Program: 111099
Project: 111099
Buggy source:
private void createDockerFile(final String directory,final List<String> filesToAdd) throws IOException {
  final List<String> commands=newArrayList();
  if (baseImage != null) {
    commands.add("String_Node_Str" + baseImage);
  }
  if (maintainer != null) {
    commands.add("String_Node_Str" + maintainer);
  }
  if (env != null) {
    final List<String> sortedKeys=Ordering.natural().sortedCopy(env.keySet());
    for (    String key : sortedKeys) {
      final String value=env.get(key);
      commands.add(String.format("String_Node_Str",key,value));
    }
  }
  if (workdir != null) {
    commands.add("String_Node_Str" + workdir);
  }
  for (  String file : filesToAdd) {
    commands.add(String.format("String_Node_Str",file,normalizeDest(file)));
  }
  if (runList != null && !runList.isEmpty()) {
    if (squashRunCommands) {
      commands.add("String_Node_Str" + Joiner.on("String_Node_Str").join(runList));
    }
 else {
      for (      final String run : runList) {
        commands.add("String_Node_Str" + run);
      }
    }
  }
  if (exposesSet.size() > 0) {
    commands.add("String_Node_Str" + Joiner.on("String_Node_Str").join(exposesSet));
  }
  if (user != null) {
    commands.add("String_Node_Str" + user);
  }
  if (entryPoint != null) {
    commands.add("String_Node_Str" + entryPoint);
  }
  if (cmd != null) {
    if (entryPoint != null) {
      if (cmd.startsWith("String_Node_Str") && cmd.endsWith("String_Node_Str")) {
        commands.add("String_Node_Str" + cmd);
      }
 else {
        final List<String> args=ImmutableList.copyOf(Splitter.on(WHITESPACE).omitEmptyStrings().split(cmd));
        final StringBuilder cmdBuilder=new StringBuilder("String_Node_Str");
        for (        String arg : args) {
          cmdBuilder.append('"').append(arg).append('"');
        }
        cmdBuilder.append(']');
        final String cmdString=cmdBuilder.toString();
        commands.add("String_Node_Str" + cmdString);
        getLog().warn("String_Node_Str" + "String_Node_Str");
        getLog().warn("String_Node_Str" + cmdString);
      }
    }
 else {
      commands.add("String_Node_Str" + cmd);
    }
  }
  if (volumes != null) {
    for (    String volume : volumes) {
      commands.add("String_Node_Str" + volume);
    }
  }
  if (labels != null) {
    for (    String label : labels) {
      commands.add("String_Node_Str" + label);
    }
  }
  getLog().debug("String_Node_Str" + System.lineSeparator() + Joiner.on(System.lineSeparator()).join(commands));
  Files.createDirectories(Paths.get(directory));
  Files.write(Paths.get(directory,"String_Node_Str"),commands,UTF_8);
}

Fixed version (ground truth):
private void createDockerFile(final String directory,final List<String> filesToAdd) throws IOException {
  final List<String> commands=newArrayList();
  if (baseImage != null) {
    commands.add("String_Node_Str" + baseImage);
  }
  if (maintainer != null) {
    commands.add("String_Node_Str" + maintainer);
  }
  if (env != null) {
    final List<String> sortedKeys=Ordering.natural().sortedCopy(env.keySet());
    for (    final String key : sortedKeys) {
      final String value=env.get(key);
      commands.add(String.format("String_Node_Str",key,value));
    }
  }
  if (workdir != null) {
    commands.add("String_Node_Str" + workdir);
  }
  for (  final String file : filesToAdd) {
    commands.add(String.format("String_Node_Str",file,normalizeDest(file)));
  }
  if (runList != null && !runList.isEmpty()) {
    if (squashRunCommands) {
      commands.add("String_Node_Str" + Joiner.on("String_Node_Str").join(runList));
    }
 else {
      for (      final String run : runList) {
        commands.add("String_Node_Str" + run);
      }
    }
  }
  if (exposesSet.size() > 0) {
    commands.add("String_Node_Str" + Joiner.on("String_Node_Str").join(exposesSet));
  }
  if (user != null) {
    commands.add("String_Node_Str" + user);
  }
  if (entryPoint != null) {
    commands.add("String_Node_Str" + entryPoint);
  }
  if (cmd != null) {
    if (entryPoint != null) {
      if (cmd.startsWith("String_Node_Str") && cmd.endsWith("String_Node_Str")) {
        commands.add("String_Node_Str" + cmd);
      }
 else {
        final List<String> args=ImmutableList.copyOf(Splitter.on(WHITESPACE).omitEmptyStrings().split(cmd));
        final StringBuilder cmdBuilder=new StringBuilder("String_Node_Str");
        for (        final String arg : args) {
          cmdBuilder.append('"').append(arg).append('"');
        }
        cmdBuilder.append(']');
        final String cmdString=cmdBuilder.toString();
        commands.add("String_Node_Str" + cmdString);
        getLog().warn("String_Node_Str" + "String_Node_Str");
        getLog().warn("String_Node_Str" + cmdString);
      }
    }
 else {
      commands.add("String_Node_Str" + cmd);
    }
  }
  if (volumes != null) {
    for (    final String volume : volumes) {
      commands.add("String_Node_Str" + volume);
    }
  }
  if (labels != null) {
    for (    final String label : labels) {
      commands.add("String_Node_Str" + label);
    }
  }
  getLog().debug("String_Node_Str" + System.lineSeparator() + Joiner.on(System.lineSeparator()).join(commands));
  Files.createDirectories(Paths.get(directory));
  Files.write(Paths.get(directory,"String_Node_Str"),commands,UTF_8);
}