Amit Mondal created FELIX-6565:
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Summary: Make HTTP Servlet dependency optional in HealthCheck core
bundle
Key: FELIX-6565
URL: https://issues.apache.org/jira/browse/FELIX-6565
Project: Felix
Issue Type: Improvement
Components: Health Checks
Reporter: Amit Mondal
Currently, the Felix HealthCheck core bundle mandatorily imports
_*javax.servlet*_ package which is used by {_}*HealthCheckExecutorServlet*{_}.
In our current system, we don't use HTTP at all, hence, _*javax.servlet*_ is
not available in the runtime. Hence, the health checks don't work as it
mandatorily requires _*javax.servlet*_ package dependency. Since,
_*HealthCheckExecutorServlet*_ is not a core component for the health checks,
we can consider the following options:
# Provide a separate bundle with HTTP dependency (invasive approach)
# Make _*javax.servlet*_ an optional package for HealthCheck core and
conditionally enable _*HealthCheckExecutorServlet*_ component if
_*javax.servlet*_ is wired to the HealthCheck core bundle (similar approach we
did for Quartz to check the availability of Quartz in runtime)
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