cd ~/workspace
getTemplateForDirectory MODROOT_WS jHelloComp
cd jHelloComp/src
mkdir -p acsws/workshop/HelloComponentImpl
touch acsws/workshop/HelloComponentImpl/HelloComponentImpl.java
cp ../../idlHelloComp/src/acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java.tpl acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java
vim Makefile

//Suggested: import alma.<Module>.<Interface>Impl; //But anything, really
package acsws.workshop.HelloComponentImpl;
  
//Base component implementation, including container services and component lifecycle infrastructure
import alma.acs.component.ComponentImplBase;
  
//Skeleton interface for server implementation
import acsws.workshop.HelloComponentOperations;
 
 
//ClassName usually is <Interface>Impl, but can be anything
public class HelloComponentImpl extends ComponentImplBase implements HelloComponentOperations {
    public HelloComponentImpl() {
    }
    public String printHello() {
        System.out.println("Just printing 'Hello World!'");
        return new String("Hello World!");
    }
}

make all install

vim $ACS_CDB/CDB/MACI/Components/Components.xml

<e Name="HelloWorldJava" Code="acsws.workshop.HelloComponentImpl.HelloComponentComponentHelper"
                         Type="IDL:acsws/workshop/HelloComponent:1.0"
                         Container="frodoContainer" ImplLang="java" />

cp ~/workspace/idlHelloComp/src/acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java.tpl ~/workspace/jHelloComp/src/acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java

# in one terminal
acsStop
acsStart
# in a different terminal
acsStartContainer -java frodoContainer
# in a different terminal
python client.py

...
Hello World!
...