There is a decent little guide on this page, check out the section on
javac and its usage
https://www.ntu.edu.sg/home/ehchua/programming/howto/JDK_HowTo.html#Set-JAVA_HOME
Robert Dinse wrote:
Ok, I deleted Java 11 and installed jdk-8, however tomcat8 will
now not
start with the error:
No JDK or JRE found - Please set the JAVA_HOME variable or install
the default-jdk package
I have JAVA_HOME set but apparently when tomcat8 is started by
systemd
it does not see it.
If I install default-jdk package, it re-installs jdk11 and sets
it as
the default. How do I set the default to jdk8?
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