Program: 8173
Project: 8173
Buggy source:
@Override protected void processInput(String input){
  if (input.equals("String_Node_Str")) {
    userStats.requestCurrentStats();
  }
 else   if (input.equals("String_Node_Str")) {
    userStats.storeStats();
  }
 else   if (input.equals("String_Node_Str")) {
    int numFiles=remoteStorage.getFileCount();
    System.out.println("String_Node_Str" + numFiles);
    for (int i=0; i < numFiles; i++) {
      int[] sizes=new int[1];
      String name=remoteStorage.getFileNameAndSize(i,sizes);
      boolean exists=remoteStorage.fileExists(name);
      System.out.println("String_Node_Str" + i + "String_Node_Str"+ name+ "String_Node_Str"+ sizes[0]+ "String_Node_Str"+ (exists ? "String_Node_Str" : "String_Node_Str"));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String path=input.substring("String_Node_Str".length());
    File file=new File(path);
    try {
      FileInputStream in=new FileInputStream(file);
      SteamUGCFileWriteStreamHandle remoteFile=remoteStorage.fileWriteStreamOpen(path);
      if (remoteFile != null) {
        byte[] bytes=new byte[1024];
        int bytesRead;
        while ((bytesRead=in.read(bytes,0,bytes.length)) > 0) {
          ByteBuffer buffer=ByteBuffer.allocateDirect(bytesRead);
          buffer.put(bytes,0,bytesRead);
          remoteStorage.fileWriteStreamWriteChunk(remoteFile,buffer,buffer.limit());
        }
        remoteStorage.fileWriteStreamClose(remoteFile);
      }
    }
 catch (    IOException e) {
      e.printStackTrace();
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String path=input.substring("String_Node_Str".length());
    if (remoteStorage.fileDelete(path)) {
      System.out.println("String_Node_Str" + path + "String_Node_Str");
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    remoteStorage.fileShare(input.substring("String_Node_Str".length()));
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] paths=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (paths.length >= 2) {
      System.out.println("String_Node_Str" + paths[0] + "String_Node_Str"+ paths[1]);
      remoteStorage.publishWorkshopFile(paths[0],paths[1],utils.getAppID(),"String_Node_Str","String_Node_Str",SteamRemoteStorage.PublishedFileVisibility.Private,null,SteamRemoteStorage.WorkshopFileType.Community);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] paths=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (paths.length >= 3) {
      System.out.println("String_Node_Str" + paths[0] + "String_Node_Str"+ paths[1]+ "String_Node_Str"+ paths[2]);
      SteamPublishedFileID fileID=new SteamPublishedFileID(Long.parseLong(paths[0]));
      SteamPublishedFileUpdateHandle updateHandle=remoteStorage.createPublishedFileUpdateRequest(fileID);
      if (updateHandle != null) {
        remoteStorage.updatePublishedFileFile(updateHandle,paths[1]);
        remoteStorage.updatePublishedFilePreviewFile(updateHandle,paths[2]);
        remoteStorage.updatePublishedFileTitle(updateHandle,"String_Node_Str");
        remoteStorage.updatePublishedFileDescription(updateHandle,"String_Node_Str");
        remoteStorage.commitPublishedFileUpdate(updateHandle);
      }
    }
  }
 else   if (input.equals("String_Node_Str")) {
    SteamUGCQuery query=ugc.createQueryUserUGCRequest(user.getSteamID().getAccountID(),SteamUGC.UserUGCList.Subscribed,SteamUGC.MatchingUGCType.UsableInGame,SteamUGC.UserUGCListSortOrder.TitleAsc,utils.getAppID(),utils.getAppID(),1);
    if (query.isValid()) {
      System.out.println("String_Node_Str" + query.toString());
      ugc.sendQueryUGCRequest(query);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String name=input.substring("String_Node_Str".length());
    SteamUGCHandle handle=new SteamUGCHandle(Long.parseLong(name,16));
    remoteStorage.ugcDownload(handle,0);
  }
 else   if (input.startsWith("String_Node_Str")) {
    String name=input.substring("String_Node_Str".length());
    userStats.findLeaderboard(name);
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] params=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (currentLeaderboard != null && params.length >= 2) {
      userStats.downloadLeaderboardEntries(currentLeaderboard,SteamUserStats.LeaderboardDataRequest.Global,Integer.valueOf(params[0]),Integer.valueOf(params[1]));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String score=input.substring("String_Node_Str".length());
    if (currentLeaderboard != null) {
      System.out.println("String_Node_Str" + score + "String_Node_Str"+ currentLeaderboard.toString());
      userStats.uploadLeaderboardScore(currentLeaderboard,SteamUserStats.LeaderboardUploadScoreMethod.KeepBest,Integer.valueOf(score));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String appId=input.substring("String_Node_Str".length());
    boolean subscribed=apps.isSubscribedApp(Long.parseLong(appId));
    System.out.println("String_Node_Str" + appId + "String_Node_Str"+ (subscribed ? "String_Node_Str" : "String_Node_Str"));
  }
}

