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Error: The type must implement the inherited abstract method

843789Mar 5 2010 — edited Mar 5 2010
I am getting the error, The type must implement the inherited abstract method, with the method runProcess() in the class ProcessRunner. Why am I getting the error? How can I get rid of the error?

Any help would be much appreciated.
public abstract class Calculation<T>
  implements Validation<T, Void>{
  public final Void calculate(T amount){
    return null;

  public abstract void execute(T paramT);

public class ProcessRunner {
	private void runProcess(List<String> process) {
	    ListMaker.with(process).forEach(new Action() 
	      public void execute(String from) {
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Post Details
Locked on Apr 2 2010
Added on Mar 5 2010