Covert Java™: Techniques for Decompiling, Patching, and Reverse Engineering

Chapter 8. Snooping the Runtime Environment

	“Logic is a systematic method of coming to the wrong conclusion with confidence.”
	--Murphy's Technology Laws

IN THIS CHAPTER

• The Value of Understanding the Runtime Environment 75

• System Properties 76

• System Information 77

• Memory Information 78

• Network Information 79

• Accessing Environment Variables 79

• Quick Quiz 80

• In Brief 80

The Value of Understanding the Runtime Environment

Hacking systems and troubleshooting applications often require manipulation of various system parameters. For example, to install a patched version of a class in Chapter 5, “Replacing and Patching Application Classes,” we modified the value of the CLASSPATH variable. In Chapter 7, “Manipulating Java Security,” you saw how to use a system ...