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simon steiner commented on FOP-2733: ------------------------------------ Added http://svn.apache.org/viewvc/xmlgraphics/fop/branches/Temp_Avalon/ > [PATCH] Drop dependency on Avalon-Framework > ------------------------------------------- > > Key: FOP-2733 > URL: https://issues.apache.org/jira/browse/FOP-2733 > Project: FOP > Issue Type: Bug > Reporter: Chris West > Assignee: simon steiner > Priority: Major > Attachments: fop-no-avalon-1.patch > > > FOP depends on avalon-framework, an old Apache project officially abandoned > in 2004. Nearly nobody uses avalon-framework anymore, and I'd like to see it > laid to rest. > avalon-framework no-longer compiles with Java 9. Fixing it yet again seems > like insanity. This isn't a problem for Maven users, who can keep using the > old binary (and suffer slow verification on startup), but is a problem for > distros like Debian, who want to be able to build everything. > Others have asked about this before, e.g. > http://apache-fop.1065347.n5.nabble.com/FOP-and-Avalon-td44302.html > I propose removing the dependency on Avalon entirely, fixing the couple of > cases where it breaks, and inlining the two packages that are actually still > used.. I have created a patch here: > https://github.com/apache/fop/compare/trunk...FauxFaux:trunk , also attached. > It's not great to read in patch form, so here's a summary of the changes: > * Remove dependence on avalon-framework from Maven, classpath variables etc. > * Add Avalon's configuration package as main:org.apache.fop.configuration > directly, and keep using it essentially unmodified. > * Add Avalon's logging framework as test:org.apache.fop.threading.logger. > This is only used in test code, in the threaded test code runner. It is > essentially source compatible with log4j/commons-logging, so could probably > be deleted. > * Change `CIDFontType` from a Avalon enum to a Java5 `enum`. This appears to > be source, but not binary, compatible. > * Remove some use of lifecycle management interfaces in test code, which are > not doing anything. > * Change some exception printing in test code to print the full exception > (using the Java api), instead of a truncated exception. The output is not > asserted upon, just sent to stderr. > * Stop using Cascading*Exception in tests, and for ConfigurationException. I > doubt anyone will notice, as it offers no real functionality. > That's it! > The most controversial thing here is probably adding the configuration > package, and the extra lines of code it drags along with it. I am happy to > give it a bit of a polish; make significant changes to fop to remove all the > unused interfaces / abstract classes (which are just waste); put some > generics and formatting in, etc.? -- This message was sent by Atlassian JIRA (v7.6.3#76005)