[Jikesrvm-core] [ jikesrvm-Bugs-1549924 ] serialVersionUID not ignored for arrays

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Bugs item #1549924, was opened at 2006-08-31 15:21
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Category: libraries
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Elias Naur (elias_naur)
Assigned to: Nobody/Anonymous (nobody)
Summary: serialVersionUID not ignored for arrays

Initial Comment:
The attached test case, run against Jikes RVM HEAD 
will crash with a serialization exception:

Exception in thread "main": 
java.lang.RuntimeException: 
java.io.InvalidClassException: class 
[Ljava.lang.Object;: Local class not compatible: 
stream serialVersionUID=-8012369246846506644, local 
serialVersionUID=7645742402559474066
        at Read.main(Read.java:10)
Caused by: java.io.InvalidClassException: class 
[Ljava.lang.Object;: Local class not compatible: 
stream serialVersionUID=-8012369246846506644, local 
serialVersionUID=7645742402559474066
        at 
java.io.ObjectStreamClass.setClass(ObjectStreamClass.java:318)
        at 
java.io.ObjectInputStream.readClassDescriptor(ObjectInputStream.java:570)
        at 
java.io.ObjectInputStream.parseContent(ObjectInputStream.java:265)
        at 
java.io.ObjectInputStream.readObject(ObjectInputStream.java:142)
        at 
java.io.ObjectInputStream.parseContent(ObjectInputStream.java:294)
        at 
java.io.ObjectInputStream.readObject(ObjectInputStream.java:142)
        at Read.main(Read.java:7)

According to the Object Serialization Specification 
(clarified May, 12, 2005):

http://java.sun.com/javase/6/docs/platform/serialization/spec/class.html

"Array classes cannot declare an explicit 
serialVersionUID, so they always have the default 
computed value, but the requirement for matching 
serialVersionUID values is waived for array classes."


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