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"An inner class is a nested class that is not explicitly or implicitly declared {{static}}" \[[JLS 2005|AA. Bibliography#JLS 05]\]. Serialization of inner classes (including local and anonymous classes) is error prone. According to the Serialization Specification \[[Sun 2006|AA. Bibliography#Sun 06]\], |
- Serializing an inner classes class declared in a non-static context that contains implicit non-transient references to enclosing class instances results in serialization of its associated outer class instance.
- Synthetic fields generated by Java{{TM}} compilers to implement inner classes are implementation dependent and may vary between compilers; differences in such fields can disrupt compatibility as well as result in conflicting default
serialVersionUIDvalues. The names assigned to local and anonymous inner classes are also implementation dependent and may differ between compilers.
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Related Guidelines
CWE ID -499, "Serializable Class Containing Sensitive Data" |
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