Interface CommandLauncher

    • Method Detail

      • exec

        Process exec​(CommandLine cmd,
                     Map<String,​String> env)
              throws IOException
        Launches the given command in a new process.
        Parameters:
        cmd - The command to execute
        env - The environment for the new process. If null, the environment of the current process is used.
        Returns:
        the newly created process
        Throws:
        IOException - if attempting to run a command in a specific directory
      • exec

        Process exec​(CommandLine cmd,
                     Map<String,​String> env,
                     File workingDir)
              throws IOException
        Launches the given command in a new process, in the given working directory.
        Parameters:
        cmd - The command to execute
        env - The environment for the new process. If null, the environment of the current process is used.
        workingDir - The directory to start the command in. If null, the current directory is used
        Returns:
        the newly created process
        Throws:
        IOException - if trying to change directory
      • isFailure

        boolean isFailure​(int exitValue)
        Checks whether exitValue signals a failure on the current system (OS specific).

        Note that this method relies on the conventions of the OS, it will return false results if the application you are running doesn't follow these conventions. One notable exception is the Java VM provided by HP for OpenVMS - it will return 0 if successful (like on any other platform), but this signals a failure on OpenVMS. So if you execute a new Java VM on OpenVMS, you cannot trust this method.

        Parameters:
        exitValue - the exit value (return code) to be checked
        Returns:
        true if exitValue signals a failure