code: public void execute() throws MojoExecutionException {
          if (!isSkip()){
              final LDAPConnection connection = connect();
              try {
                  for (final Source source : sources) {
                      try {
                          getLog().info("Processing input source: " + source);
                          final FormatHandler handler = getFormatHandler(source);
                          if (handler == null) {
                              getLog().warn("No handler for input source: " + source);
                          } else {
                              final InputStream inputStream = source.open();
                              if (inputStream == null) {
                                  if (!this.continueOnError) {
                                      throw new MojoExecutionException("Cannot open source for reading: " + source);
                                  } else {
                                      getLog().warn("Skipping source that could not be opened for reading: " + source);
                                  }
                              } else {
                                  try {
                                      handler.load(connection, source.open(), continueOnError, this);
                                  } finally {
                                      inputStream.close();
                                  }
                              }
                          }
                      } catch (final IOException e) {
                          if (!this.continueOnError) {
                              throw new MojoExecutionException("Error closing input source: " + source, e);
                          } else {
                              this.getLog().warn("Ignoring error closing input source: " + source, e);
                          }
                      }
                  }
              } finally {
                  connection.close();
              }
          }
      }
docs: Execute the plugin goal iterating over the list of source files and loading the LDAP directory entries from
  each file using the appropriate handler.
  
  @throws MojoExecutionException If there was an error executing the plugin goal.