Uwe Schindler created TIKA-1705:
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Summary: Update ASM dependency to 5.0.4
Key: TIKA-1705
URL: https://issues.apache.org/jira/browse/TIKA-1705
Project: Tika
Issue Type: Task
Affects Versions: 1.7
Reporter: Uwe Schindler
Currently the Class file parser uses ASM 4.1. This older version cannot read
Java 8 / Java 9 class files (fails with Exception).
The upgrade to ASM 5.0.4 is very simple, just Maven dependency change. The code
change is only to update the visitor version, so it gets new Java 8 features
like lambdas reported, but this is not really required, but should be done for
full support.
FYI, in LUCENE-6729 we want to upgrade the Lucene Expressions module to ASM 5,
too.
You can hot-swap ASM 4.1 with ASM 5.0.4 without recompilation (so we have no
problem with Lucene using a newer version). Since ASM 4.x the updates are more
easy (no visitor interfaces anymore, instead abstract classes), so it does not
break if you just replace the JAR file. So just see this as a recommendatation,
not urgent! Solr/Lucene will also work without this patch (it just replaces the
shipped ASM by newer version in our packaging).
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