Change ObjectArrayTypeInfo.getInfoFor to use componentInfo.isTupleType()

This is necessary because the previous test didn't work for Scala tuples.

flink-java/src/main/java/org/apache/flink/api/java/typeutils/ObjectArrayTypeInfo.java

@@ -116,7 +116,7 @@ public class ObjectArrayTypeInfo<T, C> extends TypeInformation<T> {
 			return new ObjectArrayTypeInfo<T, C>(type, genericArray.getGenericComponentType(), componentInfo);
 		}
 		// for tuples without generics (e.g. generated by the TypeInformation parser)
-		else if (type instanceof Class<?> && ((Class<?>) type).isArray() && Tuple.class.isAssignableFrom(((Class<?>) type).getComponentType())
+		else if (type instanceof Class<?> && ((Class<?>) type).isArray() && componentInfo.isTupleType()
 				&& type != Tuple.class) {
 			return new ObjectArrayTypeInfo<T, C>(type, ((Class<?>) type).getComponentType(), componentInfo);
 		}