Package org.apache.tools.ant.taskdefs.launcher

## Class CommandLauncherProxy

- java.lang.Object
- - org.apache.tools.ant.taskdefs.launcher.CommandLauncher
  - - org.apache.tools.ant.taskdefs.launcher.CommandLauncherProxy

- Direct Known Subclasses:
    `MacCommandLauncher`, `OS2CommandLauncher`, `PerlScriptCommandLauncher`, `ScriptCommandLauncher`, `WinNTCommandLauncher`

      public class CommandLauncherProxy
      extends CommandLauncher

  A command launcher that proxies another command launcher. Sub-classes override exec(args, env, workdir).

- - ### Field Summary

    - ### Fields inherited from class org.apache.tools.ant.taskdefs.launcher.CommandLauncher

      `FILE_UTILS`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor | Description
    --- | --- | ---
    `protected` | `CommandLauncherProxy​(CommandLauncher launcher)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `java.lang.Process` | `exec​(Project project, java.lang.String[] cmd, java.lang.String[] env)` | Launches the given command in a new process.

    - ### Methods inherited from class org.apache.tools.ant.taskdefs.launcher.CommandLauncher

      `exec, getShellLauncher, getVMLauncher, setShellLauncher, setVMLauncher`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### CommandLauncherProxy

          protected CommandLauncherProxy​(CommandLauncher launcher)

  - ### Method Detail

    - #### exec

          public java.lang.Process exec​(Project project,
                                        java.lang.String[] cmd,
                                        java.lang.String[] env)
                                 throws java.io.IOException

      Launches the given command in a new process. Delegates this method to the proxied launcher.
      Overrides:
        `exec` in class `CommandLauncher`
      Parameters:
        `project` - the Ant project.
        `cmd` - the command line to execute as an array of strings.
        `env` - the environment to set as an array of strings.
      Returns:
        the created Process.
      Throws:
        `java.io.IOException` - forwarded from the exec method of the command launcher.