How to change tomcat compiler

Question

I\'m trying to use the new Java 7 switch on strings feature.

But Tomcat is not cooperating.

I\'ve made sure that tomcat is running under java 7 but it seems

Answer 1

We are running Tomcat 6 and had the same problem. Our solution was to:

• replace tomcat/lib/ecj-3.3.1.jar with ecj-3.7.2.jar (can be taken from the latest Tomcat 7 release);

• add this to tomcat/conf/web.xml

  ...
  
    jsp
    org.apache.jasper.servlet.JspServlet
    
        fork
        false
    
    
        xpoweredBy
        false
    
                                        
        compilerSourceVM
        1.7
    
    
        compilerTargetVM
        1.7
                                       
    3
  
  

The simpler alternative is, of course, to install Tomcat 7 but this might not be an option for everyone.