Use jsonB instead of jackson

Signed-off-by: Owais Kazi <[email protected]>

build.gradle

@@ -175,8 +175,10 @@ dependencies {
     implementation 'com.amazonaws:aws-encryption-sdk-java:2.4.1'
     implementation 'org.bouncycastle:bcprov-jdk18on:1.77'
     api "org.apache.httpcomponents.core5:httpcore5:5.2.2"
-    implementation("com.fasterxml.jackson.core:jackson-annotations:${versions.jackson}")
-    implementation("com.fasterxml.jackson.core:jackson-databind:${versions.jackson_databind}")
+    implementation "jakarta.json:jakarta.json-api:2.0.1"
+    implementation "jakarta.json.bind:jakarta.json.bind-api:2.0.0"
+    implementation ("org.eclipse:yasson:2.0.2")
+
 
     // ZipArchive dependencies used for integration tests
     zipArchive group: 'org.opensearch.plugin', name:'opensearch-ml-plugin', version: "${opensearch_build}"

src/main/java/org/opensearch/flowframework/util/ParseUtils.java

@@ -9,7 +9,9 @@
 package org.opensearch.flowframework.util;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
+
+import jakarta.json.bind.Jsonb;
+import jakarta.json.bind.JsonbBuilder;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -416,10 +418,16 @@ public static Object conditionallySubstitute(Object value, Map<String, WorkflowD
      * @return instance of the string
      * @throws JsonProcessingException JsonProcessingException from Jackson for issues processing map
      */
-    public static String parseArbitraryStringToObjectMapToString(Map<String, Object> map) throws JsonProcessingException {
-        // Convert the map to a JSON string
-        String mappedString = mapper.writeValueAsString(map);
-        return mappedString;
+    public static String parseArbitraryStringToObjectMapToString(Map<String, Object> map) throws Exception {
+        Jsonb jsonb = JsonbBuilder.create();
+        try {
+            // Convert the map to a JSON string
+            String jsonString = jsonb.toJson(map);
+            return jsonString;
+        } finally {
+            // Close the Jsonb instance
+            jsonb.close();
+        }
     }
 
     /**

src/test/java/org/opensearch/flowframework/util/ParseUtilsTests.java

@@ -84,7 +84,7 @@ public void testBuildAndParseStringToStringMap() throws IOException {
         assertEquals(stringMap.get("one"), parsedMap.get("one"));
     }
 
-    public void testParseArbitraryStringToObjectMapToString() throws IOException {
+    public void testParseArbitraryStringToObjectMapToString() throws Exception {
         Map<String, Object> map = Map.ofEntries(Map.entry("test-1", Map.of("test-1", "test-1")));
         String parsedMap = ParseUtils.parseArbitraryStringToObjectMapToString(map);
         assertEquals("{\"test-1\":{\"test-1\":\"test-1\"}}", parsedMap);