diff --git a/src/main/java/org/apache/ibatis/scripting/xmltags/OgnlCache.java b/src/main/java/org/apache/ibatis/scripting/xmltags/OgnlCache.java
index 0c59f25e6e4..1f24929623c 100644
--- a/src/main/java/org/apache/ibatis/scripting/xmltags/OgnlCache.java
+++ b/src/main/java/org/apache/ibatis/scripting/xmltags/OgnlCache.java
@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2018 the original author or authors.
+ *    Copyright 2009-2020 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@
  *
  * @author Eduardo Macarron
  *
- * @see <a href='http://code.google.com/p/mybatis/issues/detail?id=342'>Issue 342</a>
+ * @see <a href='https://github.com/mybatis/old-google-code-issues/issues/342'>Issue 342</a>
  */
 public final class OgnlCache {
 
diff --git a/src/main/java/org/apache/ibatis/session/Configuration.java b/src/main/java/org/apache/ibatis/session/Configuration.java
index eb0558c292d..32f93028c72 100644
--- a/src/main/java/org/apache/ibatis/session/Configuration.java
+++ b/src/main/java/org/apache/ibatis/session/Configuration.java
@@ -142,7 +142,7 @@ public class Configuration {
    * Configuration factory class.
    * Used to create Configuration for loading deserialized unread properties.
    *
-   * @see <a href='https://code.google.com/p/mybatis/issues/detail?id=300'>Issue 300 (google code)</a>
+   * @see <a href='https://github.com/mybatis/old-google-code-issues/issues/300'>Issue 300 (google code)</a>
    */
   protected Class<?> configurationFactory;
 
diff --git a/src/test/java/org/apache/ibatis/datasource/unpooled/UnpooledDataSourceTest.java b/src/test/java/org/apache/ibatis/datasource/unpooled/UnpooledDataSourceTest.java
index 56f3d1cc2cd..01d6291843a 100644
--- a/src/test/java/org/apache/ibatis/datasource/unpooled/UnpooledDataSourceTest.java
+++ b/src/test/java/org/apache/ibatis/datasource/unpooled/UnpooledDataSourceTest.java
@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2019 the original author or authors.
+ *    Copyright 2009-2020 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@ class UnpooledDataSourceTest {
 
   @Test
   void shouldNotRegisterTheSameDriverMultipleTimes() throws Exception {
-    // https://code.google.com/p/mybatis/issues/detail?id=430
+    // https://github.com/mybatis/old-google-code-issues/issues/430
     UnpooledDataSource dataSource = null;
     dataSource = new UnpooledDataSource("org.hsqldb.jdbcDriver", "jdbc:hsqldb:mem:multipledrivers", "sa", "");
     dataSource.getConnection().close();
diff --git a/src/test/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandlerTest.java b/src/test/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandlerTest.java
index 15e5970e4c6..a20e3794c61 100644
--- a/src/test/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandlerTest.java
+++ b/src/test/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandlerTest.java
@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2019 the original author or authors.
+ *    Copyright 2009-2020 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -69,7 +69,7 @@ class DefaultResultSetHandlerTest {
   /**
    * Contrary to the spec, some drivers require case-sensitive column names when getting result.
    *
-   * @see <a href="http://code.google.com/p/mybatis/issues/detail?id=557">Issue 557</a>
+   * @see <a href="https://github.com/mybatis/old-google-code-issues/issues/557">Issue 557</a>
    */
   @Test
   void shouldRetainColumnNameCase() throws Exception {
diff --git a/src/test/java/org/apache/ibatis/submitted/refid_resolution/ExternalRefidResolutionTest.java b/src/test/java/org/apache/ibatis/submitted/refid_resolution/ExternalRefidResolutionTest.java
index b206e670fe0..066cc4c1167 100644
--- a/src/test/java/org/apache/ibatis/submitted/refid_resolution/ExternalRefidResolutionTest.java
+++ b/src/test/java/org/apache/ibatis/submitted/refid_resolution/ExternalRefidResolutionTest.java
@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2019 the original author or authors.
+ *    Copyright 2009-2020 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -23,7 +23,8 @@
 import org.junit.jupiter.api.Test;
 
 /**
- * @see http://code.google.com/p/mybatis/issues/detail?id=291
+ * @see <a href="https://github.com/mybatis/old-google-code-issues/issues/291>Issue 291</a>
+ *
  */
 class ExternalRefidResolutionTest {
   @Test
diff --git a/src/test/java/org/apache/ibatis/submitted/serializecircular/SerializeCircularTest.java b/src/test/java/org/apache/ibatis/submitted/serializecircular/SerializeCircularTest.java
index 00f592318b6..7dc076902c8 100644
--- a/src/test/java/org/apache/ibatis/submitted/serializecircular/SerializeCircularTest.java
+++ b/src/test/java/org/apache/ibatis/submitted/serializecircular/SerializeCircularTest.java
@@ -24,7 +24,6 @@
 import org.apache.ibatis.session.SqlSessionFactoryBuilder;
 import org.junit.jupiter.api.Test;
 
-//@Disabled("see issue #614")
 class SerializeCircularTest {
 
   @Test
@@ -41,7 +40,6 @@ void serializeAndDeserializeObjectsWithAggressiveLazyLoadingWithPreloadingAttrib
     }
   }
 
-  // @Disabled("See http://code.google.com/p/mybatis/issues/detail?id=614")
   @Test
   void serializeAndDeserializeObjectsWithoutAggressiveLazyLoadingWithoutPreloadingAttribute() throws Exception {
     try (SqlSession sqlSession = createSessionWithoutAggressiveLazyLoading()) {