From 3adb8883622afacd8b504579c2dce0b8db07155a Mon Sep 17 00:00:00 2001
From: YuCheng Hu <huyuchengus@gmail.com>
Date: Mon, 26 Apr 2021 00:11:43 -0400
Subject: [PATCH] Change code for full project compile

---
 .idea/.name                                   |   1 -
 .idea/compiler.xml                            |   8 +-
 .idea/jarRepositories.xml                     |  15 -
 .idea/libraries-with-intellij-classes.xml     |  65 -----
 .idea/misc.xml                                |   7 +-
 .idea/modules.xml                             |   6 -
 .idea/workspace.xml                           | 270 +-----------------
 .../toolkits/codebank/tests/LintcodeTest.java |   2 +-
 8 files changed, 18 insertions(+), 356 deletions(-)
 delete mode 100644 .idea/.name
 delete mode 100644 .idea/libraries-with-intellij-classes.xml

diff --git a/.idea/.name b/.idea/.name
deleted file mode 100644
index cb2497b5cb..0000000000
--- a/.idea/.name
+++ /dev/null
@@ -1 +0,0 @@
-cwiki-us-demo-tutorials
\ No newline at end of file
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 180534cff0..c1f674d39e 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -7,18 +7,12 @@
         <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
         <outputRelativeToContentRoot value="true" />
         <module name="codebank" />
-        <module name="cwiki-us-demo-tutorials" />
         <module name="discourse" />
       </profile>
     </annotationProcessing>
-    <bytecodeTargetLevel target="1.8">
+    <bytecodeTargetLevel>
       <module name="codebank" target="11" />
-      <module name="cwiki-us-demo-tutorials" target="11" />
-      <module name="cwiki-us-demo-tutorials.spring-batch" target="11" />
-      <module name="cwiki-us-demo-tutorials.spring-batch.main" target="11" />
-      <module name="cwiki-us-demo-tutorials.spring-batch.test" target="11" />
       <module name="discourse" target="11" />
-      <module name="lang-tutorial" target="1.5" />
       <module name="parent-modules" target="11" />
       <module name="toolkits" target="1.5" />
     </bytecodeTargetLevel>
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
index 24dce4c262..712ab9d985 100644
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@@ -1,21 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="RemoteRepositoriesConfiguration">
-    <remote-repository>
-      <option name="id" value="BintrayJCenter" />
-      <option name="name" value="BintrayJCenter" />
-      <option name="url" value="https://jcenter.bintray.com/" />
-    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Central Repository" />
       <option name="url" value="https://repo.maven.apache.org/maven2" />
     </remote-repository>
-    <remote-repository>
-      <option name="id" value="MavenRepo" />
-      <option name="name" value="MavenRepo" />
-      <option name="url" value="https://repo.maven.apache.org/maven2/" />
-    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Maven Central repository" />
@@ -26,10 +16,5 @@
       <option name="name" value="JBoss Community repository" />
       <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
     </remote-repository>
-    <remote-repository>
-      <option name="id" value="maven2" />
-      <option name="name" value="maven2" />
-      <option name="url" value="https://maven.ossez.com/repository/internal" />
-    </remote-repository>
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/libraries-with-intellij-classes.xml b/.idea/libraries-with-intellij-classes.xml
deleted file mode 100644
index 9fa31567f1..0000000000
--- a/.idea/libraries-with-intellij-classes.xml
+++ /dev/null
@@ -1,65 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="libraries-with-intellij-classes">
-    <option name="intellijApiContainingLibraries">
-      <list>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIU" />
-          <option name="groupId" value="com.jetbrains.intellij.idea" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIU" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIC" />
-          <option name="groupId" value="com.jetbrains.intellij.idea" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="ideaIC" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPY" />
-          <option name="groupId" value="com.jetbrains.intellij.pycharm" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPY" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPC" />
-          <option name="groupId" value="com.jetbrains.intellij.pycharm" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="pycharmPC" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="clion" />
-          <option name="groupId" value="com.jetbrains.intellij.clion" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="clion" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="riderRD" />
-          <option name="groupId" value="com.jetbrains.intellij.rider" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="riderRD" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="goland" />
-          <option name="groupId" value="com.jetbrains.intellij.goland" />
-        </LibraryCoordinatesState>
-        <LibraryCoordinatesState>
-          <option name="artifactId" value="goland" />
-          <option name="groupId" value="com.jetbrains" />
-        </LibraryCoordinatesState>
