in src/main/java/org/apache/sling/discovery/oak/TopologyWebConsolePlugin.java [750:765]
private synchronized void addEventLog(final Type type, final String info) {
final String logEntry = getCurrentDateFormatted() + ": " + type + ". " + info;
if (type == Type.PROPERTIES_CHANGED) {
propertyChangeLog.add(logEntry);
while (propertyChangeLog.size() > 12) {
propertyChangeLog.remove(0);
}
} else {
topologyLog.add(logEntry);
while (topologyLog.size() > 12) {
topologyLog.remove(0);
}
}
}