Gola is a visual layout editor for Java Swing/AWT for use with the PageLayout layout manager. It allows the user to graphically lay out the graphical components of a GUI in nested rows, columns, and grids, and generates very readable Java code for the layout. The editor is a 'structured' layout editor in that it does not allow the placement of components at arbitrary positions, but as a result, the layout code is very robust and quite easy to modify.
Gollem is a Web-based file manager that provides the ability to fully manage a hierarchical file system stored in a variety of backends such as a SQL database, as part of a real filesystem, or on FTP, Samba or SSH servers. It supports uploading and downloading of files, basic file operations, permissions support, and MIME recognition and viewing of files through the Horde MIME library. It is fully internationalized and translatable.
Google C++ Testing Framework is Google's framework for writing C++ tests on a variety of platforms. It is based on the xUnit architecture, and it supports automatic test discovery, a rich set of assertions, user-defined assertions, death tests, fatal and non-fatal failures, various options for running the tests, and XML test report generation.
Google Map GPS Cell Phone Tracker allows you to track Android, iOS, Windows Phone, and Java ME cellphones using Google Maps. It has two parts, a server and phone clients. You have a choice of two servers, using asp.net and SQL server or PHP and MySQL. The server software allows you to view cellphone locations in realtime using Google Maps and store routes and view them later. The client applications send their locations to the website periodically. All four applications work properly in the background and are written natively on each platform.