Updated the docker config with java6 and java7

Dockerfile

-# Use a Debian base image
-FROM debian:buster-slim
+FROM ubuntu:latest
 
-# Update the system and install necessary tools
-RUN apt-get update && apt-get install -y \
+# Install necessary packages for adding repositories
+RUN apt-get update && apt-get upgrade -y && apt-get install -y \
     wget \
     curl \
-    software-properties-common \
     gnupg \
-    && rm -rf /var/lib/apt/lists/*
+    git \    
+    software-properties-common \
+    python3 \
+    python3-pip
 
-# Install OpenJDK 8 and 11 from Debian's package manager
-RUN apt-get update && apt-get install -y openjdk-8-jdk openjdk-11-jdk
+# Add the Temurin repository and install Java
+RUN wget -O - https://packages.adoptium.net/artifactory/api/gpg/key/public | gpg --dearmor > /usr/share/keyrings/temurin-archive-keyring.gpg \
+    && echo "deb [signed-by=/usr/share/keyrings/temurin-archive-keyring.gpg] https://packages.adoptium.net/artifactory/deb/ buster main" | tee /etc/apt/sources.list.d/temurin.list \
+    && apt-get update
 
-# Add AdoptOpenJDK's repository to install Java 20
-RUN wget -O - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | apt-key add - \
-    && add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/ \
-    && apt-get update && apt-get install -y adoptopenjdk-20-hotspot
+# Install OpenJDK 8, 11, and other JDKs as required
+RUN apt-get install -y temurin-8-jdk temurin-11-jdk temurin-21-jdk
 
 # Manually install Java 6 and 7
-COPY jdk-6u45-linux-x64.tar.gz jdk-7u80-linux-x64.tar.gz /tmp/
+COPY lib/java_archives/jdk-6u45-linux-x64.tar.gz lib/java_archives/jdk-7u75-linux-x64.tar.gz /tmp/
 RUN tar -xzf /tmp/jdk-6u45-linux-x64.tar.gz -C /usr/lib/jvm/ && \
-    tar -xzf /tmp/jdk-7u80-linux-x64.tar.gz -C /usr/lib/jvm/ && \
+    tar -xzf /tmp/jdk-7u75-linux-x64.tar.gz -C /usr/lib/jvm/ && \
     update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.6.0_45/bin/java 100 && \
-    update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0_80/bin/java 200
+    update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-se-7u75-ri/bin/java 200
 
 # Cleanup
 RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

docker-compose.yml

 version: '3.8'
 services:
-  myapp:
+  hadoop_analysis_app:
     build:
       context: .
       dockerfile: Dockerfile

src/hadoop_analysis/java_version_manager.py

@@ -33,7 +33,7 @@ def switch_java_version(java_version):
     try:
         # Switch the Java version
         subprocess.run(
-            ["sudo", "update-java-alternatives", "-s", target_version], check=True
+            ["update-java-alternatives", "-s", target_version], check=True
         )
         print(f"Switched to Java version: {target_version}")