Add dependabot.yml and pull request template

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -0,0 +1,20 @@
+# Pull Request Template
+
+## Description
+
+Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context.
+
+Fixes # (issue)
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- Bug fix (non-breaking change which fixes an issue)
+- New feature (non-breaking change which adds functionality)
+- Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- This change requires a documentation update
+
+## How has this been tested
+
+Please describe the tests that you ran to verify your changes. Provide instructions, so we can reproduce.

.github/dependabot.yml

@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: maven
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "12:00"
+      timezone: Europe/Bucharest
+    open-pull-requests-limit: 10
+    target-branch: main

src/main/java/org/kpax/winfoom/util/JsonUtils.java

@@ -3,18 +3,19 @@
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.Iterator;
 import lombok.experimental.UtilityClass;
 import org.kpax.winfoom.annotation.NotNull;
 import org.springframework.util.Assert;
 
-import java.util.Iterator;
-
 @UtilityClass
 public class JsonUtils {
 
+    private static final ObjectMapper objectMapper = new ObjectMapper();
+
     public static Iterator<String> getFieldNames(@NotNull String json) throws JsonProcessingException {
         Assert.notNull(json, "json cannot be null");
-        JsonNode tree = new ObjectMapper().readTree(json);
+        JsonNode tree = objectMapper.readTree(json);
         return tree.fieldNames();
     }
 }