The following modules were newly included in 3.15 (compared to 3.8) but seem suspicious
org.openjdk.jmh:jmh-parent (and other JMH artifacts) - 1.37.0.redhat-00001 — This is microbenchmark harness.
io.micrometer:micrometer-java11
org.apache.commons:commons-math3
org.apache.kafka:kafka-server