Is there a way to use maven property in Java class during compilation

Question

I just want to use maven placeholder in my Java class at compile time in order to reduce duplication.

Something like that:

pom.xml

Answer 1

The simplest way I know of doing that is to use Templating Maven Plugin.

Add plugin declaration to your pom:

    org.codehaus.mojo
    templating-maven-plugin
    1.0.0
    
        
            filter-src
            
                filter-sources
                filter-test-sources
            
        
    

If you're filtering main sources:

• Create folder src/main/java-templates
• Move the source files you want to be filtered to that folder. Reproduce package tree structure, as if you were in src/main.

If you're filtering tests sources too:

• Create folder src/test/java-templates
• Move the source files you want to be filtered to that folder. Reproduce package tree structure, as if you were in src/test.

Assuming that your sources contain valid placeholders like:

package some.company;

public class SomeVersion {

    public static String getVersion() {
        return "${project.version}"
    }

}

Now when you compile or test your project, those placeholders should be already valued.

Hope it helps.