Mac Echo $Java_Home Return Blank
I Don't Know Why Echo $Java_Home Return Blank Abdelmajids-iMac: ~ Majid$ Vi. Profile Export Path=/Usr/Local/Bin: (. ..) [[ -S "$Home/. Rvm/Scripts/Rvm" ]] &&...
I don't know why echo $JAVA_HOME return blank
Abdelmajids-iMac:~ majid$ vi .profile
export PATH=/usr/local/bin:(...)
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load
RVM into a shell session *as a function*
export JAVA_HOME=$(/usr/libexec/java_home)
~
~
Abdelmajids-iMac:~ majid$ /usr/libexec/java_home
/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home
Abdelmajids-iMac:~ majid$ vi .bash_profile
Abdelmajids-iMac:~ majid$ source .bash_profile
-bash: .bash_profile: line 1: syntax error near unexpected token `('
-bash: .bash_profile: line 1: `export PATH=/usr/local/bin:(...)'
Abdelmajids-iMac:~ majid$ echo $JAVA_HOME
Abdelmajids-iMac:~ majid$
4 Answers
Statement export JAVA_HOME=$(/usr/libexec/java_home) seems correct; bash would have evaluated the information within $() and returned a blank if .
Looks like a syntax error caused the error not to execute, leaving JAVA_HOME empty.
The usage of $() is discussed in this link. Difference between ${} and $() in Bash.
$(str) where str should be a command. In your case, $(/usr/libexec/java_home) will return nothing. Just use
export JAVA_HOME=/usr/libexec/java_home
I have just run into this issue after installing Amazon Corretto jdk15. But, in my case, I just closed and reopened the terminal and everything worked, that is, by running
echo $JAVA_HOME
It prints out to the console:
/Users/username/.sdkman/candidates/java/current.
Create a .zshrc file on your terminal
touch ~/.zshrcnow click go -> home -> press shift+command+.
You can now see the hidden files. Open .zshrc file and type:
export JAVA_HOME=$(/usr/libexec/java_home) export PATH=/opt/homebrew/bin:$PATH
David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.
