diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ActionMetaData.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ActionMetaData.kt
index 3775cb51c..1d7e94a74 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ActionMetaData.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ActionMetaData.kt
@@ -5,7 +5,7 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ManagedIndexMetaData.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ManagedIndexMetaData.kt
index c778f999d..90186c042 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ManagedIndexMetaData.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ManagedIndexMetaData.kt
@@ -5,7 +5,6 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
@@ -57,7 +56,7 @@ data class ManagedIndexMetaData(
         if (actionMetaData != null) resultMap[ActionMetaData.ACTION] = actionMetaData.getMapValueString()
         if (stepMetaData != null) resultMap[StepMetaData.STEP] = stepMetaData.getMapValueString()
         if (policyRetryInfo != null) resultMap[PolicyRetryInfoMetaData.RETRY_INFO] = policyRetryInfo.getMapValueString()
-        if (info != null) resultMap[INFO] = Strings.toString(XContentFactory.jsonBuilder().map(info))
+        if (info != null) resultMap[INFO] = XContentFactory.jsonBuilder().map(info).toString()
 
         return resultMap
     }
diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/PolicyRetryInfoMetaData.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/PolicyRetryInfoMetaData.kt
index 33390fd2a..a8fe8bf29 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/PolicyRetryInfoMetaData.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/PolicyRetryInfoMetaData.kt
@@ -5,7 +5,7 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StateMetaData.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StateMetaData.kt
index ee2cf5ed2..7c6174106 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StateMetaData.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StateMetaData.kt
@@ -5,7 +5,7 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StepMetaData.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StepMetaData.kt
index c4a214c65..defe49287 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StepMetaData.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/StepMetaData.kt
@@ -5,7 +5,7 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
diff --git a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ValidationResult.kt b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ValidationResult.kt
index 3008207c1..c2d24a86a 100644
--- a/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ValidationResult.kt
+++ b/spi/src/main/kotlin/org.opensearch.indexmanagement.spi/indexstatemanagement/model/ValidationResult.kt
@@ -5,7 +5,7 @@
 
 package org.opensearch.indexmanagement.spi.indexstatemanagement.model
 
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.common.io.stream.Writeable
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ISMTemplateService.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ISMTemplateService.kt
index d1057676c..0cb0a7b84 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ISMTemplateService.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ISMTemplateService.kt
@@ -7,7 +7,7 @@ package org.opensearch.indexmanagement.indexstatemanagement
 
 import org.apache.lucene.util.automaton.Operations
 import org.opensearch.OpenSearchException
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.common.ValidationException
 import org.opensearch.common.regex.Regex
 import org.opensearch.indexmanagement.indexstatemanagement.model.ISMTemplate
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMUtils.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMUtils.kt
index 0ff9cc691..e3f381971 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMUtils.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMUtils.kt
@@ -17,7 +17,7 @@ import org.opensearch.action.get.GetResponse
 import org.opensearch.action.index.IndexRequest
 import org.opensearch.action.index.IndexResponse
 import org.opensearch.client.Client
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.common.time.DateFormatter
 import org.opensearch.common.unit.TimeValue
 import org.opensearch.common.xcontent.LoggingDeprecationHandler
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/IndexManagementRestTestCase.kt b/src/test/kotlin/org/opensearch/indexmanagement/IndexManagementRestTestCase.kt
index 733d9faf7..071ca91d9 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/IndexManagementRestTestCase.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/IndexManagementRestTestCase.kt
@@ -17,7 +17,7 @@ import org.opensearch.client.RestClient
 import org.opensearch.client.RequestOptions
 import org.opensearch.client.WarningsHandler
 import org.opensearch.client.ResponseException
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.common.io.PathUtils
 import org.opensearch.common.settings.Settings
 import org.opensearch.core.xcontent.DeprecationHandler
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/SecurityRestTestCase.kt b/src/test/kotlin/org/opensearch/indexmanagement/SecurityRestTestCase.kt
index 208722eba..540279a57 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/SecurityRestTestCase.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/SecurityRestTestCase.kt
@@ -19,7 +19,7 @@ import org.opensearch.client.Request
 import org.opensearch.client.Response
 import org.opensearch.client.ResponseException
 import org.opensearch.client.RestClient
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.xcontent.XContentType
 import org.opensearch.indexmanagement.indexstatemanagement.IndexStateManagementRestTestCase