As mentioned in my previous posting on Unified Logging (UL), messages will be associated with both a level and a tag set. The levels are trace, debug, info, warning, and error. Tags can be listed by running java -Xlog:help. The output from JDK 17 is listed here. add, age, alloc, annotation, arguments, attach, barrier, biasedlocking, blocks, bot, breakpoint, bytecode, cds, census, class, classhisto, cleanup, codecache, compaction, compilation, condy, constantpool, constraints, container, coops...
