This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Please try to do a search of the forum first to see if this issue was discussed before.
Even if you search for "classpath" you will be able to find webpage You can do a more narrow search if wide search returns too many results.