Error when starting Liferay 7 (liferay-portal-7.0-ce-ga1): PWC6345: There is an error in invoking javac.A full JDK (not just JRE) is required

Question

I am getting the following error when starting Liferay (liferay-portal-7.0-ce-ga1):

org.apache.jasper.JasperException: PWC6345: There is an error in

Answer 1

In your environment both JRE_HOME and JAVA_HOME are set. In this case Tomcat will prefer the JRE_HOME over the JAVA_HOME. JRE_HOME should point to a JRE while JAVA_HOME should point to a JDK. You could just delete the JRE_HOME environment variable and Tomcat would automatically switch to JAVA_HOME so the isseue would be solved. If you want to keep the JRE_HOME in Windows you can change the setenv.bat by adding the following line as a first line.

set "JRE_HOME=%JAVA_HOME%"

This change will tell Tomcat that the JRE_HOME should be considered equal to JAVA_HOME and will not change your environmental variables.