Moved duplicate constructor code to init method

Author: chrisken

src/main/java/com/networknt/schema/JsonSchema.java

@@ -47,27 +47,25 @@ public class JsonSchema extends BaseJsonValidator {
     JsonSchema(ObjectMapper mapper, String schemaPath, JsonNode schemaNode,
                JsonSchema parent) {
         super(schemaPath, schemaNode, parent, null);
-        this.mapper = mapper;
-
-        validators = new LinkedHashMap<String, JsonValidator>();
-
-        read(schemaNode);
+        this.init(mapper, schemaNode);
     }
 
     JsonSchema(ObjectMapper mapper, String schemaPath, JsonNode schemaNode,
                JsonSchema parent, JsonSchema subSchema) {
         super(schemaPath, schemaNode, parent, null, subSchema);
-        this.mapper = mapper;
-
-        validators = new LinkedHashMap<String, JsonValidator>();
-
-        read(schemaNode);
+        this.init(mapper, schemaNode);
     }
 
     public JsonSchema(ObjectMapper mapper, JsonNode schemaNode, JsonSchema subSchema) {
         this(mapper, "#", schemaNode, null, subSchema);
     }
 
+    private void init(ObjectMapper mapper, JsonNode schemaNode) {
+        this.mapper = mapper;
+        this.validators = new LinkedHashMap<String, JsonValidator>();
+        this.read(schemaNode);
+    }
+
     /**
      * Find the schema node for $ref attribute.
      *