JD-Eclipse is a plug-in for the Eclipse platform. It allows you to display all the Java sources during your debugging process, even if you do not have them all.
Installation
Download JD-Eclipse ZIP file,
Launch Eclipse,
Click on "Help > Install New Software...",
Drag and drop ZIP file on dialog windows,
Check "Java Decompiler Eclipse Plug-in",
Click on "Next" and "Finish" buttons,
A warning dialog windows appear because "org.jd.ide.eclipse.plugin_x.y.z.jar" is not signed. Click on "Install anyway" button.
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