hugegraph-example/src/main/resources/log4j2.xml
hugegraph-test/src/main/resources/log4j2.xml

hugegraph-example/src/main/java/org/apache/hugegraph/example/Example1.java
hugegraph-test/src/main/java/org/apache/hugegraph/core/VertexCoreTest.java

hugegraph-example/src/main/java/org/apache/hugegraph/example/Example2.java
hugegraph-test/src/main/java/org/apache/hugegraph/core/VertexCoreTest.java