diff --git a/build.gradle b/build.gradle
index 63779a569..22678d38d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -59,7 +59,7 @@ buildscript {
         classpath "org.opensearch.gradle:build-tools:${opensearch_version}"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlin_version}"
         classpath "org.jetbrains.kotlin:kotlin-allopen:${kotlin_version}"
-        classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.17.1"
+        classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.21.0"
         classpath "org.jacoco:org.jacoco.agent:0.8.7"
     }
 }
@@ -95,7 +95,7 @@ configurations.all {
         force 'org.apache.httpcomponents.client5:httpclient5:5.0.3'
         force 'org.apache.httpcomponents.client5:httpclient5-osgi:5.0.3'
         force 'com.fasterxml.jackson.core:jackson-databind:2.10.4'
-        force 'org.yaml:snakeyaml:1.26'
+        force 'org.yaml:snakeyaml:1.31'
         force 'org.codehaus.plexus:plexus-utils:3.0.24'
     }
 }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/IndexManagementPlugin.kt b/src/main/kotlin/org/opensearch/indexmanagement/IndexManagementPlugin.kt
index 116a5b055..4cd69b92e 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/IndexManagementPlugin.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/IndexManagementPlugin.kt
@@ -73,7 +73,7 @@ import org.opensearch.indexmanagement.indexstatemanagement.transport.action.retr
 import org.opensearch.indexmanagement.indexstatemanagement.transport.action.updateindexmetadata.TransportUpdateManagedIndexMetaDataAction
 import org.opensearch.indexmanagement.indexstatemanagement.transport.action.updateindexmetadata.UpdateManagedIndexMetaDataAction
 import org.opensearch.indexmanagement.indexstatemanagement.util.DEFAULT_INDEX_TYPE
-import org.opensearch.indexmanagement.migration.ISMTemplateService
+import org.opensearch.indexmanagement.indexstatemanagement.migration.ISMTemplateService
 import org.opensearch.indexmanagement.refreshanalyzer.RefreshSearchAnalyzerAction
 import org.opensearch.indexmanagement.refreshanalyzer.RestRefreshSearchAnalyzerAction
 import org.opensearch.indexmanagement.refreshanalyzer.TransportRefreshSearchAnalyzerAction
@@ -280,7 +280,7 @@ class IndexManagementPlugin : JobSchedulerExtension, NetworkPlugin, ActionPlugin
         indexManagementExtensions.forEach { extension ->
             val extensionName = extension.getExtensionName()
             if (extensionName in extensions) {
-                throw IllegalStateException("Multiple extensions of IndexManagement have same name $extensionName - not supported")
+                error("Multiple extensions of IndexManagement have same name $extensionName - not supported")
             }
             extension.getISMActionParsers().forEach { parser ->
                 ISMActionsParser.instance.addParser(parser, extensionName)
@@ -288,7 +288,7 @@ class IndexManagementPlugin : JobSchedulerExtension, NetworkPlugin, ActionPlugin
             indexMetadataServices.add(extension.getIndexMetadataService())
             extension.overrideClusterStateIndexUuidSetting()?.let {
                 if (customIndexUUIDSetting != null) {
-                    throw IllegalStateException(
+                    error(
                         "Multiple extensions of IndexManagement plugin overriding ClusterStateIndexUUIDSetting - not supported"
                     )
                 }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/common/model/notification/Channel.kt b/src/main/kotlin/org/opensearch/indexmanagement/common/model/notification/Channel.kt
index 8b4c1cec4..f26c8f0d8 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/common/model/notification/Channel.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/common/model/notification/Channel.kt
@@ -61,7 +61,7 @@ data class Channel(val id: String) : ToXContent, Writeable {
                 when (fieldName) {
                     ID -> id = xcp.text()
                     else -> {
-                        throw IllegalStateException("Unexpected field: $fieldName, while parsing Channel destination")
+                        error("Unexpected field: $fieldName, while parsing Channel destination")
                     }
                 }
             }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexCoordinator.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexCoordinator.kt
index 9cdf89b5f..26d1ac590 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexCoordinator.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexCoordinator.kt
@@ -73,7 +73,7 @@ import org.opensearch.indexmanagement.indexstatemanagement.util.isFailed
 import org.opensearch.indexmanagement.indexstatemanagement.util.isPolicyCompleted
 import org.opensearch.indexmanagement.indexstatemanagement.util.managedIndexConfigIndexRequest
 import org.opensearch.indexmanagement.indexstatemanagement.util.updateEnableManagedIndexRequest
-import org.opensearch.indexmanagement.migration.ISMTemplateService
+import org.opensearch.indexmanagement.indexstatemanagement.migration.ISMTemplateService
 import org.opensearch.indexmanagement.opensearchapi.IndexManagementSecurityContext
 import org.opensearch.indexmanagement.opensearchapi.contentParser
 import org.opensearch.indexmanagement.opensearchapi.parseFromSearchResponse
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/migration/MigrationServices.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/migration/MigrationServices.kt
index 43845844f..154ce65d5 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/migration/MigrationServices.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/migration/MigrationServices.kt
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-package org.opensearch.indexmanagement.migration
+package org.opensearch.indexmanagement.indexstatemanagement.migration
 
