Transmorph is a Java library used to convert a Java object of one type into an object of another type (with another signature, possibly parameterized). It supports conversion for primitives and objects, conversion to multidimensional arrays, conversion to parameterized collections and types, and jars for JDK 1.4 and JDK 1.5. It has no dependencies. It is easy to add more converters. It can convert to a type given either its Java type (class) or signature.
The peaberry project is an extension library for Google-Guice that supports dependency injection of dynamic services. It provides OSGi integration out of the box, and has plug-in support for other registry-based service frameworks. It ships as an OSGi bundle that can be dropped into any R4 framework, such as Apache Felix or Eclipse/Equinox. You can also use peaberry outside of OSGi.
JSend NSCA is a Java API and command line tool for sending Nagios Passive Checks to the Nagios NSCA add-on. By using the JSend NSCA core API, you can easily integrate your Java applications into a Nagios monitored environment, thereby notifying Nagios of problems and issues during the running of your application. The JSend NSCA CLI command line tool wraps the API and allows you to send passive checks from the command line.
GWTruts is an easy-to-use framework for using GWT with MVC and dependecy injection. It virtually divides a GWT module into view, controller, and validation sections similar to traditional MVC Web frameworks like Apache Struts. It also provides a dependency injection mechanism similar to Spring, which you can use to customize your controllers and views. It provides a page decorator where you can define mappings between a URL and a group of controllers/views and sections of the HTML files.
SitemapGen4j is a Java library to generate XML sitemaps. It supports gzipped output, sitemap validation, and sitemap index generation. It can also generate Google-specific sitemaps, such as Mobile sitemaps, Geo sitemaps, Code Search sitemaps, Google News sitemaps, and Video sitemaps.