4.0.0 study.buildbuild-toolchain-lab1.0.0 pom platform legacy lib app 21 UTF-8 2.21.7 2026-10-01T00:00:00Z com.fasterxml.jackson.corejackson-databind${jackson.version} org.apache.maven.pluginsmaven-compiler-plugin3.13.0 org.apache.maven.pluginsmaven-surefire-plugin3.5.6 org.apache.maven.pluginsmaven-jar-plugin3.4.2 ${project.build.outputTimestamp} org.apache.maven.pluginsmaven-enforcer-plugin3.6.3