-      </list>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 740639b35c..17e19eb41d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -6,11 +6,6 @@
         <option value="$PROJECT_DIR$/pom.xml" />
       </list>
     </option>
-    <option name="ignoredFiles">
-      <set>
-        <option value="$PROJECT_DIR$/toolkits/pom.xml" />
-      </set>
-    </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="11" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK" />
 </project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
index 2da9b0836e..d29913b7c7 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -3,12 +3,6 @@
   <component name="ProjectModuleManager">
     <modules>
       <module fileurl="file://$PROJECT_DIR$/toolkits/codebank/codebank.iml" filepath="$PROJECT_DIR$/toolkits/codebank/codebank.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.iml" filepath="$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.main.iml" filepath="$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.main.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.iml" filepath="$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.main.iml" filepath="$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.main.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.test.iml" filepath="$PROJECT_DIR$/.idea/modules/spring-batch/cwiki-us-demo-tutorials.spring-batch.test.iml" />
-      <module fileurl="file://$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.test.iml" filepath="$PROJECT_DIR$/.idea/modules/cwiki-us-demo-tutorials.test.iml" />
       <module fileurl="file://$PROJECT_DIR$/toolkits/discourse/discourse.iml" filepath="$PROJECT_DIR$/toolkits/discourse/discourse.iml" />
       <module fileurl="file://$PROJECT_DIR$/parent-modules.iml" filepath="$PROJECT_DIR$/parent-modules.iml" />
       <module fileurl="file://$PROJECT_DIR$/toolkits/toolkits.iml" filepath="$PROJECT_DIR$/toolkits/toolkits.iml" />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 8996c0a2c9..58252cbbc8 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,291 +4,51 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="bc4dcfec-3698-4fde-a6cf-dd08b73f1f06" name="Default Changelist" comment="Change name and description">
+    <list default="true" id="e4ccec40-1722-49be-ba56-1cba428e2e66" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/.name" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/encodings.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/encodings.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/jarRepositories.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/jarRepositories.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries-with-intellij-classes.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/modules.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/algorithm/models/ListNode.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/algorithm/models/TreeNode.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/algorithm/usecases/VarargsCase.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/main/java/com/ossez/toolkits/codebank/common/usecase/VarargsCase.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/algorithml/utils/TreeUtils.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/main/java/com/ossez/toolkits/codebank/common/utils/TreeUtils.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/interview/KayakCountUpDown.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/main/java/com/ossez/toolkits/codebank/common/interview/KayakCountUpDown.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/interview/KayakRobotMovement.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/main/java/com/ossez/toolkits/codebank/common/interview/KayakRobotMovement.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/ossez/codebank/interview/ManNextFibonacciNumber.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/main/java/com/ossez/toolkits/codebank/common/interview/ManNextFibonacciNumber.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/BitOperationTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/BitOperationTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/LintcodeTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/SingletonTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/SingletonTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/TreeTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/TreeTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/codility/CodilityBinaryGapTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0007SerializeAndDeserializeTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0069LevelOrderTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0102HasCycleTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0165MergeTwoListsTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0425LetterCombinationsTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode0433NumIslandsTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/algorithm/tests/lintcode/LintCode1480DotProductTest.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/AmazonTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/AmazonTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/KayakTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/KayakTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/MassMutual.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/MassMutual.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/PillPackTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/PillPackTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/TennaTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/TennaTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/WayfairTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/WayfairTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/others/LambdaEvensTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/LambdaEvensTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/ossez/codebank/interview/tests/others/MinimumCoinsTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/interview/MinimumCoinsTest.java" afterDir="false" />
