When starting Tomcat it looks like two different JAVA_HOME paths are being concatenated together

When I try to start tomcat it doesn't work.

When I look in tomcat/logs/catalina.out I get the line:

• ./catalina.sh: 454: /usr/bin/java/bin/java: not found

This makes sense since there is no /usr/bin/java/bin/java but there is a /usr/bin/java

It looks like Catalina is adding an extra portion onto the JAVA_HOME variable. When I do echo $JAVA_HOME I get /usr/bin/java

Does anyone know how I can solve this.