JDK-4838379 : Need custom support for serializing enum types
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.io:serialization
  • Affected Version: 5.0
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: solaris_8
  • CPU: generic
  • Submitted: 2003-03-27
  • Updated: 2017-05-16
  • Resolved: 2003-09-05
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5.0 tigerFixed
Description
Enumerated types require special serialization support.

Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: tiger FIXED IN: tiger INTEGRATED IN: tiger tiger-b19
14-06-2004

EVALUATION Strictly speaking we don't "need" custom support for serializing enum types: the compiler could simply emit an appropriate readObject method. This approach, however, has several disadvantages: (1) It would place a fair amount of unnecessary code in the class files. (2) The details will have to be spelled out to ensure consistency among compilers. (3) The resulting serialized form would be inefficient in space and time; it would contain a meaningless serial version UID and would construct and discard a "garbage object" each time an enum constant was deserialized. Therefore, it seems reasonable to add "first class" serialization support for enum types, as was done for strings and arrays. ###@###.### 2003-03-31
31-03-2003