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Chime.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Chime.kt
index c7e5102ce..1b1f4a3e2 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Chime.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Chime.kt
@@ -15,7 +15,6 @@ import org.opensearch.common.xcontent.XContentParser
 import org.opensearch.common.xcontent.XContentParser.Token
 import org.opensearch.common.xcontent.XContentParserUtils.ensureExpectedToken
 import java.io.IOException
-import java.lang.IllegalStateException
 
 /**
  * A value object that represents a Chime message. Chime message will be
@@ -58,7 +57,7 @@ data class Chime(val url: String) : ToXContent, Writeable {
                 when (fieldName) {
                     URL -> url = xcp.text()
                     else -> {
-                        throw IllegalStateException("Unexpected field: $fieldName, while parsing Chime destination")
+                        error("Unexpected field: $fieldName, while parsing Chime destination")
                     }
                 }
             }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/CustomWebhook.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/CustomWebhook.kt
index 288757c7c..ce008b865 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/CustomWebhook.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/CustomWebhook.kt
@@ -15,7 +15,6 @@ import org.opensearch.common.xcontent.XContentParser
 import org.opensearch.common.xcontent.XContentParser.Token
 import org.opensearch.common.xcontent.XContentParserUtils.ensureExpectedToken
 import java.io.IOException
-import java.lang.IllegalStateException
 
 /**
  * A value object that represents a Custom webhook message. Webhook message will be
@@ -121,7 +120,7 @@ data class CustomWebhook(
                     USERNAME_FIELD -> username = xcp.textOrNull()
                     PASSWORD_FIELD -> password = xcp.textOrNull()
                     else -> {
-                        throw IllegalStateException("Unexpected field: $fieldName, while parsing custom webhook destination")
+                        error("Unexpected field: $fieldName, while parsing custom webhook destination")
                     }
                 }
             }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Slack.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Slack.kt
index a3db82c97..81c338e64 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Slack.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/model/destination/Slack.kt
@@ -15,7 +15,6 @@ import org.opensearch.common.xcontent.XContentParser
 import org.opensearch.common.xcontent.XContentParser.Token
 import org.opensearch.common.xcontent.XContentParserUtils.ensureExpectedToken
 import java.io.IOException
-import java.lang.IllegalStateException
 
 /**
  * A value object that represents a Slack message. Slack message will be
@@ -58,7 +57,7 @@ data class Slack(val url: String) : ToXContent, Writeable {
                 when (fieldName) {
                     URL -> url = xcp.text()
                     else -> {
-                        throw IllegalStateException("Unexpected field: $fieldName, while parsing Slack destination")
+                        error("Unexpected field: $fieldName, while parsing Slack destination")
                     }
                 }
             }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/step/shrink/AttemptMoveShardsStep.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/step/shrink/AttemptMoveShardsStep.kt
index 8d2614226..6d1764e4c 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/step/shrink/AttemptMoveShardsStep.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/step/shrink/AttemptMoveShardsStep.kt
@@ -135,8 +135,8 @@ class AttemptMoveShardsStep(private val action: ShrinkAction) : ShrinkStep(name,
     private fun getOriginalSettings(indexName: String, clusterService: ClusterService): Map<String, String> {
         val indexSettings = clusterService.state().metadata.index(indexName).settings
         val originalSettings = mutableMapOf<String, String>()
-        indexSettings.get(ROUTING_SETTING)?.let { it -> originalSettings.put(ROUTING_SETTING, it) }
-        indexSettings.get(SETTING_BLOCKS_WRITE)?.let { it -> originalSettings.put(SETTING_BLOCKS_WRITE, it) }
+        indexSettings.get(ROUTING_SETTING)?.let { originalSettings.put(ROUTING_SETTING, it) }
+        indexSettings.get(SETTING_BLOCKS_WRITE)?.let { originalSettings.put(SETTING_BLOCKS_WRITE, it) }
         return originalSettings
     }
 
