code: private AbstractBuild getBuildForDeprecatedMethods() {
          Executor e = Executor.currentExecutor();
          if(e!=null) {
              Executable exe = e.getCurrentExecutable();
              if (exe instanceof AbstractBuild) {
                  AbstractBuild b = (AbstractBuild) exe;
                  if(b.getProject()==this)
                      return b;
              }
          }
          R lb = getLastBuild();
          if(lb!=null)    return lb;
          return null;
      }
docs: Various deprecated methods in this class all need the 'current' build.  This method returns
  the build suitable for that purpose.
  
  @return An AbstractBuild for deprecated methods to use.