"Developers usually have their programs write log and debug information to the standard output during coding and testing. This results in a lot of text being printed to Eclipse's console view, often more than can be easily surveyed. Since at any given time, only a small part of this information is of primary interest to the developer, a tool which highlights specific lines or words can significantly increase the readability of this output.
Grep Console allows you to define a series of regular expressions which will be tested against the console output. Each expression matching a line will affect the style of either the entire line or parts of it. For example, error messages could be set to show up with a red background, or integer values showing the state of a certain variable could be rendered in bold font. "
"JSwat is a graphical Java debugger front-end, written to use the Java Platform Debugger Architecture and based on the NetBeans Platform. JSwat is open-source software and is freely available in both binary and source code form. Its features include sophisticated breakpoints; colorized source code display with code navigator; byte code viewer; movable display panels showing threads, call stack, visible variables, and loaded classes; command interface for more advanced features; and Java-like expression evaluation, including method invocation. "
