How to debug class files in eclipse

I decided to create a new decompiler plugin, and the initial version contained Jad and JD. The plugin now supports five decompilers and is based on the Eclipse JDT plugin. JDT provides a lot of features and has good scalability, so the decompiler plugin can be implemented easily. The following graph is the decompiler plugin architecture diagram:. The first Java decompiler was Jad, and the initial release was before , 18 years ago.

Then JD appeared, it supported Java 7, much better than Jad. The Eclipse Class Decompiler integrates all of them in one plugin. FernFlower supports all Java versions, but JD is the fastest.

You can set the default decompiler of your choice in the Eclipse preference section. If the class file contains debug attributes, you can debug it in the Eclipse Class Decompiler Viewer. There are two ways to debug a class file. The first way is to set the decompiler preference, and to realign the line number.

You can also go to "Debug configurations" and select the "Source" tab, then you can see the "Source Lookup Path" — maxivis. Graeme Graeme Now there is a way to attach the sources - see Steven's answer below — Iftah.

Shivaramakrishna Agapu Shivaramakrishna Agapu 1 1 silver badge 2 2 bronze badges. Simulant Simulant I found a good solution for me here: Using Android library in eclipse and jumping to class files instead of source file that is within eclipse workspace Simply, select each library project your project depends on, and use Top or Up to move it above the projects outputs. Seraphim's Seraphim's Sergei Krivonos Sergei Krivonos 3, 2 2 gold badges 34 34 silver badges 46 46 bronze badges.

Select tab Order and Export select library that you can't reach code and then click on button Bottom Then click on Apply and Close hope this can help you. AntimoV AntimoV 41 1 1 silver badge 5 5 bronze badges.

Most of the time it happens when specific source folder are not added in build path Sources tab. Mathi Mathi 1 1 1 silver badge 4 4 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.

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Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Visit chat. Linked 1. Related It covers basic debugging knowledge and skills, so it will be easy to be understood and easy to follow. We'll see how the program executes step-by-step in debug mode. Log in Social login does not work in incognito and private browsers. Please log in with your username or email to continue.

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Download Article Explore this Article Steps. Tips and Warnings. Related Articles. Author Info Last Updated: April 24, Add variables to watch box for examination: We can see the program now is stopping at the line on which we've set a breakpoint. Now we'll add the variables into watch box to see if the program will run as we expected. Check the variable values in the watch box: Now we can see the value of num1 and num2 are as expected, but sum is still 0. Step Into: Run into the function: Now we'll use function add to calculate the sum.