code: def _get_from_java_home(self):
          
          # Get the environment variable
          java_home = os.getenv("JAVA_HOME")
          if java_home and os.path.exists(java_home):
              # Get the real installation path
              java_home = os.path.realpath(java_home)
  
              # Cygwin has a bug in realpath
              if not os.path.exists(java_home):
                  java_home = os.getenv("JAVA_HOME")
  
              # Look for the library file
              return self.find_libjvm(java_home)
docs: Retrieves the Java library path according to the JAVA_HOME environment
          variable
  
          :return: The path to the JVM library, or None