Files
openGauss-connector-jdbc/buildtools

Download the MAVEN from https://mirror.bit.edu.cn/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz 
The version shoud be 3.6.3.
Download the java x86-64 from https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u222-b10/OpenJDK8U-jdk_x64_linux_hotspot_8u222b10.tar.gz 
The version should be 1.8.
Download the java aarch64 from https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u222-b10/OpenJDK8U-jdk_aarch64_linux_hotspot_8u222b10.tar.gz
The version should be 1.8.