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-      <change beforePath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/VariableTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/VariableTest.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/toolkits/discourse/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/discourse/pom.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java" afterDir="false" />
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     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
-  <component name="CodeStyleSettingsInfer">
-    <option name="done" value="true" />
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-  <component name="ExternalProjectsData">
-    <projectState path="$PROJECT_DIR$">
-      <ProjectState />
-    </projectState>
-  </component>
   <component name="Git.Settings">
-    <option name="RECENT_BRANCH_BY_REPOSITORY">
-      <map>
-        <entry key="$PROJECT_DIR$" value="current" />
-      </map>
-    </option>
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
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-  <component name="GitSEFilterConfiguration">
-    <file-type-list>
-      <filtered-out-file-type name="LOCAL_BRANCH" />
-      <filtered-out-file-type name="REMOTE_BRANCH" />
-      <filtered-out-file-type name="TAG" />
-      <filtered-out-file-type name="COMMIT_BY_MESSAGE" />
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-  <component name="ProjectCodeStyleSettingsMigration">
-    <option name="version" value="1" />
-  </component>
-  <component name="ProjectId" id="1r1Zx6oqLWRPWaxq39M8I4kCZrQ" />
-  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
+  <component name="ProjectId" id="1rgubunw7ryTECA0xroZNQRefbN" />
   <component name="ProjectViewState">
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
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-      <recent name="C:\WorkDir\GitHub\cwiki-us-docs\java-tutorials\spring-batch" />
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-      <recent name="C:\WorkDir\GitHub\cwiki-us-docs\java-tutorials\toolkits" />
-      <recent name="C:\WorkDir\GitHub\cwiki-us-docs\java-tutorials\toolkits\test\java\com\ossez\edtestbank\service\test" />
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-      <properties />
-      <listeners />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
-    <configuration name="TennaTest.testOptimizedMath" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-      <module name="codebank" />
-      <extension name="coverage">
-        <pattern>
-          <option name="PATTERN" value="com.ossez.toolkits.codebank.tests.interview.*" />
-          <option name="ENABLED" value="true" />
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-      <option name="PACKAGE_NAME" value="com.ossez.toolkits.codebank.tests.interview" />
-      <option name="MAIN_CLASS_NAME" value="com.ossez.toolkits.codebank.tests.interview.TennaTest" />
-      <option name="METHOD_NAME" value="testOptimizedMath" />
-      <option name="TEST_OBJECT" value="method" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
-    <configuration name="WayfairTest.testBuildCastles" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-      <module name="codebank" />
-      <extension name="coverage">
-        <pattern>
-          <option name="PATTERN" value="com.ossez.toolkits.codebank.tests.interview.*" />
-          <option name="ENABLED" value="true" />
-        </pattern>
-      </extension>
-      <option name="PACKAGE_NAME" value="com.ossez.toolkits.codebank.tests.interview" />
-      <option name="MAIN_CLASS_NAME" value="com.ossez.toolkits.codebank.tests.interview.WayfairTest" />
-      <option name="METHOD_NAME" value="testBuildCastles" />
-      <option name="TEST_OBJECT" value="method" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
-    <recent_temporary>
-      <list>
-        <item itemvalue="JUnit.WayfairTest.testBuildCastles" />
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diff --git a/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java b/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java
index 082e4b6b62..21b25848e7 100644
--- a/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java
+++ b/toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/LintcodeTest.java
@@ -7,11 +7,11 @@ import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import com.ossez.toolkits.codebank.common.model.ListNode;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.ossez.lang.tutorial.models.ListNode;
 
 /**
  *