Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
BaseX - BaseX is a very light-weight, high-performance and scalable XML Database engine and XPath/XQuery...
Azure Service Bus - Learn how to set up messaging that connects applications and services across on-premises and cloud environments. Tutorials, videos, API references, and more.
eXistdb - High-performance native XML database engine and all-in-one solution for application building.