The Jikes Debugger is a multi-paneled graphical debugger that allows you to inspect the current state of a remotely executing Java program. The debugger allows you to view program threads, call stacks, local variables, classes, and source files during execution. It is written in Java and uses the java.awt package to generate the graphics and the sun.tools.debug package to run the remote virtual machine. The Jikes Debugger is written in pure java and should work on Linux (the source code is available).
jivesyslog is a sysklogd package that displays text in Jive instead of english. The sysklogd package contains two system utilities (syslogd and klogd) which provide support for system logging. Syslogd and klogd run as daemons (background processes) and log system messages to different places, like sendmail logs, security logs, error logs, etc.