JAVA_HOME should point to a JDK not a JRE

If anyone can help me with this, it would mean a lot as I've seen similarly answered questions for windows but not many or Linux. I am running I am running Linux mint 20.2 (Uma). I have a problem where trying to run my maven project, I get the error

The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE

I have since fully uninstalled java and maven and set up JDK17 and the JAVA_HOME

$ echo $JAVA_HOME
/usr/lib/jvm/jdk-17.0.2

Along with setting the profile

$ grep JAVA_HOME /etc/profile

JAVA_HOME=/usr/lib/jvm/jdk-17.0.2
JRE_HOME=$JAVA_HOME/jre
PATH=$PATH:JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME

And .bashrc

$ grep JAVA_HOME ~/.bashrc

JAVA_HOME=/usr/lib/jvm/jdk-17.0.2
JRE_HOME=$JAVA_HOME/jre
PATH=$PATH:JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME

I also found a

.sh

file in the

/etc/profile.d/

that was redirecting JAVA_HOME to the old JDK and have since deleted it. But even after all of this the problem pressies, I don't know if something is still redirecting JAVA_HOME to the old JDK or I didn't set it up correctly, I also don't know where to look if something is redirecting it or if I have an alias for

since I'm not adept to Linux fully and I haven't used to this system in a while to backtrack my changes. If anyone has any input on how to solve this problem, it would be greatly appreciated. Thank you all in advance.