diff --git a/kyuubi-ctl/src/main/scala/org/apache/kyuubi/ctl/CtlConf.scala b/kyuubi-ctl/src/main/scala/org/apache/kyuubi/ctl/CtlConf.scala
index f299a5a88..58b65582a 100644
--- a/kyuubi-ctl/src/main/scala/org/apache/kyuubi/ctl/CtlConf.scala
+++ b/kyuubi-ctl/src/main/scala/org/apache/kyuubi/ctl/CtlConf.scala
@@ -19,12 +19,11 @@ package org.apache.kyuubi.ctl
 
 import java.time.Duration
 
-import org.apache.kyuubi.config.{ConfigBuilder, ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.{ConfigEntry, OptionalConfigEntry}
+import org.apache.kyuubi.config.KyuubiConf.buildConf
 
 object CtlConf {
 
-  private def buildConf(key: String): ConfigBuilder = KyuubiConf.buildConf(key)
-
   val CTL_REST_CLIENT_BASE_URL: OptionalConfigEntry[String] =
     buildConf("kyuubi.ctl.rest.base.url")
       .doc("The REST API base URL, " +
diff --git a/kyuubi-ha/src/main/scala/org/apache/kyuubi/ha/HighAvailabilityConf.scala b/kyuubi-ha/src/main/scala/org/apache/kyuubi/ha/HighAvailabilityConf.scala
index 6052e31f5..148a21e4d 100644
--- a/kyuubi-ha/src/main/scala/org/apache/kyuubi/ha/HighAvailabilityConf.scala
+++ b/kyuubi-ha/src/main/scala/org/apache/kyuubi/ha/HighAvailabilityConf.scala
@@ -21,14 +21,13 @@ import java.time.Duration
 
 import org.apache.hadoop.security.UserGroupInformation
 
-import org.apache.kyuubi.config.{ConfigBuilder, ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.{ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.KyuubiConf.buildConf
 import org.apache.kyuubi.ha.client.AuthTypes
 import org.apache.kyuubi.ha.client.RetryPolicies
 
 object HighAvailabilityConf {
 
-  private def buildConf(key: String): ConfigBuilder = KyuubiConf.buildConf(key)
-
   @deprecated("using kyuubi.ha.addresses instead", "1.6.0")
   val HA_ZK_QUORUM: ConfigEntry[String] = buildConf("kyuubi.ha.zookeeper.quorum")
     .doc("(deprecated) The connection string for the ZooKeeper ensemble")
diff --git a/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala b/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
index daa221b78..ad734ced5 100644
--- a/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
+++ b/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
@@ -19,13 +19,12 @@ package org.apache.kyuubi.metrics
 
 import java.time.Duration
 
-import org.apache.kyuubi.config.{ConfigBuilder, ConfigEntry, KyuubiConf}
+import org.apache.kyuubi.config.ConfigEntry
+import org.apache.kyuubi.config.KyuubiConf.buildConf
 import org.apache.kyuubi.metrics.ReporterType._
 
 object MetricsConf {
 
-  private def buildConf(key: String): ConfigBuilder = KyuubiConf.buildConf(key)
-
   val METRICS_ENABLED: ConfigEntry[Boolean] =
     buildConf("kyuubi.metrics.enabled")
       .doc("Set to true to enable kyuubi metrics system")
diff --git a/kyuubi-server/src/main/scala/org/apache/kyuubi/server/metadata/jdbc/JDBCMetadataStoreConf.scala b/kyuubi-server/src/main/scala/org/apache/kyuubi/server/metadata/jdbc/JDBCMetadataStoreConf.scala
index 84067b8d0..de30b6e66 100644
--- a/kyuubi-server/src/main/scala/org/apache/kyuubi/server/metadata/jdbc/JDBCMetadataStoreConf.scala
+++ b/kyuubi-server/src/main/scala/org/apache/kyuubi/server/metadata/jdbc/JDBCMetadataStoreConf.scala
@@ -19,13 +19,12 @@ package org.apache.kyuubi.server.metadata.jdbc
 
 import java.util.{Locale, Properties}
 
-import org.apache.kyuubi.config.{ConfigBuilder, ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.{ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.KyuubiConf.buildConf
 
 object JDBCMetadataStoreConf {
   final val METADATA_STORE_JDBC_DATASOURCE_PREFIX = "kyuubi.metadata.store.jdbc.datasource"
 
-  private def buildConf(key: String): ConfigBuilder = KyuubiConf.buildConf(key)
-
   /** Get metadata store jdbc datasource properties. */
   def getMetadataStoreJDBCDataSourceProperties(conf: KyuubiConf): Properties = {
     val datasourceProperties = new Properties()
diff --git a/kyuubi-zookeeper/src/main/scala/org/apache/kyuubi/zookeeper/ZookeeperConf.scala b/kyuubi-zookeeper/src/main/scala/org/apache/kyuubi/zookeeper/ZookeeperConf.scala
index ee1fe00dc..c6256a5e3 100644
--- a/kyuubi-zookeeper/src/main/scala/org/apache/kyuubi/zookeeper/ZookeeperConf.scala
+++ b/kyuubi-zookeeper/src/main/scala/org/apache/kyuubi/zookeeper/ZookeeperConf.scala
@@ -17,12 +17,11 @@
 
 package org.apache.kyuubi.zookeeper
 
-import org.apache.kyuubi.config.{ConfigBuilder, ConfigEntry, KyuubiConf, OptionalConfigEntry}
+import org.apache.kyuubi.config.{ConfigEntry, OptionalConfigEntry}
+import org.apache.kyuubi.config.KyuubiConf.buildConf
 
 object ZookeeperConf {
 
-  private def buildConf(key: String): ConfigBuilder = KyuubiConf.buildConf(key)
-
   @deprecated("using kyuubi.zookeeper.embedded.client.port instead", since = "1.2.0")
   val EMBEDDED_ZK_PORT: ConfigEntry[Int] = buildConf("kyuubi.zookeeper.embedded.port")
     .doc("The port of the embedded ZooKeeper server")