-slash between the directory name and the jar file name.

So try a Class-Path entry of:

Class-Path: lib/arapi63.jar lib/spring.jar lib/commons-logging.jar lib/log4j.jar lib/ojdbc14.jar

Note that I've removed the ../conf part - I don't believe you can add a directory to the classpath within a jar file manifest. (I've just tried, and it didn't work.)

Upvotes: 3

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