SEI CERT Oracle Coding Standard for Java

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changes.mady.by.user Shannon Haas

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changes.mady.by.user David Svoboda

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The webDigester is also marked final. This prevents any subclasses from assigning a new object reference to webDigester. (See OBJ10-J. Do not use public static non-final variables for more information.) It also prevents a race condition where another thread could access webDigester before it is fully initialized. (See OBJ11-J. Prevent access to partially initialized objectsBe wary of letting constructors throw exceptions for more information.)

Code Block
bgColor#ccccff
protected static final Digester webDigester = init();

protected Digester init() {
  Digester digester = createWebDigester();
  digester.getParser(); // Does not use the context Classloader at initialization, so safe
  return digester;
}

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[[CVE 2008

AA. Bibliography#CVE 08]]

[CVE-2009-0783

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0783]

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[[Gong 2003

AA. Bibliography#Gong 03]]

Section 4.3.2, Class Loader Delegation Hierarchy

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[[JLS 2005

AA. Bibliography#JLS 05]]

§4.3.2, "The Class Object"

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[[Tomcat 2009

AA. Bibliography#Tomcat 09]]

[Bug ID 29936

https://issues.apache.org/bugzilla/show_bug.cgi?id=29936], API Class org.apache.tomcat.util.digester.Digester, [Security fix in v 6.0.20

http://tomcat.apache.org/security-6.html]

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