The Java Server

 is a Level 14 building in The Simpsons: Tapped Out. Upon completion, jobs will be unlocked for other characters.

About
 is an Internet café in Springfield. It was advertised in the magazine Wired. The day of its opening it was the site of a robbery by Snake, who stole money from Homer's bank account to his computer.

Regular
Aaron Burr Astronaut Barney Benjamin Comic Book Guy Cookie Kwan Dame Judith Underdunk Doug Fit Milhouse Fit Tony Gary Helen Lovejoy Jesse Grass Krusty LadyBot Lindsey Naegle Quinn Hopper Shauna Squeaky Voice Teen The Collector Wizard Martin
 * Download New Speeches - 24h
 * Study for Online College Courses - 24h
 * Roleplay as a Halfling Online - 12h
 * Play MMORPGs All Day - 24h
 * Visit The Java Server - 8h
 * Hack Co-workers' E-mails - 24h
 * Renew her SAG Membership - 60m
 * Learn a New Scripting Language - 4h
 * Roleplay as an Elf Online - 12h
 * Write a Fitness Blog Post - 8h
 * Post to His Fitness Page - 24h
 * Play a Card Battle Game - 4h
 * Roleplay as a Dwarf Online - 12h
 * Be Judgemental on the Internet - 24h
 * Write Dirt First Newsletter - 4h
 * Steal Jokes - 4h
 * Destroy Humanity Financially - 24h
 * Speed Date - 60m
 * Hack Coffee Snobs' Phones - 60m
 * Debate Tabs Versus Spaces - 24h
 * Cyber Bully Other Teens - 60m
 * Brew Coffee - 12h
 * Snipe Online Auctions - 12h
 * Search for Friends Online - 12h

Level Quest Based
Agnes Artie Ziff Bernice Hibbert Brandine Brockman Comic Book Guy Declan Desmond Helen Lovejoy Luann Manjula Marge Nelson Wiggum
 * Teach Computer Tricks - 12h
 * Short Sell ZiffCorp Stock - 24h
 * Learn How to Access Browsing History - 6h
 * Learn How to Access Browsing History - 6h
 * Find a Human Interest Piece - 4h
 * Snoop on Fellow Springfielders - 5h
 * Become a Slacktivist - 30m
 * Write an Overly Threatening Email to Perez Hilton - 12h
 * Learn How to Access Browsing History - 6h
 * Learn How to Access Browsing History - 6h
 * Learn How to Access Browsing History - 6h
 * Learn How to Access Browsing History - 6h
 * Change Mom's Status to "Not a Stripper" - 12h
 * Use free Wi-Fi - 3h

Character Groups

Gentlemen Springfielders
 * Surf the Net - 24h
 * Live-Stream Lance Murdock's Stunt - 4h

Promo Quest Based
Artie Ziff Database
 * Waste His Money, Too - 4h
 * Do an Online Opinion Poll - 2h

Character Groups

Criminals
 * "Like" Sideshow Bob's Fiend Book Post - 60m

Limited Time
Hippie Homer Lisa Otto Petroleus Rex Zutroy
 * Hang Out with Other Corporate Hippies - 4h
 * Go on a Coffee Run - 4h
 * Contact the Whistleblower - 24h
 * Complain Online That We Didn't Mention Papadosio - 2h
 * Consult Web-MadDoctor - 4h
 * Send Money to Nigerian Prince - 12h

Character Groups

Adult Springfieldians
 * Eat at a Restaurant - 4h 
 * Overeat - 8h

Trivia

 * has only appeared in one episode of The Simpsons, and it is grey, not brown.