test: correct method signature in varargs tests

Author: javier-godoy

src/test/java/com/flowingcode/vaadin/jsonmigration/ClientCallable_JsonObjectVarargs__V.java

@@ -30,7 +30,7 @@
 public class ClientCallable_JsonObjectVarargs__V extends BaseClientCallable {
 
   @ClientCallable
-  public void test(JsonObject[] arg) {
+  public void test(JsonObject... arg) {
     assertThat(arg, notNullValue());
     assertThat(arg, not(emptyArray()));
     assertThat(arg, Matchers.instanceOf(JsonObject[].class));

src/test/java/com/flowingcode/vaadin/jsonmigration/LegacyClientCallable_JsonObjectVarargs__V.java

@@ -29,7 +29,7 @@
 public class LegacyClientCallable_JsonObjectVarargs__V extends BaseClientCallable {
 
   @LegacyClientCallable
-  public void test(JsonObject[] arg) {
+  public void test(JsonObject... arg) {
     assertThat(arg, notNullValue());
     assertThat(arg, not(emptyArray()));
     assertThat(arg, Matchers.instanceOf(JsonObject[].class));