How to use

checkCallable

method

in

org.eclipse.jgit.api.DeleteBranchCommand

  /**
   * Set whether to forcefully delete branches
   *
   * @param force
   *            <code>true</code> corresponds to the -D option,
   *            <code>false</code> to the -d option (default) <br>
   *            if <code>false</code> a check will be performed whether the
   *            branch to be deleted is already merged into the current branch
   *            and deletion will be refused in this case
   * @return this instance
   */
  public DeleteBranchCommand setForce(boolean force) {
    checkCallable();
    this.force = force;
    return this;
  }
}

/**
 * Set the names of the branches to delete
 *
 * @param branchnames
 *            the names of the branches to delete; if not set, this will do
 *            nothing; invalid branch names will simply be ignored
 * @return this instance
 */
public DeleteBranchCommand setBranchNames(String... branchnames) {
  checkCallable();
  this.branchNames.clear();
  for (String branch : branchnames)
    this.branchNames.add(branch);
  return this;
}

public List<String> call() throws GitAPIException,
    NotMergedException, CannotDeleteCurrentBranchException {
  checkCallable();
  List<String> result = new ArrayList<>();
  if (branchNames.isEmpty())

  /**
   * @param force
   *            <code>true</code> corresponds to the -D option,
   *            <code>false</code> to the -d option (default) <br>
   *            if <code>false</code> a check will be performed whether the
   *            branch to be deleted is already merged into the current branch
   *            and deletion will be refused in this case
   * @return this instance
   */
  public DeleteBranchCommand setForce(boolean force) {
    checkCallable();
    this.force = force;
    return this;
  }
}

  /**
   * Set whether to forcefully delete branches
   *
   * @param force
   *            <code>true</code> corresponds to the -D option,
   *            <code>false</code> to the -d option (default) <br>
   *            if <code>false</code> a check will be performed whether the
   *            branch to be deleted is already merged into the current branch
   *            and deletion will be refused in this case
   * @return this instance
   */
  public DeleteBranchCommand setForce(boolean force) {
    checkCallable();
    this.force = force;
    return this;
  }
}

/**
 * @param branchnames
 *            the names of the branches to delete; if not set, this will do
 *            nothing; invalid branch names will simply be ignored
 * @return this instance
 */
public DeleteBranchCommand setBranchNames(String... branchnames) {
  checkCallable();
  this.branchNames.clear();
  for (String branch : branchnames)
    this.branchNames.add(branch);
  return this;
}

/**
 * Set the names of the branches to delete
 *
 * @param branchnames
 *            the names of the branches to delete; if not set, this will do
 *            nothing; invalid branch names will simply be ignored
 * @return this instance
 */
public DeleteBranchCommand setBranchNames(String... branchnames) {
  checkCallable();
  this.branchNames.clear();
  for (String branch : branchnames)
    this.branchNames.add(branch);
  return this;
}

checkCallable();
List<String> result = new ArrayList<String>();
if (branchNames.isEmpty())

public List<String> call() throws GitAPIException,
    NotMergedException, CannotDeleteCurrentBranchException {
  checkCallable();
  List<String> result = new ArrayList<>();
  if (branchNames.isEmpty())