Maven

JDK 8 1.8 uxxx -> maven 3.2.5

https://downloads.apache.org/maven/maven-3/3.2.5/binaries/apache-maven-3.2.5-bin.zip

export M2_HOME=/home/wwww/apache-maven-3.5.4

export M2=$M2_HOME/bin

export MAVEN_OPTS=-Xms256m -Xmx512m

export PATH=$M2:$PATH

JDK 14 -> maven 3.6.x