[ http://issues.apache.org/jira/browse/XALANJ-1678?page=all ]
Brian Minchau updated XALANJ-1678:
----------------------------------
Fix Version: 2.7
> Xalan sample program XSLTProcessorApplet breaks de-serialization across
> releases
> --------------------------------------------------------------------------------
>
> Key: XALANJ-1678
> URL: http://issues.apache.org/jira/browse/XALANJ-1678
> Project: XalanJ2
> Type: Bug
> Components: Xalan
> Versions: CurrentCVS
> Environment: Operating System: Other
> Platform: Other
> Reporter: Brian Minchau
> Assignee: Xalan Developers Mailing List
> Fix For: 2.7
> Attachments: XLSTProcessorApplet.patch.txt, XLSTProcessorApplet.patch.txt
>
> If you create an org.apache.xalan.client.XSLTProcessorApplet object and
> serialize it with an earlier releases of Xalan, e.g. :
> . . .
> obj = new XSLTProcessorApplet();
> store(obj, "D:/temp/serialized.tmp");
>
> public static void store(Object obj, String filename) {
> try {
> FileOutputStream out = new FileOutputStream(filename);
> ObjectOutputStream s = new ObjectOutputStream(out);
>
> s.writeObject(obj);
> s.flush();
> s.close();
> }
> catch (Exception e) {
> e.printStackTrace();
> }
> }
> and later on you read it back in with the latest Xalan
> obj = load("D:/temp/serialized.tmp");
> . . .
> public static Object load(String filename)
> {
> Object obj = null;
> FileInputStream in;
> try {
> in = new FileInputStream(filename);
> ObjectInputStream sin = new ObjectInputStream(in);
> obj = sin.readObject();
> }
> catch (Exception e) {
> e.printStackTrace();
> }
> return obj;
> }
> It will fail because of different serialVersionUID values.
> This value is a "long" that is a hash of methods (except private) and various
> fields (including private!). Something has changed in XSLTProcessorApplet and
> we can't de-serialize an old object.
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