i am working on Android project using Eclipse
Eclipse IDE for Java Developers
Version: Indigo Service Release 1
Build id: 20110916-0149
so when i try to debug the code after few step over (f6) the code i get this windows and after that it does not do anything… what should i do to fix this? anybody?

This is not really an error.
FutureTask.java is not your code and actually included in some third party library (or in other project). You only has the .class inside the jar.
Since it’s not your code, i believe you should not really need to debug in this FutureTask level. You can just do a step up.
However if you insist to debug it, you should attach the project/source code where the FutureTask is located by clicking “Change Attached Source…” If it’s a third party, usually there is a source project in the same place you download the jar. If it’s your other project, just point the source to your other project.