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupIndexer.kt b/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupIndexer.kt
index 5e4a7a9ee..6bc35fb0d 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupIndexer.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupIndexer.kt
@@ -120,7 +120,7 @@ class RollupIndexer(
                     is InternalMin -> aggResults[it.name] = it.value
                     is InternalValueCount -> aggResults[it.name] = it.value
                     is InternalAvg -> aggResults[it.name] = it.value
-                    else -> throw IllegalStateException("Found aggregation in composite result that is not supported [${it.type} - ${it.name}]")
+                    else -> error("Found aggregation in composite result that is not supported [${it.type} - ${it.name}]")
                 }
             }
             mapOfKeyValues.putAll(aggResults)
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupRunner.kt b/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupRunner.kt
index 016d2a27e..9dba61b5c 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupRunner.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupRunner.kt
@@ -293,7 +293,7 @@ object RollupRunner :
                                 ) {
                                     client.suspendUntil { listener: ActionListener<GetRollupResponse> ->
                                         execute(GetRollupAction.INSTANCE, GetRollupRequest(updatableJob.id, null, "_local"), listener)
-                                    }.rollup ?: throw IllegalStateException("Unable to get rollup job")
+                                    }.rollup ?: error("Unable to get rollup job")
                                 }
                             }
                             is RollupResult.Failure -> {
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/rollup/util/RollupUtils.kt b/src/main/kotlin/org/opensearch/indexmanagement/rollup/util/RollupUtils.kt
index 12e090df7..2bbfd6092 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/rollup/util/RollupUtils.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/rollup/util/RollupUtils.kt
@@ -143,7 +143,7 @@ inline fun <reified T> Rollup.findMatchingMetricField(field: String): String {
             }
         }
     }
-    throw IllegalStateException("Did not find matching rollup metric")
+    error("Did not find matching rollup metric")
 }
 
 @Suppress("NestedBlockDepth", "ComplexMethod")
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMRunner.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMRunner.kt
index 3e36ed28d..272f3307d 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMRunner.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/SMRunner.kt
@@ -62,8 +62,11 @@ object SMRunner :
         return this
     }
 
+    private const val MAX_NUMBER_OF_RETRIES = 3
+    private const val EXPONENTIAL_BACKOFF_MILLIS = 1000L
+
     private val backoffPolicy: BackoffPolicy = BackoffPolicy.exponentialBackoff(
-        TimeValue.timeValueMillis(1000L), 3
+        TimeValue.timeValueMillis(EXPONENTIAL_BACKOFF_MILLIS), MAX_NUMBER_OF_RETRIES
     )
 
     override fun runJob(job: ScheduledJobParameter, context: JobExecutionContext) {
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/SMStateMachine.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/SMStateMachine.kt
index ae17e25ce..4556030e5 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/SMStateMachine.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/SMStateMachine.kt
@@ -166,7 +166,7 @@ class SMStateMachine(
         val retryCount: Int
         if (retry == null) {
             log.warn("Starting to retry state [$currentState], remaining count 3.")
-            metadataBuilder.setRetry(3) // TODO SM 3 retry count could be customizable
+            metadataBuilder.setRetry(MAX_NUMBER_OF_RETRIES) // TODO SM 3 retry count could be customizable
         } else {
             retryCount = retry.count - 1
             if (retryCount > 0) {
@@ -218,7 +218,8 @@ class SMStateMachine(
 
         // TODO SM save a copy to history
     }
-    private val updateMetaDataRetryPolicy = BackoffPolicy.exponentialBackoff(TimeValue.timeValueMillis(250), 3)
+
+    private val updateMetaDataRetryPolicy = BackoffPolicy.exponentialBackoff(TimeValue.timeValueMillis(EXPONENTIAL_BACKOFF_MILLIS), MAX_NUMBER_OF_RETRIES)
 
