The loaded classes of the debuggee are displayed in the "Classes" panel. The classes are shown in the form of a tree, starting with the top-level package names (e.g. "com", "java", "org"). Double-clicking on a class will cause its source file to be opened. An error will occur if JSwat cannot find the source file. This is generally caused by a missing or incorrect sourcepath setting. See the section on Classpath and Sourcepath for more information.
The class tree display may include a number in parentheses behind some of the class names. This number indicates the unique object identifier of the class loader that loaded the class. This is helpful when writing custom class loaders. Note: the number will be different each time the debuggee is started.