Dear All, The compilation of the jar file is done successfully , after running the application i found the following errors: java.lang.NoClassDefFoundError: org.springframework.core.CollectionFactory java.lang.NoClassDefFoundError: edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantLock$NonfairSync i set the CLASSPATH variable before running, the class path points to the path of all the jar files like spring.jar, and i opened the jar file and i found that it contains the org.springframework.core.CollectionFactory class (which make the error). but i don't know what is the error i compiled it with the correct --classpath option and i set the CLASSPATH variable correctly , could anyone advice about this error ? Thanks Hegazy ---------------------------------------- > Date: Wed, 8 Jul 2009 20:02:47 +0100 > From: aph@xxxxxxxxxx > To: engmohheg@xxxxxxxxxxx > CC: gcc-help@xxxxxxxxxxx > Subject: Re: undefined refrence error > > mohammed hegazy wrote: >> Dear Andrew, >> >> Thank you very much for this information i want to ask , do you main i use the -L option with the path for the .jar.so file without -llibname . > > Yep, just the same. > > Andrew. _________________________________________________________________ Show them the way! Add maps and directions to your party invites. http://www.microsoft.com/windows/windowslive/products/events.aspx