Fixed version (ground truth):
@Override protected void processInput(String input) throws SteamException {
  if (input.equals("String_Node_Str")) {
    userStats.requestCurrentStats();
  }
 else   if (input.equals("String_Node_Str")) {
    userStats.storeStats();
  }
 else   if (input.equals("String_Node_Str")) {
    int numFiles=remoteStorage.getFileCount();
    System.out.println("String_Node_Str" + numFiles);
    for (int i=0; i < numFiles; i++) {
      int[] sizes=new int[1];
      String name=remoteStorage.getFileNameAndSize(i,sizes);
      boolean exists=remoteStorage.fileExists(name);
      System.out.println("String_Node_Str" + i + "String_Node_Str"+ name+ "String_Node_Str"+ sizes[0]+ "String_Node_Str"+ (exists ? "String_Node_Str" : "String_Node_Str"));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String path=input.substring("String_Node_Str".length());
    File file=new File(path);
    try {
      FileInputStream in=new FileInputStream(file);
      SteamUGCFileWriteStreamHandle remoteFile=remoteStorage.fileWriteStreamOpen(path);
      if (remoteFile != null) {
        byte[] bytes=new byte[1024];
        int bytesRead;
        while ((bytesRead=in.read(bytes,0,bytes.length)) > 0) {
          ByteBuffer buffer=ByteBuffer.allocateDirect(bytesRead);
          buffer.put(bytes,0,bytesRead);
          remoteStorage.fileWriteStreamWriteChunk(remoteFile,buffer,buffer.limit());
        }
        remoteStorage.fileWriteStreamClose(remoteFile);
      }
    }
 catch (    IOException e) {
      e.printStackTrace();
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String path=input.substring("String_Node_Str".length());
    if (remoteStorage.fileDelete(path)) {
      System.out.println("String_Node_Str" + path + "String_Node_Str");
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    remoteStorage.fileShare(input.substring("String_Node_Str".length()));
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] paths=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (paths.length >= 2) {
      System.out.println("String_Node_Str" + paths[0] + "String_Node_Str"+ paths[1]);
      remoteStorage.publishWorkshopFile(paths[0],paths[1],utils.getAppID(),"String_Node_Str","String_Node_Str",SteamRemoteStorage.PublishedFileVisibility.Private,null,SteamRemoteStorage.WorkshopFileType.Community);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] paths=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (paths.length >= 3) {
      System.out.println("String_Node_Str" + paths[0] + "String_Node_Str"+ paths[1]+ "String_Node_Str"+ paths[2]);
      SteamPublishedFileID fileID=new SteamPublishedFileID(Long.parseLong(paths[0]));
      SteamPublishedFileUpdateHandle updateHandle=remoteStorage.createPublishedFileUpdateRequest(fileID);
      if (updateHandle != null) {
        remoteStorage.updatePublishedFileFile(updateHandle,paths[1]);
        remoteStorage.updatePublishedFilePreviewFile(updateHandle,paths[2]);
        remoteStorage.updatePublishedFileTitle(updateHandle,"String_Node_Str");
        remoteStorage.updatePublishedFileDescription(updateHandle,"String_Node_Str");
        remoteStorage.commitPublishedFileUpdate(updateHandle);
      }
    }
  }
 else   if (input.equals("String_Node_Str")) {
    SteamUGCQuery query=ugc.createQueryUserUGCRequest(user.getSteamID().getAccountID(),SteamUGC.UserUGCList.Subscribed,SteamUGC.MatchingUGCType.UsableInGame,SteamUGC.UserUGCListSortOrder.TitleAsc,utils.getAppID(),utils.getAppID(),1);
    if (query.isValid()) {
      System.out.println("String_Node_Str" + query.toString());
      ugc.sendQueryUGCRequest(query);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String name=input.substring("String_Node_Str".length());
    SteamUGCHandle handle=new SteamUGCHandle(Long.parseLong(name,16));
    remoteStorage.ugcDownload(handle,0);
  }
 else   if (input.startsWith("String_Node_Str")) {
    String name=input.substring("String_Node_Str".length());
    userStats.findLeaderboard(name);
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] params=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (currentLeaderboard != null && params.length >= 2) {
      userStats.downloadLeaderboardEntries(currentLeaderboard,SteamUserStats.LeaderboardDataRequest.Global,Integer.valueOf(params[0]),Integer.valueOf(params[1]));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String score=input.substring("String_Node_Str".length());
    if (currentLeaderboard != null) {
      System.out.println("String_Node_Str" + score + "String_Node_Str"+ currentLeaderboard.toString());
      userStats.uploadLeaderboardScore(currentLeaderboard,SteamUserStats.LeaderboardUploadScoreMethod.KeepBest,Integer.valueOf(score));
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String appId=input.substring("String_Node_Str".length());
    boolean subscribed=apps.isSubscribedApp(Long.parseLong(appId));
    System.out.println("String_Node_Str" + appId + "String_Node_Str"+ (subscribed ? "String_Node_Str" : "String_Node_Str"));
  }
}