Maven - Use JDK 7 to Compile for JVM 5

Question

I\'ve been trying to get this to work for a while now but no luck yet.

I want to run with JAVA_HOME pointing to JDK7 but I want to compile a project for

Answer 1

This answer is targeted at the title of the question, not to the specific problems of the question in detail.

I ended up using this solution in my project, which allows me to use the custom bootstrap classpath selectively, by activating a maven profile. I strongly recommend using a profile for this, because otherwise it makes the build fail for anyone that does not have the environment variable set (very bad, especially for an open source project). I only activate this profile in my IDE for the "Clean & Build" action.

    
        compileWithJava5
        
        
            ${env.JAVA5_HOME}
            ${java.5.home}/jre/lib
            ${java.5.libs}/rt.jar${path.separator}${java.5.libs}/jce.jar
        
        
            
                
                    org.apache.maven.plugins
                    maven-compiler-plugin
                    
                        1.5
                        1.5
                        
                            ${java.5.bootclasspath}