Imageinfo is a single Java class that examines InputStream and RandomAccessFile objects. It checks whether the stream/file is in one of the supported image file formats and determines image width, height, and color depth. ImageInfo does not depend on the AWT or additional libraries.
Debarchiver is a simple version of the official Debian archive tool katie. It sorts packages in a way similar to the potato archives. You can use it for publishing test versions or alternative packages, or simply to sort the programs you have created. It can also generate the Packages and Source files needed by apt.
Sentinel System Monitor is a plugin-based, extendable remote system monitoring utility that focuses on central management and flexibility while still being fully-featured. Stubs are used to allow remote monitoring of machines using probes. Monitoring can support multiple architectures because the monitoring probes are filed by a library process that hands out probes based on OS/arch/hostname. Execution of blocks can be triggered by either test failure or success. It uses XML for configuration and OO Perl for most programming. Support for remote command execution via plugins allows reaction blocks to be created that can try and repair possible problems immediately, or just notify an administrator that there is a problem.
JSpell is a server-based spell checker that allows you to spell check any HTML input field and form. It is i18n compliant and has dialogs for multiple languages available. It can be used to add spell checking capabilities to HTML forms on your Web site. This spell checker is compatible with JSP, ASP, CGI, PHP, Cold Fusion, Oracle Forms, etc.