public class JavaTest {
  public static void main(String[] args){
    System.out.println("Hello World!");
  }
}

public class JavaTest {
  public JavaTest() {
  }

  public static void main(String[] args) {
    System.out.println("Hello World!");
  }
}

GroovyTest.groovy
class GroovyTest {
  static void main(args){
    println "Hello World!";
  }
}

import groovy.lang.GroovyObject;
import groovy.lang.MetaClass;
import org.codehaus.groovy.runtime.callsite.CallSite;

public class GroovyTest implements GroovyObject {
  public GroovyTest() {
    CallSite[] var1 = $getCallSiteArray();
    MetaClass var2 = this.$getStaticMetaClass();
    this.metaClass = var2;
  }

  public static void main(String... args) {
    CallSite[] var1 = $getCallSiteArray();
    var1[0].callStatic(GroovyTest.class, "Hello World!");
  }
}

import groovy.lang.Binding;
import groovy.lang.Script;
import org.codehaus.groovy.runtime.InvokerHelper;
import org.codehaus.groovy.runtime.callsite.CallSite;

public class GroovyTest extends Script {
  public GroovyTest() {
    CallSite[] var1 = $getCallSiteArray();
  }

  public GroovyTest(Binding context) {
    CallSite[] var2 = $getCallSiteArray();
    super(context);
  }

  public static void main(String... args) {
    CallSite[] var1 = $getCallSiteArray();
    var1[0].call(InvokerHelper.class, GroovyTest.class, args);
  }

  public Object run() {
    CallSite[] var1 = $getCallSiteArray();
    return var1[1].callCurrent(this, "Hello World");
  }
}