diff --git a/.travis.yml b/.travis.yml
index fe678b279..5d1bfdfc5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,23 +1,3 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-sudo: required
-
-dist: xenial
 language: scala
 scala:
   - 2.12.10
@@ -60,6 +40,3 @@ script:
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
-
-after_failure:
-  - for log in `find * -name "unit-tests.log"`; do echo "=========$log========="; cat $log; done
diff --git a/kyuubi-common/src/main/scala/org/apache/kyuubi/service/authentication/package.scala b/kyuubi-common/src/main/scala/org/apache/kyuubi/service/authentication/package.scala
index ff0e72086..f09cd7cf3 100644
--- a/kyuubi-common/src/main/scala/org/apache/kyuubi/service/authentication/package.scala
+++ b/kyuubi-common/src/main/scala/org/apache/kyuubi/service/authentication/package.scala
@@ -92,7 +92,6 @@ package object authentication {
       " applicable only if Kyuubi is configured to use Kerberos authentication.")
     .version("1.0.0")
     .stringConf
-    .checkValues(SaslQOP.values.map(_.toString))
     .transform(_.toLowerCase(Locale.ROOT))
     .createWithDefault(SaslQOP.AUTH.toString)
 }
diff --git a/kyuubi-common/src/test/scala/org/apache/kyuubi/service/authentication/SaslQOPSuite.scala b/kyuubi-common/src/test/scala/org/apache/kyuubi/service/authentication/SaslQOPSuite.scala
deleted file mode 100644
index e9acf7689..000000000
--- a/kyuubi-common/src/test/scala/org/apache/kyuubi/service/authentication/SaslQOPSuite.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.kyuubi.service.authentication
-
-import org.apache.kyuubi.KyuubiFunSuite
-import org.apache.kyuubi.config.KyuubiConf
-
-class SaslQOPSuite extends KyuubiFunSuite {
-
-  test("sasl qop") {
-    val conf = KyuubiConf(false)
-    assert(conf.get(SASL_QOP) === SaslQOP.AUTH.toString)
-    SaslQOP.values.foreach { q =>
-      conf.set(SASL_QOP, q.toString)
-      assert(SaslQOP.withName(conf.get(SASL_QOP)) === q)
-    }
-    conf.set(SASL_QOP, "abc")
-    val e = intercept[IllegalArgumentException](conf.get(SASL_QOP))
-    assert(e.getMessage ===
-      "The value of kyuubi.sasl.qop should be one of auth, auth-conf, auth-int, but was abc")
-  }
-
-}
diff --git a/kyuubi-server/pom.xml b/kyuubi-server/pom.xml
index 7a7b018e3..ac61ff3de 100644
--- a/kyuubi-server/pom.xml
+++ b/kyuubi-server/pom.xml
@@ -63,28 +63,28 @@
         </dependency>
 
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-sql_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <scope>${spark.scope}</scope>
         </dependency>
 
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-hive_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <scope>${spark.scope}</scope>
         </dependency>
 
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-tags_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <scope>${spark.scope}</scope>
         </dependency>
 
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-yarn_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <scope>${spark.scope}</scope>
@@ -145,21 +145,21 @@
         </dependency>
 
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-core_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <type>test-jar</type>
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-catalyst_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <type>test-jar</type>
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.apache.spark</groupId>
+            <groupId>${spark.group}</groupId>
             <artifactId>spark-sql_${scala.binary.version}</artifactId>
             <version>${spark.version2}</version>
             <type>test-jar</type>
diff --git a/pom.xml b/pom.xml
index b73c96153..46aa8868b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
         <scala.version>2.12.10</scala.version>
         <scalatest.version>3.0.3</scalatest.version>
         <scala.binary.version>2.12</scala.binary.version>
-        <maven.version>3.6.3</maven.version>
+        <maven.version>3.6.2</maven.version>
         <spark.group>org.apache.spark</spark.group>
         <spark.version>3.0.1</spark.version>
         <spark.scope>provided</spark.scope>
@@ -432,7 +432,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-		            <version>3.8.1</version>
+		            <version>${maven.version}</version>
                     <configuration>
                         <source>${java.version}</source>
                         <target>${java.version}</target>
@@ -504,7 +504,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-surefire-plugin</artifactId>
-                    <version>2.22.0</version>
+                    <version>2.12.4</version>
                     <configuration>
                         <skipTests>true</skipTests>
                     </configuration>
@@ -577,13 +577,13 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-jar-plugin</artifactId>
-                    <version>3.2.0</version>
+                    <version>3.0.2</version>
                 </plugin>
 
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-assembly-plugin</artifactId>
-                    <version>3.2.0</version>
+                    <version>3.1.0</version>
                 </plugin>
 
                 <plugin>