added provider

Author: fehguy

java/java-jersey2/src/main/java/io/swagger/sample/util/JsonProvider.java

@@ -0,0 +1,21 @@
+package io.swagger.sample.util;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.swagger.util.Json;
+
+import javax.ws.rs.ext.ContextResolver;
+import javax.ws.rs.ext.Provider;
+
+@Provider
+public class JsonProvider implements ContextResolver<ObjectMapper> {
+    private final ObjectMapper objectMapper;
+
+    public JsonProvider() {
+        objectMapper = Json.mapper();
+    };
+
+    @Override
+    public ObjectMapper getContext(Class<?> type) {
+        return objectMapper;
+    }
+}