Locating Your OpenJDK 21.0.7 Installation on Ubuntu 22.04 | Generated by AI
The java --version command you ran shows that you have OpenJDK 21.0.7 installed on your system, specifically the version packaged for Ubuntu 22.04. This output confirms that the Java Development Kit (JDK) is installed and accessible from your command line.
The location of the Java installation can typically be found by checking where the java binary is located. Since you’re on a Ubuntu-based system, the OpenJDK is likely installed in a standard system directory, such as /usr/lib/jvm/.
To locate the exact path of the Java installation:
- Find the path of the
javabinary: Run the following command in your terminal:which javaThis will likely output something like
/usr/bin/java. This is a symbolic link to the actual Java binary. - Trace the symbolic link to the real location:
Since
/usr/bin/javais usually a symlink, you can find the actual installation directory by running:readlink -f $(which java)This might output something like
/usr/lib/jvm/java-21-openjdk-amd64/bin/java, indicating that the JDK is installed in/usr/lib/jvm/java-21-openjdk-amd64/. - Verify the installation directory:
You can list the contents of the JVM directory to confirm:
ls /usr/lib/jvm/You should see a directory like
java-21-openjdk-amd64or similar, which contains the OpenJDK installation.
Summary
Your Java installation is likely located in /usr/lib/jvm/java-21-openjdk-amd64/ (or a similar directory under /usr/lib/jvm/). The java command you ran is a symlink pointing to the java binary within this directory. If you want to confirm the exact path, use the readlink -f $(which java) command.