org.apache.logging.log4j.util.LoaderUtil.getClassLoaders() when using
Bootstrap classloader.

This closes #192

This reverts commit ac0bf4bb.

accidentally loading or re-loading Log4j configurations.

programmatically.

in tests for example.

This closes #190

This closes #189

Implement Clearable interface for reusable messages, making it
easier to clear references between usages.

This closes #186

AsyncLoggerContextSelector RingBufferLogEvents were not properly
handled by the jackson layout. Currently the jackson layout
implementation requires Log4jLogEvent instances, so we must
convert all other LogEvent implementations into these.

This closes #187

For non-JNDI, allow comma-separated configuration locations (composite
configuration syntax) for "log4jConfiguration" context parameter.

LOG4J2-2305 - Make java.util.ServiceLoader properly work in OSGi by using the Service Loader Mediator Specification

[LOG4J2-2305] Make java.util.ServiceLoader properly work in OSGi by using the Service Loader Mediator Specification

ReusableObjectMessage would previously retain a reference to
the most recently logged object.