in log4j2-ecs-layout/src/main/java/co/elastic/logging/log4j2/ObjectMessageJacksonSerializer.java [77:84]
public void formatTo(StringBuilder buffer, ObjectMessage objectMessage) {
try {
objectMapper.writeValue(new StringBuilderWriter(buffer), objectMessage.getParameter());
} catch (IOException e) {
StatusLogger.getLogger().catching(e);
objectMessage.formatTo(buffer);
}
}