4.0.0 cn.lastwhisper java-basic pom 1.0-SNAPSHOT concurrent jvm jdk5 design-pattern interview jdk8 jdk9 jdk11 jdk12 jdk13 org.projectlombok lombok 1.18.10 junit junit 4.12 mysql mysql-connector-java 5.1.38 org.apache.maven.plugins maven-compiler-plugin 1.8 1.8