echo $JAVA_HOME returns blank in MacOS catalina despite having set it properly in zshrc

I a using the latest MacOS catalina(10.15.4) and using .zshrc for my profile as latest version of mac deprecated the bash shell, This is the follow-up question of my previous unanswered question on not able to change the default java version to 1.8 using jenv.

When I was trying to debug more found my echo $JAVA_HOME always returns blank, despite having set it in following manner.

export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)

And

export JAVA_HOME=/Library/Java/JavaVirtualMachines/amazon-corretto-8.jdk/Contents/Home

Note i've sourced my .zshrc file after the change but still no luck, although when I set on the terminal then it print the proper value but its only on that console(as expected).

Adding the content of my ~/.zshrc

export JAVA_HOME=/Library/Java/JavaVirtualMachines/amazon-corretto-8.jdk/Contents/Home
#export JAVA11_HOME=/Library/Java/JavaVirtualMachines/amazon-corretto-11.jdk/Contents/Home
export PATH="$HOME/.jenv/bin:$PATH"
eval "$(jenv init -)"
#export JAVA14_HOME=$(/usr/libexec/java_home -v14)
#export RUNTIME_JAVA_HOME=$(/usr/libexec/java_home -v11)
export PATH=$JAVA_HOME/bin:$PATH
#export PATH="/Users/java-dev/Library/Python/3.7/bin/:$PATH"
export PATH=/usr/local/bin:$PATH
export PATH=/usr/bin:$PATH
alias sr='source ~/.zshrc'
alias rt='cd /Users/java-dev/rt'
alias dev='cd /Users/java-dev/development'
alias code='cd /Users/java-dev/code'

The file name is changed in latest catalina OS . you need to create a file named .zprofile (same place where you have created .bash_profile file. This needs to be done because .bash_profile is now .zprofile) and place your export command over there.

If it already exists, please append your export command in the file like below.

export PATH=$your_path$:$PATH

export JAVA_HOME=$your_path$

export M2_HOME=$your_path$

check this <https://stackoverflow.com/questions/56784894/macos-catalina-10-15beta-why-is-bash-profile-not-sourced-by-my-shell>