Josh Bloch  wrote the following article to explain why the Thread.stop, Thread.suspend, Thread.resume, and Runtime.runFinalizersOnExit methods were deprecated in the 1.1 release of the Java™ platform.
 Josh Bloch is a Senior Engineer at Sun Microsystems and the designer of the Collections package.
Deprecated Thread Methods
Why Is Thread.stop Deprecated?
Could I Catch the ThreadDeath Exception and Fix the Damaged Object?
Why are Thread.suspend and Thread.resume Deprecated?
What Should I Use Instead of Thread.suspend and Thread.resume?
What about Thread.destroy?
Why Is Runtime.runFinalizersOnExit Deprecated?
Object-Oriented Programming Concepts
Object Basics and Simple Data Objects
Classes and Inheritance
Interfaces and Packages
Handling Errors Using Exceptions
Threads: Doing Two or More Tasks at Once
I/O: Reading and Writing
User Interfaces That Swing
Appendix A. Common Problems and Their Solutions
Appendix B. Internet-Ready Applets
Appendix C. Collections
Appendix D. Deprecated Thread Methods
Appendix E. Reference