Ubuntu 16.04中Bonnmotion安装：Java二进制路径错误排查

Hey there! Let's work through this Java path issue you're hitting with Bonnmotion on Ubuntu 16.04. Here's how to locate your Java binary and resolve the prompt:

First, let's track down where your Java executable lives—here are the common spots and commands to find it:

• Default OpenJDK locations: Ubuntu 16.04 typically ships with OpenJDK 8, which lives under /usr/lib/jvm/. A common full path would be something like /usr/lib/jvm/java-8-openjdk-amd64/bin/java.
• Manual Oracle JDK installs: If you installed Oracle JDK manually, it might be in /opt/java/ or /usr/local/java/, e.g., /opt/java/jdk1.8.0_291/bin/java.
• Use terminal commands to find it automatically:
  1. Run which java—this will show the system's default Java symlink (usually /usr/bin/java).
  2. To get the actual binary path behind the symlink, run readlink -f $(which java). Copy the output of this command—this is your real Java binary path.

Let's make sure Java is set up correctly and configure Bonnmotion to use it:

1. Verify Java is installed:
   Run java -version in your terminal. If you see a version number (like openjdk version "1.8.0_382"), Java is installed. If you get a "command not found" error, install OpenJDK 8 first with:

   sudo apt-get update && sudo apt-get install openjdk-8-jdk
   

2. Provide the path to Bonnmotion:
   When the terminal prompts please enter Java Binary path, just paste the path you copied from readlink -f $(which java) and hit Enter. Bonnmotion should now launch.
3. Set the path permanently (optional):
   To avoid entering the path every time, edit the Bonnmotion startup script:
   • Find the bonnmotion script (usually in /usr/local/bin/ or your custom installation directory).
   • Open it with a text editor (e.g., sudo nano /usr/local/bin/bonnmotion).
   • Look for a line starting with JAVA_BIN=—replace the empty value or placeholder with your Java binary path, like:

     JAVA_BIN="/usr/lib/jvm/java-8-openjdk-amd64/bin/java"
     

   • Save the file (Ctrl+O, then Enter in nano) and exit (Ctrl+X). Now Bonnmotion will use this path automatically.
4. Check permissions (if needed):
   If you hit a permission error, ensure the Java binary is executable:

   sudo chmod +x /path/to/your/java/binary
   

Run bonnmotion again—you shouldn't see the Java path prompt anymore, and the program should start normally.

内容的提问来源于stack exchange，提问作者Arvind aru