in activemq-kahadb-exporter/src/main/java/org/apache/activemq/cli/artemis/schema/ArtemisJournalMarshaller.java [169:176]
private String indent(int depth) {
depth *= 3; // level of indentation
char[] output = new char[depth];
while (depth-- > 0) {
output[depth] = INDENT_CHAR;
}
return new String(output);
}