     /**
      * Handle the policy change before job running
@@ -241,4 +242,9 @@ class SMStateMachine(
         }
         return this
     }
+
+    companion object {
+        private const val MAX_NUMBER_OF_RETRIES = 3
+        private const val EXPONENTIAL_BACKOFF_MILLIS = 250L
+    }
 }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/creation/CreatingState.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/creation/CreatingState.kt
index d2aff8500..bc4b296bd 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/creation/CreatingState.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/creation/CreatingState.kt
@@ -44,7 +44,7 @@ object CreatingState : State {
         if (snapshotName == null) {
             val getSnapshotsResult = client.getSnapshots(
                 job, job.policyName + "*", metadataBuilder,
-                log, null, getSnapshotsErrorMessage(),
+                log, null, SNAPSHOT_ERROR_MESSAGE,
             )
             metadataBuilder = getSnapshotsResult.metadataBuilder
             if (getSnapshotsResult.failed) {
@@ -86,10 +86,10 @@ object CreatingState : State {
 
     private fun handleException(ex: Exception, snapshotName: String, metadataBuilder: SMMetadata.Builder, log: Logger): SMResult {
         if (ex is ConcurrentSnapshotExecutionException) {
-            log.error(getConcurrentSnapshotMessage(), ex)
+            log.error(CONCURRENT_SNAPSHOT_MESSAGE, ex)
             metadataBuilder.setLatestExecution(
                 status = SMMetadata.LatestExecution.Status.RETRYING,
-                message = getConcurrentSnapshotMessage(),
+                message = CONCURRENT_SNAPSHOT_MESSAGE,
             )
             return SMResult.Stay(metadataBuilder)
         }
@@ -102,10 +102,10 @@ object CreatingState : State {
         return SMResult.Fail(metadataBuilder, WorkflowType.CREATION)
     }
 
-    fun getConcurrentSnapshotMessage() = "Concurrent snapshot exception happened, retrying..."
+    const val CONCURRENT_SNAPSHOT_MESSAGE = "Concurrent snapshot exception happened, retrying..."
     private fun getSnapshotCreationStartedMessage(snapshotName: String) =
         "Snapshot $snapshotName creation has been started and waiting for completion."
-    private fun getSnapshotsErrorMessage() =
+    private const val SNAPSHOT_ERROR_MESSAGE =
         "Caught exception while getting snapshots to decide if snapshot has been created in previous execution period."
     private fun getCreateSnapshotErrorMessage(snapshotName: String) =
         "Caught exception while creating snapshot $snapshotName."
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/deletion/DeletingState.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/deletion/DeletingState.kt
index 2cffb7b5d..0aa9cfdd8 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/deletion/DeletingState.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/engine/states/deletion/DeletingState.kt
@@ -86,10 +86,10 @@ object DeletingState : State {
 
     private fun handleException(ex: Exception, snapshotsToDelete: List<String>, metadataBuilder: SMMetadata.Builder, log: Logger): SMResult {
         if (ex is ConcurrentSnapshotExecutionException) {
-            log.error(CreatingState.getConcurrentSnapshotMessage(), ex)
+            log.error(CreatingState.CONCURRENT_SNAPSHOT_MESSAGE, ex)
             metadataBuilder.setLatestExecution(
                 status = SMMetadata.LatestExecution.Status.RETRYING,
-                message = CreatingState.getConcurrentSnapshotMessage(),
+                message = CreatingState.CONCURRENT_SNAPSHOT_MESSAGE,
             )
             return SMResult.Stay(metadataBuilder)
         }
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/model/SMPolicy.kt b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/model/SMPolicy.kt
index 60ccac14b..dbc678ef8 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/model/SMPolicy.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/snapshotmanagement/model/SMPolicy.kt
@@ -55,9 +55,15 @@ data class SMPolicy(
 ) : ScheduledJobParameter, Writeable {
 
     init {
-        require(snapshotConfig["repository"] != null && snapshotConfig["repository"] != "") { "Must provide the repository in snapshot config." }
-        require(creation.schedule.getNextExecutionTime(now()) != null) { "Next execution time from the creation schedule is null, please provide a valid cron expression." }
-        require(deletion == null || (deletion.schedule.getNextExecutionTime(now()) != null)) { "Next execution time from the deletion schedule is null, please provide a valid cron expression." }
+        require(snapshotConfig["repository"] != null && snapshotConfig["repository"] != "") {
+            "Must provide the repository in snapshot config."
+        }
+        require(creation.schedule.getNextExecutionTime(now()) != null) {
+            "Next execution time from the creation schedule is null, please provide a valid cron expression."
+        }
+        require(deletion == null || (deletion.schedule.getNextExecutionTime(now()) != null)) {
+            "Next execution time from the deletion schedule is null, please provide a valid cron expression."
+        }
     }
 
