Failed to execute "mvn site"

[dzc34]

Bug report

Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.7.1:site (default-site) on project contrast-finder: Error generating maven-javadoc-plugin:3.1.0:aggregate report: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set.

To Reproduce

cd ~
mv .m2 .m2_backup
git clone ...
cd Contrast-Finder

mvn site

# or
 mvn -Preporting site 

but, it's works with the folloling command lines:

 mvn site -Dmaven.javadoc.skip=true

# or
 mvn -Preporting site -Dmaven.javadoc.skip=true

Possible Solution

?

Your Environment

mvn --version
	Apache Maven 3.6.0
	Maven home: /usr/share/maven
	Java version: 11.0.4, vendor: Ubuntu, runtime: /usr/lib/jvm/java-11-openjdk-amd64

java -version
	openjdk version "11.0.4" 2019-07-16