public GitCheckoutResponse checkout(File repositoryPath, Ref ref, List<File> paths)
      throws JavaGitException, IOException {
    CheckUtilities.checkFileValidity(repositoryPath);
    if ( ref != null && ( ref.getRefType() != RefType.BRANCH && ref.getRefType() != RefType.SHA1) ) {
      throw new JavaGitException(100000, ExceptionMessageMap.getMessage("100000")
          + " RefType passed: " + ref.getRefType());
    }
    CheckUtilities.checkNullListArgument(paths, "List of files");
    IClient client = ClientManager.getInstance().getPreferredClient();
    IGitCheckout gitCheckout = client.getGitCheckoutInstance();
    return gitCheckout.checkout(repositoryPath, ref, paths);
  }
public GitCheckoutResponse checkout(File repositoryPath, Ref ref, List<File> paths)
      throws JavaGitException, IOException {
    CheckUtilities.checkFileValidity(repositoryPath);
    if ( ref != null && ( ref.getRefType() != RefType.BRANCH && ref.getRefType() != RefType.SHA1) ) {
      throw new JavaGitException(100000, ExceptionMessageMap.getMessage("100000")
          + " RefType passed: " + ref.getRefType());
    }
    CheckUtilities.checkNullListArgument(paths, "List of files");
    IClient client = ClientManager.getInstance().getPreferredClient();
    IGitCheckout gitCheckout = client.getGitCheckoutInstance();
    return gitCheckout.checkout(repositoryPath, ref, paths);
  }
public GitCheckoutResponse checkout ( File repositoryPath , Ref ref , List < File > paths ) throws JavaGitException , IOException { CheckUtilities . checkFileValidity ( repositoryPath ) ; if ( ref != null && ( ref . getRefType ( ) != RefType . BRANCH && ref . getRefType ( ) != RefType . SHA1 ) ) { throw new JavaGitException ( 100000 , ExceptionMessageMap . getMessage ( "100000" ) + " RefType passed: " + ref . getRefType ( ) ) ; } CheckUtilities . checkNullListArgument ( paths , "List of files" ) ; IClient client = ClientManager . getInstance ( ) . getPreferredClient ( ) ; IGitCheckout gitCheckout = client . getGitCheckoutInstance ( ) ; return gitCheckout . checkout ( repositoryPath , ref , paths ) ; }
Checks out files from the repository when a tree-ish object is given as the reference.

@param repositoryPath
Path to the Git repository.
@param ref
A branch, or sha1 object.
@param paths
<code>List</code> of file paths that are to be checked out.
@return <code>GitCheckoutResponse</code> object
@throws JavaGitException
Thrown if -
<li>the output for &lt;git-checkout&gt; command generated an error.</li>
<li>processBuilder not able to run the command.</li>
</ul>
@throws IOException
Thrown if -
<ul>
<li>paths given do not have proper permissions.</li>
<li>paths given do not exist at all.</li>
</ul>
Checks out files from the repository when a tree - ish object is given as the reference .