JSwat是一个可扩展的，单机的，绘图的Java debugger前端(基于Netbean 平台)。应用由Javasoft提供的Java Platform Debugger Architecture (JPDA)。特性包括有条件中断和监视，彩色源码展示；绘图展示线性关系，堆叠桢，可视化变量和载入类；命令界面提供更多先进的特性，和类似Java表达评估。
使用截图：
新版本的提升：
Implemented RFE 610: provide option to step over synthetic methods.
Implemented RFE 778: set default focus in most dialogs.
Implemented RFE 800: added 'class' column to threads view.
Implemented RFE 858: added tooltips to dialog fields.
Implemented RFE 920: add toString() column to Variables view.
Implemented RFE 936: show suspend policy property using tags.
Implemented RFE 959: use sensible default installation paths.
Implemented RFE 983: bulk add feature for path editor.
Implemented RFE 992: added 'resume immediately' to attach dialog.
官方下载：
http://www.bluemarsh.com/java/jswat/downloads.html
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