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To update the Java 4 distribution, we need to
- Copy (export) the "backport" folder that is under SVN to struts-2.0.x/j4
- If needed, update the translator JARs and translate batch file
- If needed, update the translate batch file as to the Struts version
- run the translate batch file
- update create struts-2.0.x-j4.zip archive
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