4.0.0 core-java-streams-maps core-java-streams-maps jar com.baeldung.core-java-modules core-java-modules 0.0.1-SNAPSHOT log4j log4j ${log4j.version} org.junit junit-bom ${junit-jupiter.version} pom import org.assertj assertj-core 3.23.1 test core-java-streams-maps src/main true org.apache.maven.plugins maven-compiler-plugin ${maven-compiler-plugin.version} ${maven.compiler.source} ${maven.compiler.target} -parameters 1.8 1.8