     // This name is used by the job scheduler and needs to match the id to avoid namespace conflicts with ISM policies sharing the same name
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/transform/TransformValidator.kt b/src/main/kotlin/org/opensearch/indexmanagement/transform/TransformValidator.kt
index bc6c63234..a7ee2586e 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/transform/TransformValidator.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/transform/TransformValidator.kt
@@ -24,7 +24,6 @@ import org.opensearch.indexmanagement.transform.model.TransformValidationResult
 import org.opensearch.indexmanagement.transform.settings.TransformSettings
 import org.opensearch.monitor.jvm.JvmService
 import org.opensearch.transport.RemoteTransportException
-import java.lang.IllegalStateException
 
 @Suppress("SpreadOperator", "ReturnCount", "ThrowsCount")
 class TransformValidator(
@@ -93,9 +92,7 @@ class TransformValidator(
     private suspend fun validateIndex(index: String, transform: Transform): List<String> {
         val request = GetMappingsRequest().indices(index)
         val result: GetMappingsResponse =
-            client.admin().indices().suspendUntil { getMappings(request, it) } ?: throw IllegalStateException(
-                "GetMappingResponse for [$index] was null"
-            )
+            client.admin().indices().suspendUntil { getMappings(request, it) } ?: error("GetMappingResponse for [$index] was null")
         return validateMappingsResponse(index, result, transform)
     }
 
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/action/RolloverActionIT.kt b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/action/RolloverActionIT.kt
index 99149cdd9..7d6d77935 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/action/RolloverActionIT.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/action/RolloverActionIT.kt
@@ -237,11 +237,11 @@ class RolloverActionIT : IndexStateManagementRestTestCase() {
 
         // assuming our ingestion is randomly split between the 20 primary shards
         // then 250kb/20 gives around 12.5kb per primary shard which is below our 100kb condition
-        val KB_250 = 250_000
+        val kb250 = 250_000
         var primaryStoreSizeBytes = 0
         var count = 0
         // Ingest data into the test index until the total size of the index is greater than our min primary size condition
-        while (primaryStoreSizeBytes < KB_250) {
+        while (primaryStoreSizeBytes < kb250) {
             // this count should never get as high as 10... if it does just fail the test
             if (count++ > 10) fail("Something is wrong with the data ingestion for testing rollover condition")
             insertSampleData(index = firstIndex, docCount = 20, jsonString = "{ \"test_field\": \"${OpenSearchTestCase.randomAlphaOfLength(7000)}\" }", delay = 0)
@@ -271,12 +271,12 @@ class RolloverActionIT : IndexStateManagementRestTestCase() {
             assertThat("Did not have min size current", minPrimarySize["current"], isA(String::class.java))
         }
 
-        val KB_150 = 150_000
+        val kb150 = 150_000
         var primaryShardSizeBytes = 0
         count = 0
         // Ingest data into the test index using custom routing so it always goes to a single shard until the size of the
         // primary shard is over 150kb
-        while (primaryShardSizeBytes < KB_150) {
+        while (primaryShardSizeBytes < kb150) {
             // this count should never get as high as 10... if it does just fail the test
             if (count++ > 10) fail("Something is wrong with the data ingestion for testing rollover condition")
             insertSampleData(index = firstIndex, docCount = 20, delay = 0, jsonString = "{ \"test_field\": \"${OpenSearchTestCase.randomAlphaOfLength(7000)}\" }", routing = "custom_routing")
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/coordinator/ManagedIndexCoordinatorTests.kt b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/coordinator/ManagedIndexCoordinatorTests.kt
index 5bd6b8da6..d04e7b05f 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/coordinator/ManagedIndexCoordinatorTests.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/coordinator/ManagedIndexCoordinatorTests.kt
@@ -21,7 +21,7 @@ import org.opensearch.indexmanagement.indexstatemanagement.IndexMetadataProvider
 import org.opensearch.indexmanagement.indexstatemanagement.ManagedIndexCoordinator
 import org.opensearch.indexmanagement.indexstatemanagement.MetadataService
 import org.opensearch.indexmanagement.indexstatemanagement.settings.ManagedIndexSettings
-import org.opensearch.indexmanagement.migration.ISMTemplateService
+import org.opensearch.indexmanagement.indexstatemanagement.migration.ISMTemplateService
 import org.opensearch.test.ClusterServiceUtils
 import org.opensearch.test.OpenSearchTestCase
 import org.opensearch.threadpool.Scheduler
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/refreshanalyzer/RefreshSearchAnalyzerResponseTests.kt b/src/test/kotlin/org/opensearch/indexmanagement/refreshanalyzer/RefreshSearchAnalyzerResponseTests.kt
index 3df655682..079cf6cd2 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/refreshanalyzer/RefreshSearchAnalyzerResponseTests.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/refreshanalyzer/RefreshSearchAnalyzerResponseTests.kt
@@ -22,34 +22,34 @@ class RefreshSearchAnalyzerResponseTests : OpenSearchTestCase() {
         val i2s0 = ShardId(index2, "xyz", 0)
         val i2s1 = ShardId(index2, "xyz", 1)
 
