add throws

src/test/java/gov/usgs/earthquake/nshmp/model/GenerateWebActual.java

 package gov.usgs.earthquake.nshmp.model;
 
+import java.io.IOException;
 import java.util.Optional;
+import java.util.concurrent.ExecutionException;
 
 import gov.usgs.earthquake.nshmp.model.NshmTestUtils.Nshm;
 import gov.usgs.earthquake.nshmp.www.Application;
@@ -9,7 +11,8 @@ import io.micronaut.runtime.Micronaut;
 
 public class GenerateWebActual {
 
-  public static void main(String[] args) {
+  public static void main(String[] args)
+      throws InterruptedException, ExecutionException, IOException {
     Nshm nshm = NshmTests.NSHMS.get(System.getProperty("NSHM"));
     var context = Micronaut
         .build("--model=" + nshm.modelPath())