Paolo Antinori created CAMEL-10282:
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Summary: [Avro] Issue on OSGi due to static cache
Key: CAMEL-10282
URL: https://issues.apache.org/jira/browse/CAMEL-10282
Project: Camel
Issue Type: Bug
Components: camel-avro
Affects Versions: 2.17.3
Reporter: Paolo Antinori
Avro holds a cache of classloaders and other reflection related classes in a
static map here:
https://github.com/apache/avro/blob/master/lang/java/avro/src/main/java/org/apache/avro/specific/SpecificData.java#L52-L57
Keys of that map are `String`s with classname.
The cache is never updated, and this breaks OSGi ability to update a new class
definition, since avro **will keep pointing to the old version**.
This will lead to a situation where, on an OSGi platform, you are exposed to
`ClassCastException` since the rest of the platform might see a different
varsion than the old one cached by avro.
The attached fix is a simple way to entirely bypass this caching behavior with
just public subclasses that turn off just the caching behavior.
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