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public class Cycle {
private final int balance;
private static final int deposit = (int) (Math.random() * 100); //random deposit
private static final Cycle c = new Cycle(); //inserted after initialization of required fields
public Cycle(){
balance = deposit - 10; //subtract processing fee
}
public static void main(String[] args) {
System.out.println("The account balance is: " + c.balance);
}
}
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Notably, class initialization cycles can also occur because of circularity in the code present within the {{static}} initializers of two or more classes \[[Findbugs 08|AA. Java References#Findbugs 08]\]. |
Risk Assessment
Initialization cycles may lead to unexpected results.
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\[[JLS 05|AA. Java References#JLS 05]\] Sections [8.3.2.1, Initializers for Class Variables|http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.3.2.1]; [12.4, Initialization of Classes and Interfaces|http://java.sun.com/docs/books/jls/third_edition/html/execution.html#12.4] \[[Bloch 05|AA. Java References#Bloch 05]\] Puzzle 49: Larger Than Life \[[MITRE 09|AA. Java References#MITRE 09]\] [CWE ID 665|http://cwe.mitre.org/data/definitions/665.html] "Improper Initialization" |
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