can't use system environment variable?

[1013461195]

execute mvnd clean mvnd -version,tip me 'Could not get a real path from path $JAVA_HOME'

[gnodet]

Environment properties are supported using an env. prefix, and with the correct prefix ${ and suffix }, so you may try with

java.home=${env.JAVA_HOME}

[1013461195]

thanks, but still can't read system env,
default read ${pwd}/bin/java?

[1013461195]

my from code source 'org.mvndaemon.mvnd.client.DaemonParameters.javaHome' find use env value is '${JAVA_HOME}'. but 'org.mvndaemon.mvnd.client.DaemonParameters.loadProperties' to first insert 'env.', last result '${JAVA_HOME}' = env.${JAVA_HOME}.

[shenjianeng]

yeah， can't read system env.

but you can use that：

// org.mvndaemon.mvnd.client.DaemonParameters#javaHome
public Path javaHome() {
        final Path result = value(Environment.JAVA_HOME)
                .orLocalProperty(provider, suppliedPropertiesPath())
                .orLocalProperty(provider, localPropertiesPath())
                .orLocalProperty(provider, userPropertiesPath())
                .orLocalProperty(provider, globalPropertiesPath())
                .orSystemProperty()
                .orEnvironmentVariable()
                .or(new ValueSource(
                        description -> description.append("java command"), DaemonParameters::javaHomeFromPath))
                .orFail()
                .cache(provider)
                .asPath();
        try {
            return result.toRealPath();
        } catch (IOException e) {
            throw new RuntimeException("Could not get a real path from path " + result);
        }
    }

remove config file ，

use SystemProperty : mvnd clean deploy -Dmaven.test.skip=true -Ptest -Djava.home=/opt/jdk-11.0.17+8/