This topic has not yet been written. The content below is from the topic description.
A element is used to define method and/or constructor you want to watch for in a call stack. It is top down, where the first declared element in a is the top of the Java call stack. Each element expresses either a method or constructor. This declaration will try to eat part of the call stack starting from the top. If it successfully matches a member in the stack, then next element will be matched from the point in the stack the last call matched. This first cflow-stack declares that method1, method2, and method3 should be in the call stack in that order. The next Says that the POJO constructor with an int parameter and method3 must be in the call stack in that order