fixed exception I was catching

Author: ldetmer

auth/src/test/java/com/google/cloud/auth/samples/AuthExampleIT.java

@@ -22,6 +22,7 @@
 import com.google.api.apikeys.v2.Key;
 import com.google.cloud.ServiceOptions;
 import io.grpc.StatusRuntimeException;
+import com.google.api.gax.rpc.InvalidArgumentException;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.PrintStream;
@@ -91,12 +92,14 @@ static String authenticateUsingApiKeyWithRetry(String apiKey) throws IOException
     for (int i = 0; i < retries; i++) {
       try {
         return ApiKeyAuthExample.authenticateUsingApiKey(apiKey);
-      } catch (StatusRuntimeException e) {
+      } catch (StatusRuntimeException | InvalidArgumentException e ) {
         if (e.getMessage().contains("API key expired")) {
           System.out.println("API key not yet active, retrying...");
           try {
             Thread.sleep(delay);
-          } catch (InterruptedException ignored) { }
+          } catch (InterruptedException ignored) {
+            // ignore iterrupted exception and retry test
+          }
         } else {
           throw e;
         }