Avoid warnings

Author: javinp

src/main/java/org/bigml/binding/LocalEnsemble.java

@@ -832,8 +832,8 @@ private HashMap<String, Object> predictOperating(JSONObject inputData,
         String positiveClass = (String) operating[2];
 
         if (!Arrays.asList(OPERATING_POINT_KINDS).contains(kind)) {
-            throw new IllegalArgumentException(String.format(
-                                                             "Allowed operating kinds are %", OPERATING_POINT_KINDS));
+            throw new IllegalArgumentException(
+                String.format("Allowed operating kinds are %", (Object[]) OPERATING_POINT_KINDS));
         }
 
         JSONArray predictions = null;
@@ -896,8 +896,8 @@ private HashMap<String, Object> predictOperatingKind(JSONObject inputData,
         }
 
         if (!Arrays.asList(OPERATING_POINT_KINDS).contains(kind)) {
-            throw new IllegalArgumentException(String.format(
-                                                             "Allowed operating kinds are %", OPERATING_POINT_KINDS));
+            throw new IllegalArgumentException(
+                String.format("Allowed operating kinds are %", (Object[]) OPERATING_POINT_KINDS));
         }
 
         JSONArray predictions = null;

src/main/java/org/bigml/binding/LocalFusion.java

@@ -116,7 +116,7 @@ public LocalFusion(
 					String type = model.split("/")[0];
 					if (!Arrays.asList(LOCAL_SUPERVISED).contains(type)) {
 						throw new IllegalArgumentException(
-								String.format("The resource %s has not an allowed supervised model type.", OPERATING_POINT_KINDS));
+							String.format("The resource %s has not an allowed supervised model type.", (Object[]) OPERATING_POINT_KINDS));
 					}
 		    	}
 
@@ -387,7 +387,7 @@ private HashMap<String, Object> predictOperating(
 
 		if (!Arrays.asList(OPERATING_POINT_KINDS).contains(kind)) {
 			throw new IllegalArgumentException(
-					String.format("Allowed operating kinds are %", OPERATING_POINT_KINDS));
+					String.format("Allowed operating kinds are %", (Object[]) OPERATING_POINT_KINDS));
 		}
 
 		JSONArray predictions = predictProbability(

src/main/java/org/bigml/binding/LocalPredictiveModel.java

@@ -944,7 +944,7 @@ private Prediction predictOperatingKind(
    		String kind = operatingKind.toLowerCase();
    		if (!Arrays.asList(OPERATING_POINT_KINDS).contains(kind)) {
    			throw new IllegalArgumentException(
-   					String.format("Allowed operating kinds are %", OPERATING_POINT_KINDS));
+   					String.format("Allowed operating kinds are %", (Object[]) OPERATING_POINT_KINDS));
    		}
 
    		JSONArray predictions = null;