clean up static Map/Set/etc to avoid races and leaks #198
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... as far as possible - the easy cases.
The "javax.activation" package was removed from JDK9, and is now maintained by Eclipse, and is surely excessive for this functionality. The fallback code here that is using a static map is mainly for file types one would expect to be common on a 1990s Solaris workstation. It turns out that there is a URLConnection.guessContentTypeFromName() since forever so just use that.
mUrlToPrefix looks safe currently, might get inited twice but not a problem.
... and mAttributeTypes.
svanteschubert
approved these changes
Dec 19, 2022
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Hopefully the OdfNamespace one won't grow to any measurable size, otherwise will have to be moved somewhere non-static.