Setting Java Environment Variables for Talend

Question

I'm loading Talend on my mac and I'm trying to set the Java environment variables.

Talend says to set the path based on this:

export JAVA_HOME=/usr/lib/jvm/jre1.8.0_65    
export PATH=$JAVA_HOME/bin:$PATH

I have several issues:

1. It says I should base the 1st export on where my Java is installed which is /usr/lib/JavaVirtualMachine/jdk1.8.0_144 . I'm assuming path should be exact - so no "jvm"? Also assume my jdk is correct since that is what I have.

2. When i set the variable how do I know it takes? I've played with it and then I use printenv but I never see what I enter.

3. To set this perm (when I know the path) do I open terminal and enter it like this?

   export JAVA_HOME=/usr/lib/jvm/jre1.8.0_65 ~/ .profile

Thanks - New to this and trying to do a little development

Answer 1

You don't need an exact path.

Let java tell you where is it running from

export JAVA_HOME=`/usr/libexec/java_home`

how do I know it takes?

You need to first source ~/.profile if you added it there, then you can echo $JAVA_HOME