[Library]: Adding Library Into Java[TM] Project « mariosimaremare
it's caused by the missing of class javax.mail.Message , then “how to know the library [jar file] if i just know the required class?” simply open your browser and go to http://findjar.com/ to seach what jar file contains the class. right click on the project then select properties,; go to 'Libraries' category,; select 'Add JAR/Folder' to find you JAR file. but if you don't use any IDE, you have to link the JAR to the 'Environtment Variables', i will show how to add it
Source: http://mariosimaremare.wordpress.com/2010/02/07/library-adding-library-into-javatm-project/








