Hibernate Profiler is a real-time visual debugger allowing a development team to gain valuable insight and perspective into their usage of Hibernate.

Axis2 is a Web Services / SOAP / WSDL engine, the successor to the widely used Apache Axis  SOAP stack. There are two implementations of the Apache Axis2 Web services engine - Apache Axis2/Java and Apache Axis2/C

Apache CXF is an open source services framework. CXF helps you build and develop services using frontend programming APIs, like JAX-WS and JAX-RS. These services can speak a variety of protocols such as SOAP, XML/HTTP, RESTful HTTP, or CORBA and work over a variety of transports such as HTTP, JMS or JBI.

MT4j - Multitouch for Java™ - is an open source Java™ framework, created for rapid development of visually rich applications.  MT4j is designed to support different kinds of input devices with a special focus on multi-touch support.

odata4j is a new open-source toolkit for building first-class OData producers and first-class OData consumers in Java.

Software license management with EasyLicenser provides these benefits to you and your end customers:

• Fast integration into your application
• Low-cost
• An array of license models, with unlimited expansion
• Robust security, even for Java applications
• Sales opportunity management and audit capabilities that enable you to maximize your revenues

Orion is a network licensing platform that supports:

• Floating and named-user network licensing on LAN, WAN, VPN and the Internet
• Online / offline product activation, with relocatable user licenses and user briefcase
• Network licensing / key distribution wrapper over legacy license management systems.
• Comprehensive licensing policies: time-limited, metered, feature licensing, subdomains
• License protection for most application types: desktop / server / mobile applications, subscription management, hardware / software systems, web / document content

JavaFX is the best way to create expressive, feature-rich content. Building on the Java Platform, JavaFX delivers a compelling mix of ubiquity, capability, expressiveness and performance. The JavaFX SDK has the essential set of technologies, tools, and resources required for developers and designers to create and deploy expressive and powerful content across all the screens of your life. The JavaFX platform gives you unparalleled freedom and flexibility to create expressive content across multiple screens, including mobile devices, desktops, televisions, and other consumer devices.

Stripes is a presentation framework for building web applications using the latest Java technologies. The main driver behind Stripes is that web application development in Java is just too much work! It seems like every existing framework requires gobs of configuration. Struts is pretty feature-light and has some serious architectural issues (see Stripes vs. Struts for details). Others, like WebWork 2 and Spring-MVC are much better, but still require a lot of configuration, and seem to require you to learn a whole new language just to get started.

Spring is built on an Inversion of Control (IoC) container that enables Java components to be centrally configured and wired together—resulting in code that is more portable, reusable, testable and maintainable.

Spring is a popular and widely deployed open source framework that helps developers build high quality applications faster. Spring provides a consistent programming and configuration model that is well understood and used by millions of developers worldwide. Unlike the traditional Java EE platform, Spring provides a range of capabilities for creating enterprise Java, rich web, and enterprise integration applications that can be consumed in a lightweight, a-la-carte manner.

Put simply, Guice alleviates the need for factories and the use of new in your Java code. Think of Guice's @Inject as the new new. You will still need to write factories in some cases, but your code will not depend directly on them. Your code will be easier to change, unit test and reuse in other contexts.

Guice embraces Java's type safe nature, especially when it comes to features introduced in Java 5 such as generics and annotations. You might think of Guice as filling in missing features for core Java. Ideally, the language itself would provide most of the same features, but until such a language comes along, we have Guice.

XML-based applications often require the use of an XSLT engine for performing transformations, an XQuery engine for executing queries, and/or an XML parser for well-formedness checking and validation. Altova makes the same engines that drive its award-winning XMLSpy, MapForce, and StyleVision XML development tools available for use in your custom applications. That means you can use the very engines that have helped make Altova software the industry’s leading XML development toolset in your own applications – free of charge!

Castor is an Open Source data binding framework for Java[tm]. It's the shortest path between Java objects, XML documents and relational tables. Castor provides Java-to-XML binding, Java-to-SQL persistence, Castor XML is an XML data binding framework. Unlike the two main XML APIs, DOM (Document Object Model) and SAX (Simple API for XML) which deal with the structure of an XML document, Castor enables one to deal with the data defined in an XML document through an object model which represents that data. Castor XML can marshal almost any "bean-like" Java Object to and from XML. In most cases the marshalling framework uses a set of ClassDescriptors and FieldDescriptors to describe how an Object should be marshalled and unmarshalled from XML.

XimpleWare's VTD-XML is, far and away, the industry's most advanced and powerful XML processing model  for SOA and Cloud Computing!

XOM™ is a new XML object model. It is an open source (LGPL), tree-based API for processing XML with Java that strives for correctness, simplicity, and performance.

What is XMLBeans?

XMLBeans is a tool that allows you to access the full power of XML in a Java friendly way. The idea is that you can take advantage of the richness and features of XML and XML Schema and have these features mapped as naturally as possible to the equivalent Java language and typing constructs. XMLBeans uses XML Schema to compile Java interfaces and classes that you can then use to access and modify XML instance data.

Allora leverages leading edge XML mapping and database technology to give application developers  bi-directional access to relational databases without the need for complex SQL or XSLT programming.  Allora speeds development and deployment by accurately and transparently transforming data  structures between XML elements and relational database structures. Once Allora mapping  is in place, full bi-directional XML-RDB access is enabled. Allora gives developers a simplified,  consistent XML interface to relational data. Allora brings even more value to application developers or DBAs that need to integrate any relational  database (Oracle, DB2, SQL Server, MySQL, Sybase, MS Access, Gupta, Ingres, Datacom, IDMS,  PostgreSQL, VisualFox Pro, Pointbase, etc…) with complex industry standard schemas.

Xalan-Java is an XSLT processor for transforming XML documents into HTML, text, or other XML document types. It implements XSL Transformations (XSLT) Version 1.0 and XML Path Language (XPath) Version 1.0 and can be used from the command line, in an applet or a servlet, or as a module in other program. Xalan-Java implements the javax.xml.transform interface in Java API for XML Processing (JAXP) 1.3. This interface provides a modular framework and a standard API for performing XML transformations, and utilizes system properties to determine which Transformer and which XML parser to use. Xalan-Java also implements the javax.xml.xpath interface in JAXP 1.3, which provides an object-model neutral API for evaluation of XPath expressions and access to the evaluation environment.

The Open Source SAXON XSLT processor developed by Michael Kay of Saxonica Limited. It also provides information about commercial versions of the Saxon product available from Saxonica.

The Saxon package is a collection of tools for processing XML documents. Saxon continues its tradition of implementing new W3C drafts as soon as they become available.

JXMLPad is a pure Swing java component/framework for editing XML/XHTML document.