...
If some internal object contains immutable data that is not of sensitive nature, create and return its shallow copy so that as the caller cannot modify the originally referenced data. This solution highlights how a shallow copy of the internal hash table can be created and returned. Ergo, attempts to modify the original hash table run into a dry stretch.
...
| Wiki Markup |
|---|
\[[API 06|AA. Java References#API 06]\] [method clone()|http://java.sun.com/javase/6/docs/api/java/lang/Object.html#clone()]
\[[Security 06|AA. Java References#Security 06]\]
\[[Bloch 08|AA. Java References#Bloch 08]\] Item 39: Make defensive copies when needed
\[[Haggar 00|AA. Java References#Haggar 00]\] [Practical Java Praxis 64: Use clone for Immutable Objects When Passing or Receiving Object References to Mutable Objects|http://www.informit.com/articles/article.aspx?p=20530]
\[[MITRE 09|AA. Java References#MITRE 09]\] [CWE ID 375|http://cwe.mitre.org/data/definitions/375.html] "Passing Mutable Objects to an Untrusted Method" |
...