Open Source Java Task Managers

Freeplane is a widely used mind mapping tool. GTD is a time management methodology by David Allen. Freeplane GTD is an addon, that can collect tasks specified in a mindmap, thus allowing the users of Freeplane to use the concepts of GTD in their mind

AchievePro is a project management software application that integrates scheduling and ticket based task management. It is implemented as a web service, with a client for both the web and iPhone.

This is task management software for people who want to record, remind and monitor any task/job/ project. It provides facilities for breaking tasks into smaller and smaller tasks. All releases come with netbeans project and graphics files.

KINGPIN - A New Paradigm Of Working in Action Connecting People, Process, System and Technology - Kingpin can understand all forms of collaborative tasks, interact naturally with team and systems and people at scale. Say goodbye to silo solutions. Make your work effortless and efficient with a single solution on connected architecture that takes care of all your management needs. Kingpin facilitates communication between different departments, external vendors and service providers to collaborate with each other to improve productivity. Connects people, process, systems and Technology. Great Scalability Forget about all your hardware compatibility troubles. Kingpin has been optimized to work smoothly even on older generation hardware. Kingpin has been designed with great attention to detail so that it can be scaled easily and swiftly. Polyglot Persistence, Multi-tenant and De-centralized architecture brings great scalability and elasticity of infrastructure on demand.

NATO is a desktop application that takes the pain out of managing your tasks and at various times, create reports based on that work. This solution is geared for, anyone who needs task management to help with the mechanics of software development.

Nomad PIM is a free extensible personal information manager. It contains modules for personal notes, journal, address book, personal finances, task management, time tracking and evaluating basic fitness measurements.

ToDoBook is a hierarchic task management tool, it allows you to sub-divide your tasks into more manageable pieces. It is written in Java (it is portable), tasklists are stored in XML, and it is compatible with ToDoList from AbstractSpoon Software.

Ukolnicek is a multi-platform (Windows, Linux, OS X) PIM tool. It allows to keep all your personal task in a graphical and easily accessible form to help manage your time efficiently. Using synchronization you can access your data from everywhere.

School project. Task management system using a Mobile J2ME application, a Swing desktop application and a Java Webservice. This project makes use of the Google Calendar and Yahoo Maps API's.

TaskCal Internet standards based human task management and process interaction. TaskCal is an iCalendar wrapper to the jBPM process manager, providing standards based calendar agent access to an actors tasks via email (iMIP), HTTP (.ics) and CalDav.