private void removeFromEndpointMap(PooledConnection connection) {
      removeFromEndpointMap(connection.getEndpoint(), connection);
    }
An existing connections lifetime has expired. We only want to create one replacement connection
at a time so this should block until this connection replaces an existing one. Note that if
a connection is created here it must not count against the pool max and its idle time and
lifetime must not begin until it actually replaces the existing one.

@param currentServer the server the candidate connection is connected to
@return true if caller should recheck for expired lifetimes; false if a background check was
        scheduled or no expirations are possible.
geode-core/src/main/java/org/apache/geode/cache/client/internal/pooling/ConnectionManagerImpl.java