I want to load an external library (eg:Lic64bit) which contains some DLL files inside it to JVM at runtime. Can’t use Reflection and FFM (Java Foreign Function Memory API) as well.
I tried with some ways and still not loading the library properly.
Finally I found that there is a private static final variable called JAVA_LIBRARY_PATH. So that I can’t modify that as it is a final variable.

Already tried the below implementation.

private static void loadAllDLLs(String libraryPathToAdd) {
    final String[] userPath = initializePath("java.library.path");
    String ps = System.getProperty("path.separator");
    //check if the path to add is already present
    for (String path : userPath) {
      if (path.equals(libraryPathToAdd)) {
        return;
      }
    }

    StringBuilder pathBuilder = new StringBuilder();
    for (String pathToAdd : userPath) {
      pathBuilder.append(pathToAdd).append(ps);
    }
    pathBuilder.append(libraryPathToAdd);

    // Update java.library.path once with all paths
    String finalPath = pathBuilder.toString();
    System.setProperty("java.library.path", finalPath);
   

    String[] newUserPath = initializePath("java.library.path");
    for (String up : newUserPath) {
      System.out.println("New User Path ----> " + up);
    }
}

But then I tried to verify whether the library is successfully loaded using

private static void loadLibraries() {
    String libraryPath = System.getProperty("java.library.path");
    System.out.println("java.library.path: " + libraryPath);

    try {
      System.loadLibrary("webcam-capture-driver-native-64");
      System.out.println("Library loaded successfully.");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Failed to load library: " + e.getMessage());
    }
  }

System.out.println("java.library.path: " + libraryPath); shows that the library containing “webcam-capture-driver-native-64” is added to java.library.path property. But when going to load the library by using System.loadLibrary("webcam-capture-driver-native-64"); There shows the exception as couldn’t find the library.

Does anybody already faced this or have any idea to handle this?