-        val response_i1s0 = RefreshSearchAnalyzerShardResponse(i1s0, listOf(syn1, syn2))
-        val response_i1s1 = RefreshSearchAnalyzerShardResponse(i1s1, listOf(syn1, syn2))
-        val response_i2s0 = RefreshSearchAnalyzerShardResponse(i2s0, listOf(syn1))
-        val response_i2s1 = RefreshSearchAnalyzerShardResponse(i2s1, listOf(syn1))
-        val failure_i1s0 = DefaultShardOperationFailedException(index1, 0, Throwable("dummyCause"))
-        val failure_i1s1 = DefaultShardOperationFailedException(index1, 1, Throwable("dummyCause"))
-        val failure_i2s0 = DefaultShardOperationFailedException(index2, 0, Throwable("dummyCause"))
-        val failure_i2s1 = DefaultShardOperationFailedException(index2, 1, Throwable("dummyCause"))
+        val responseI1s0 = RefreshSearchAnalyzerShardResponse(i1s0, listOf(syn1, syn2))
+        val responseI1s1 = RefreshSearchAnalyzerShardResponse(i1s1, listOf(syn1, syn2))
+        val responseI2s0 = RefreshSearchAnalyzerShardResponse(i2s0, listOf(syn1))
+        val responseI2s1 = RefreshSearchAnalyzerShardResponse(i2s1, listOf(syn1))
+        val failureI1s0 = DefaultShardOperationFailedException(index1, 0, Throwable("dummyCause"))
+        val failureI1s1 = DefaultShardOperationFailedException(index1, 1, Throwable("dummyCause"))
+        val failureI2s0 = DefaultShardOperationFailedException(index2, 0, Throwable("dummyCause"))
+        val failureI2s1 = DefaultShardOperationFailedException(index2, 1, Throwable("dummyCause"))
 
         // Case 1: All shards successful
-        var aggregate_response = listOf(response_i1s0, response_i1s1, response_i2s0, response_i2s1)
-        var aggregate_failures = listOf<DefaultShardOperationFailedException>()
-        var refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 4, 0, aggregate_failures, aggregate_response)
+        var aggregateResponse = listOf(responseI1s0, responseI1s1, responseI2s0, responseI2s1)
+        var aggregateFailures = listOf<DefaultShardOperationFailedException>()
+        var refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 4, 0, aggregateFailures, aggregateResponse)
         var successfulIndices = refreshSearchAnalyzerResponse.getSuccessfulRefreshDetails()
         Assert.assertTrue(successfulIndices.containsKey(index1))
         Assert.assertTrue(successfulIndices.containsKey(index2))
 
         // Case 2: All shards failed
-        aggregate_response = listOf<RefreshSearchAnalyzerShardResponse>()
-        aggregate_failures = listOf(failure_i1s0, failure_i1s1, failure_i2s0, failure_i2s1)
-        refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 0, 4, aggregate_failures, aggregate_response)
+        aggregateResponse = listOf<RefreshSearchAnalyzerShardResponse>()
+        aggregateFailures = listOf(failureI1s0, failureI1s1, failureI2s0, failureI2s1)
+        refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 0, 4, aggregateFailures, aggregateResponse)
         successfulIndices = refreshSearchAnalyzerResponse.getSuccessfulRefreshDetails()
         Assert.assertTrue(successfulIndices.isEmpty())
 
         // Case 3: Some shards of an index fail, while some others succeed
-        aggregate_response = listOf(response_i1s1, response_i2s0, response_i2s1)
-        aggregate_failures = listOf(failure_i1s0)
-        refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 3, 1, aggregate_failures, aggregate_response)
+        aggregateResponse = listOf(responseI1s1, responseI2s0, responseI2s1)
+        aggregateFailures = listOf(failureI1s0)
+        refreshSearchAnalyzerResponse = RefreshSearchAnalyzerResponse(4, 3, 1, aggregateFailures, aggregateResponse)
         successfulIndices = refreshSearchAnalyzerResponse.getSuccessfulRefreshDetails()
         Assert.assertTrue(successfulIndices.containsKey(index2))
         Assert.assertFalse(successfulIndices.containsKey(index1))