SEI CERT Oracle Coding Standard for Java

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changes.mady.by.user Shannon Haas

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bgColor#ccccff
public class BigInteger {
  public BigInteger(String str) {
    // throws a security exception if not allowed
    this(str, check(thisBigInteger.getClass(class))); 
  }

  private BigInteger(String str, boolean securityManagerCheck) {
    // regular construction goes here
  }

  private static boolean check(Class c) {
    // Confirm class type
    if (c != java.math.BigInteger.class) {
      // Check the permission needed to subclass BigInteger
      // throws a security exception if not allowed
      securityManagerCheck(); 
    }
    return true;
  }
}

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[[API 2006

AA. References#API 06]]

Class BigInteger

]]></ac:plain-text-body></ac:structured-macro>

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="9d111de0fa8f3615-e1397ec1-4b534034-987dbd49-dd8bd17a23e6ad37c42130ee"><ac:plain-text-body><![CDATA[

[[Bloch 2008

AA. References#Bloch 08]]

Item 1. Consider static factory methods instead of constructors

]]></ac:plain-text-body></ac:structured-macro>

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="704bdc9ccb7191f6-5e5c5c80-4cdd44a5-bd508f85-6a5efdec586c3f5e0d9f05f5"><ac:plain-text-body><![CDATA[

[[Gong 2003

AA. References#Gong 03]]

Chapter 6, Enforcing Security Policy

]]></ac:plain-text-body></ac:structured-macro>

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[[Lai 2008

AA. References#Lai 08]]

Java Insecurity, Accounting for Subtleties That Can Compromise Code

]]></ac:plain-text-body></ac:structured-macro>

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[[McGraw 1999

AA. References#McGraw 99]]

Chapter Seven, Rule 3. Make everything final, unless there's a good reason not to

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[[Ware 2008

AA. References#Ware 08]]

]]></ac:plain-text-body></ac:structured-macro>

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