diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
deleted file mode 100644
index 1719a27..0000000
--- a/.devcontainer/Dockerfile
+++ /dev/null
@@ -1,13 +0,0 @@
-FROM mcr.microsoft.com/vscode/devcontainers/java:0-8
-
-ARG MAVEN_VERSION=""
-RUN \
-  su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install maven \"${MAVEN_VERSION}\""
-
-RUN \
-  apt-get update && \
-  export DEBIAN_FRONTEND=noninteractive && \
-  apt-get -y install --no-install-recommends gnupg2 && \
-  apt-get clean && \
-  apt-get autoremove --purge && \
-  rm -rf /var/lib/apt/lists/*
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 3caadf2..abc2558 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,43 +1,21 @@
 {
-  "name":"Magnetic Track Parser",
-  "build":{
-    "dockerfile":"Dockerfile",
-    "args":{
-      "INSTALL_MAVEN":"true",
-      "INSTALL_GRADLE":"true",
-      "NODE_VERSION":"none"
-    }
-  },
-  "settings":{
-    "java.home":"/docker-java-home",
-    "java.import.gradle.java.home":"/usr/local/sdkman/candidates/java/current",
-    "java.configuration.runtimes":[
-      {
-        "default":true,
-        "name":"JavaSE-1.8",
-        "path":"/usr/local/sdkman/candidates/java/current"
-      }
-    ],
-    "files.exclude":{
-      "workspace":true
+  "name": "magnetictrackparser",
+  "features": {
+    "ghcr.io/devcontainers/features/java:1": {
+      "version": "21",
+      "installMaven": "true"
     },
-    "java.configuration.updateBuildConfiguration":"automatic",
-    "java.format.settings.profile":"GoogleStyle",
-    "java.format.settings.url":"https://gist.github.com/sualeh/470c0954b597f1c717baa1ae64a80013",
-    "editor.tabSize":2,
-    "editor.foldingImportsByDefault": true,
-    "files.trimTrailingWhitespace":true,
-    "git.enableCommitSigning":true
+    "ghcr.io/devcontainers/features/github-cli:1": {}
+  },
+  "customizations": {
+    "vscode": {
+      "settings": {
+      },
+      "extensions": [
+        "vscjava.vscode-java-pack",
+        "editorconfig.editorconfig"
+      ]
+    }
   },
-  "extensions":[
-    "vscjava.vscode-java-pack",
-    "shengchen.vscode-checkstyle",
-    "editorconfig.editorconfig",
-    "pivotal.vscode-boot-dev-pack",
-    "pivotal.vscode-spring-boot",
-    "redhat.vscode-xml",
-    "jebbs.markdown-extended",
-    "davidanson.vscode-markdownlint"
-  ],
-  "remoteUser":"vscode"
+  "postCreateCommand": "mvn dependency:resolve"
 }
diff --git a/.gitignore b/.gitignore
index 2e87a20..6b1cc5c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ build/
 out/
 target/
 **/launch.json
+pom.xml.versionsBackup
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..a69ba16
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "vscjava.vscode-java-debug"
+    ]
+}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..33abc77
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,10 @@
+{
+    "scm.showInputActionButton": false,
+    "git.showActionButton": {
+        "commit": false,
+        "publish": false,
+        "sync": false
+    },
+    "git.postCommitCommand": "sync",
+    "java.configuration.updateBuildConfiguration": "automatic"
+}
\ No newline at end of file
diff --git a/.vscode/workspace.code-workspace b/.vscode/workspace.code-workspace
index 4949532..8580c79 100644
--- a/.vscode/workspace.code-workspace
+++ b/.vscode/workspace.code-workspace
@@ -5,20 +5,15 @@
     }
   ],
   "settings":{
-    "workbench.startupEditor": "none",
     "files.exclude":{
       "workspace":true
     },
     "java.configuration.updateBuildConfiguration":"automatic",
     "java.format.settings.profile":"GoogleStyle",
     "java.format.settings.url":"https://gist.github.com/sualeh/470c0954b597f1c717baa1ae64a80013",
-    "editor.tabSize": 2,
+    "editor.tabSize":2,
     "editor.foldingImportsByDefault": true,
-    "files.trimTrailingWhitespace": true,
-    "git.enableCommitSigning": true,
-    "git.autofetch": true,
-    "workbench.editorAssociations": {
-      "*.md": "vscode.markdown.preview.editor"
-    },
+    "files.trimTrailingWhitespace":true,
+    "git.enableCommitSigning":true
   }
 }
diff --git a/pom.xml b/pom.xml
index 6b90fde..ae19624 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,12 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="https://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>us.fatehi</groupId>
-  <artifactId>magnetictrackparser</artifactId>
+  <artifactId>creditcardnumber</artifactId>
   <version>4.0.4</version>
   <packaging>jar</packaging>
   <name>Magnetic Track Parser</name>
-  <description>Magnetic Track Parser is a library that can parse magnetic tracks from a bank issued card. All classes are immutable and thread-safe. The standard `toString()` function formats data in a readable form.</description>
+  <description>Magnetic Track Parser is a library that can parse magnetic tracks from a 
+    bank issued credit card. All classes are immutable and thread-safe. 
+    The standard `toString()` function formats data in a readable form.</description>
   <url>https://github.com/sualeh/magnetictrackparser</url>
   <licenses>
     <license>
@@ -177,9 +181,7 @@
         <configuration>
           <source>8</source>
           <target>8</target>
-          <compilerArgs>
-            <arg>-Werror</arg>
-          </compilerArgs>
+          <encoding>UTF-8</encoding>
         </configuration>
       </plugin>
       <plugin>