android eclipse debug jar file with source code

Question

I am trying to debug a jar file with attached source code. I am able to debug it step by step, but unable to see any variable values.

Can anyone help me with this?

Answer 1

In order to see variable values in Java bytecode, it needs to be compiled with debug symbols. A typical release version of a jar will not have this debug info.

Related: Why are some java libraries compiled without debugging information

Typically, in this case I make a debug variable in my own code before the breakpoint, something like:

...
int debugVal = libraryClass.getValueIWantToDebug();
System.out.println("Breakpoint");
...

Then you'll have the value in your own code, which will be accessible during debug.