Why go with R6 annotation when you have improvised R7 annotation.
OSGI R7 annotation comes with significant feature and capabilities and is available to use with AEM from AEM 6.4 onwards.
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By Feike Visser
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Good to see you sharing the content with the Community. Please keep doing this.
Unfortunately the link is broken (404). I wasn't able to find Feikes Articles in any other location. The best alternative content/introduction on OSGI R7 annotations I could find is this one: