I only beginning to learn, how to use java with Goole App Engine Standard. I use Eclipse 4.6.3 for that. I created web project and coded some junk, then I decided to try list files at Google Cloud Storage. Here is my code:
public static ArrayList<String> getFilesInBucket(String bucket_name) { /*Line 235*/GcsService gcsService = GcsServiceFactory.createGcsService(RetryParams.getDefaultInstance()); ListResult result = null; try { result = gcsService.list(bucket_name, ListOptions.DEFAULT); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } ArrayList<String> files = new ArrayList<String>(); while (result.hasNext()) { ListItem l = result.next(); if (!l.isDirectory()) files.add(l.getName()); } return files; } This junk works locally, but after I deploy this it stops. I see errors in Google Console:
java.lang.NoClassDefFoundError: com/google/api/client/http/HttpRequestInitializer at MyJunk.getFilesInBucket (ADServlet.java:235) Every jar that is added to lib directory in src is also added into web-inf/lib. 
I also added this jars here: 
I even opened problems tab and quick fixed every "Eclipse warning: XXXXXXXXXXX.jar will not be exported or published." junk by this: 
(This is not my screen).
And yet my code fails at runtime on GAE Standard... What else I can do to solve this?
