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bgColor#ccccff
private static final String[] items = { ... };

public static final List<String> itemsList =
Collections.unmodifiableList(Arrays.asList(items));

Wiki MarkupNeither the original array values nor the {{public}} list can be modified by a client. For more details about unmodifiable wrappers, refer to \[void SEC14-J. Provide sensitive mutable classes with unmodifiable wrappers\]. This solution still applies if the array contains mutable items instead of {{String}}.

Risk Assessment

Incorrectly assuming that final references cause the contents of the referenced object to remain mutable can result in an attacker modifying an object thought by the programmer to be immutable.

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[[Bloch 2008

AA. References#Bloch 08]]

Item 13: Minimize the accessibility of classes and members

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[[Core Java 2004

AA. References#Core Java 04]]

Chapter 6

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[[JLS 2005

AA. References#JLS 05]]

[§4.12.4 "final Variables"

http://java.sun.com/docs/books /jls/third_edition/html/typesValues.html#4.12.4] ]]></ac:plain-text-body></ac:structured-macro>

 

§6.6 "Access Control"

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[[Mettler 2010B

AA. References#Mettler 2010B]]

 

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