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Jars not recognizing in unix

 
Greenhorn
Posts: 6
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Hello

I have the following batch file in NT
C:
cd C:\Neti\JavaProgs\062806\FlieWatch
java -cp %CD%;%CD%\lib\j2ee.jar;%CD%\lib\mail.jar;%CD%\lib\log4j-1.2.13.jar;%CD%\lib\commons-logging-1.1.jar; FileAlert DEV

pause

The application now needs to be moved to solaris environment. So I changed the batch file to shell script as follows

for name in /home/ln52701/FileWatcher/lib/*.jar ; do
CP=$CP:$name
done
CP=$CP:/home/ln52701/FileWatcher/lib/FA.jar
java -cp $CP FileAlert DEV 2>/home/ln52701/FileWatcher/lib/log.err 1>/home/ln52701/FileWatcher/lib/log.out

When I run the script I am getting the following error

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Category
~
~

I beleive the script file is not recognizing the jars properly...

I tried to compile the source files individually

$ javac -classpath /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar ApplicationProperties.java
ApplicationProperties.java:10: cannot resolve symbol
symbol : class Logger
location: package log4j
import org.apache.log4j.Logger;
^
ApplicationProperties.java:22: cannot resolve symbol
symbol : class Logger
location: class ApplicationProperties
private static Logger log;
^
2 errors
$

Am I giving wrong path or where its going wrong....

Thanks In advance for help

Sridhar
 
author and iconoclast
Posts: 24203
44
Mac OS X Eclipse IDE Chrome
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Well, in the last example, you'd want to try

ls -l /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar

to make sure the jar was really there, was of non-zero length, and was readable by you.

In your shell script, I'd want to add

echo $CP

right before you run java.
 
Leela Sridhar
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Hello

I added the ls and echo please find below the output and error messages

$ ksh FA.sh
ls -l /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar
:/home/ln52701/FileWatcher/lib/FA.jar:/home/ln52701/FileWatcher/lib/commons-logging-1.1.jar:/home/ln52701/FileWatcher/lib/j2ee.jar:/hom
e/ln52701/FileWatcher/lib/log4j-1.2.13.jar:/home/ln52701/FileWatcher/lib/mail.jar:/home/ln52701/FileWatcher/lib/FA.jar
$

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Category


I changed the permission chmod 777 log4j-1.2.13.jar

infact all jar files

Sridhar
 
Ernest Friedman-Hill
author and iconoclast
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Looks like you said "echo ls -l /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar", rather than executing the actual ls command; we want to run ls to make sure that file is actually where you think it is.
 
Leela Sridhar
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I run the command

$ ls -l /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar
-rwxr-xr-x 1 ln52701 misc 358172 Jul 27 12:31 /home/ln52701/FileWatcher/source/lib/log4j-1.2.13.jar

$

Sridhar
 
Leela Sridhar
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Hey

I found out the problem..the problem is the jar files got corrupted...I tried to look into jar files using the command jar tf <jar-filename> it throws an error...if the jar file is not corrupted then it will list of all the file names.

I updated the correct jar files and everything worked...

I hope it could be one of the points when problems like ClassNotFound Exceptions come just look into jar file...who knows
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
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