| Log Message: |
Make POIXMLDocument implement Closeable as it holds an OCPPackage with open resources and thus should be closed after usage. Until now only XSSFWorkbook did this, but it makes sense for all derived classes.
Also make close() in POIXMLDocument public to not have to re-implement it in all sub-classes.
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poi/trunk/src/ooxml/java/org/apache/poi/POIXMLDocument.java