Java#

Java is a general-purpose, high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible. Compiled Java code can run on all platforms that support Java without the need to recompile.


Software#

This page lists all projects using this programming language or deployment platform. Only the main server-side requirements, packaging or distribution formats are considered.


ActiveMQ#

Java message broker.

Website Source Code

★2457 2026-09-08 Java Apache-2.0

Queuing


Apache Ant#

Automation build tool, similar to make, a library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other.

Website Source Code

★471 2026-09-06 Java Apache-2.0

Automation


Apache Directory Server#

Extensible and embeddable directory server, certified LDAPv3 compatible, with Kerberos 5 and Change Password Protocol support, triggers, stored procedures, queues and views.

Website Source Code

★188 2026-08-10 Java Apache-2.0

Identity Management - LDAP


Apache Maven#

Build automation tool mainly for Java. A software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project’s build, reporting and documentation from a central piece of information.

Website Source Code

★5339 2026-09-09 Java Apache-2.0

Automation


Bazel#

A fast, scalable, multi-language and extensible build system. Used by Google.

Website Source Code

★25821 2026-09-09 Java Apache-2.0

Automation


CloudSlang#

Flow-based orchestration tool for managing deployed applications, with Docker capabilities.

Website Source Code

★95 2026-08-18 Java Apache-2.0

Deployment Automation


CloudStack#

Cloud computing software for creating, managing, and deploying infrastructure cloud services.

Website Source Code

★3046 2026-09-09 Java Python Apache-2.0

Deployment Automation


Eclipse#

IDE written in Java with an extensible plug-in system.

Website Source Code

★? ? Java EPL-1.0

Editors


Flume#

Distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data.

Website Source Code

★2570 2026-09-02 Java Apache-2.0

Log Management


GoCD#

Continuous delivery server.

Website Source Code

★7434 2026-09-08 Java Ruby Apache-2.0

Continuous Integration & Continuous Deployment


Gradle#

Another build automation system.

Website Source Code

★18831 2026-09-09 Groovy Java Apache-2.0

Automation


Hadoop Distributed Filesystem (HDFS)#

Distributed file system that provides high-throughput access to application data.

Website Source Code

★15654 2026-09-08 Java Apache-2.0

Distributed Filesystems


Jenkins#

Continuous Integration Server.

Website Source Code

★26526 2026-09-08 Java MIT

Continuous Integration & Continuous Deployment


KeyCloak#

Open Source Identity and Access Management.

Website Source Code

★36688 2026-09-09 Java Apache-2.0

Identity Management - Single Sign-On (SSO)


Kroki#

API for generating diagrams from textual descriptions.

Website Source Code

★4318 2026-08-22 Java MIT

Diagramming


NetXMS#

Open Source network and infrastructure monitoring and management.

Website Source Code

★396 2026-09-09 Java C++ C LGPL-3.0 GPL-3.0

Monitoring & Status Pages


oVirt#

Manages virtual machines, storage and virtual networks.

Website Source Code

★? ? Java Apache-2.0

Virtualization


Riemann#

Flexible and fast events processor allowing complex events/metrics analysis.

Website Source Code

★4268 2026-04-05 Java EPL-1.0

Monitoring & Status Pages


Wren:AM#

Access management platform providing adaptive authentication, SSO, federation, and fine-grained authorization for web and API resources.

Website Source Code

★55 2026-09-07 Java CDDL-1.0

Identity Management - Single Sign-On (SSO)


Wren:DS#

LDAPv3-compliant directory service providing a high-performance, highly available, and secure identity data store for enterprise environments.

Website Source Code

★45 2026-09-09 Java CDDL-1.0

Identity Management - LDAP


Wren:IDM#

Identity management and governance platform for lifecycle management, access governance, and comprehensive auditability.

Website Source Code

★48 2026-09-04 Java CDDL-1.0

Identity Management - Tools and web interfaces


Wren:IG#

Identity gateway and reverse proxy enforcing authentication, authorization, and SSO without requiring application changes.

Website Source Code

★7 2026-09-04 Java CDDL-1.0

Identity Management - Single Sign-On (SSO)


XtreemFS#

Distributed, replicated and fault-tolerant file system for federated IT infrastructures..

Website Source Code

★348 2024-10-07 Java BSD-3-Clause

Distributed Filesystems


ZooKeeper#

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Website Source Code

★12801 2026-09-03 Java C++ Apache-2.0

Service Discovery