To be able to show the source code of a class, the source must be available from the source path of the session. To be able to jump directly to the chosen method in the source code viewer and to display the bytecode of a class, the class file must be available from the class path of the session. Changes in class path and source path for an active session are recognized immediately by the source and bytecode viewer.
If you look for the bytecode, select the "Code" child of the desired
method. The bytecode viewer is extensively hyperlinked, allowing you to
navigate easily to constant pool entries or branch targets and go back
and forth in your navigation history with the
navigation controls at the top of the tab.