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How to handle the error message without getting the error in Jenkins result

The below code is throwing ‘stale element reference: element is not attached to the page document’
How to handle error message and show the result as a pass
Action- The below code is adding one image(which can be one or more) which inside another image
public void click_on_the_Add_to_collection_button_displaying_down_below_the_assert() {
List<WebElement> all_colection = driver.findElements(By.xpath("//li//button[#class='icon-button ' and #title='Add To Collection']"));
int collection_size = all_colection.size();
System.out.println("the collection size is " + collection_size);
Random ran = new Random();
all_colection.get(collection_size - 1).click();
crate_new_colection.sendKeys("newcollection#1");
}

Wrap with try..catch like shown below:
public void click_on_the_Add_to_collection_button_displaying_down_below_the_assert() {
try{
List<WebElement> all_colection = driver.findElements(By.xpath("//li//button[#class='icon-button ' and #title='Add To Collection']"));
int collection_size = all_colection.size();
System.out.println("the collection size is " + collection_size);
Random ran = new Random();
all_colection.get(collection_size - 1).click();
crate_new_colection.sendKeys("newcollection#1");
}catch (StaleElementReferenceException e){
System.err.println("Skipping the exception. Do not let it get down stack.");
}
}
P.S. - I kept your snake case unchanged but please do not use Python-like code style in Java.

java.lang.NullPointerException: lock == null from InputStreamReader

So I'm trying to parse an .obj wavefront file to be displayed with OpenGL ES, thing is, I'm getting the Nullpointer as if the file did not exist or was empty (?).
I tried two different ways of getting to parse the file, also made sure there were no empty lines on it, put it in different folders (assets, src root, res, etc...) but the result is the same. Maybe the error I'm getting is more to do with the OpenGL part of the code? But I'm kinda lost, because apparently it should work...
Also tried buffering the file outside the function, same happened. From another question here, the problem the person had, had to do with " trying to update UI from worker Thread ". Async did not help me here.
I got the code idea form this blog: http://etcodehome.blogspot.com/2011/07/android-rendering-3d-blender-models.html
And the file to base my work on from here: https://github.com/MartianIsMe/earth-live-wallpaper/blob/d71902aa642bad0c10fc46d6839ced6e15995f7b/%20earth-live-wallpaper/SLWP/src/com/seb/SLWP/DeathStar.java
fun loadObjFile() {
try {
var str: String
var tmp: Array<String>
var ftmp: Array<String>
var v: Float
val vlist = ArrayList<Float>()
val nlist = ArrayList<Float>()
val fplist = ArrayList<Fp>()
val mContext: Context? = null
//val inb: BufferedReader = File("androidmodel.obj").bufferedReader()
//val inputString = inb.use { it.readText() }
val inb = BufferedReader(InputStreamReader(mContext?.getAssets()?.open
("src/main/res/androidmodel.obj")), 1024) //Error is here at com.example.xxx.MyGLRenderer.loadObjFile
while (inb.readLine().also { str = it } != null) {
tmp = str.split(" ".toRegex()).toTypedArray()
//Parse the vertices
if (tmp[0].equals("v", ignoreCase = true)) {
for (i in 1..3) {
v = tmp[i].toFloat()
vlist.add(v)
}
}
//Parse the vertex normals
if (tmp[0].equals("vn", ignoreCase = true)) {
for (i in 1..3) {
v = tmp[i].toFloat()
nlist.add(v)
}
}
//Parse the faces/indices
if (tmp[0].equals("f", ignoreCase = true)) {
for (i in 1..3) {
ftmp = tmp[i].split("/".toRegex()).toTypedArray()
val chi = ftmp[0].toInt() - 1.toLong()
var cht = 0
if (ftmp[1] != "") cht = ftmp[1].toInt() - 1
val chn = ftmp[2].toInt() - 1
fplist.add(Fp(chi, cht, chn))
}
NBFACES++
}
}
val vbb = ByteBuffer.allocateDirect(fplist.size * 4 * 3)
vbb.order(ByteOrder.nativeOrder())
mVertexBuffer = vbb.asFloatBuffer()
val nbb = ByteBuffer.allocateDirect(fplist.size * 4 * 3)
nbb.order(ByteOrder.nativeOrder())
mNormBuffer = nbb.asFloatBuffer()
for (j in fplist.indices) {
mVertexBuffer?.put(vlist[(fplist[j].Vi * 3).toInt()])
mVertexBuffer?.put(vlist[(fplist[j].Vi * 3 + 1).toInt()])
mVertexBuffer?.put(vlist[(fplist[j].Vi * 3 + 2).toInt()])
mNormBuffer?.put(nlist[fplist[j].Ni * 3])
mNormBuffer?.put(nlist[fplist[j].Ni * 3 + 1])
mNormBuffer?.put(nlist[fplist[j].Ni * 3 + 2])
}
mIndexBuffer = CharBuffer.allocate(fplist.size)
for (j in fplist.indices) {
mIndexBuffer?.put(j.toChar())
}
mVertexBuffer?.position(0)
mNormBuffer?.position(0)
mIndexBuffer?.position(0)
} catch (e: IOException) {
e.printStackTrace()
}
}
private class Fp
(var Vi: Long, var Ti: Int, var Ni: Int)

The problem is that you pass null into InputStreamReader. The path to the asset is wrong.
First of all the file should be located under assets directory that is positioned on the same level in directory hierarchy as the java and res folder.
Second, you should pass path relative to the assets directory. So if your file is located directly under assets then the relative path is "androidmodel.obj". Thus, creating input stream will look like this:
InputStreamReader(mContext?.getAssets()?.open("androidmodel.obj"))
But I strongly recommend you to check for non-null because if mContext is null - the issue will return.
mContext?.getAssets()?.open("androidmodel.obj")?.let { nonNullAsset ->
InputStreamReader(nonNullAsset)
}
This part is crucial ?.let { as it runs the let function only if the object is not null.
If there is no assets directory, just create it as a simple directory and it will be picked up by IDE automatically:
Update
As the NPE still occurs the only reason left is the null value in mContext variable. Make sure it is initialized.
And after a little bit more digging, I can say that this was the issue from the beginning. Any attempt to pass the wrong path of a file to the assets.open(fileName) function will result in FileNotFoundException. Thus, even though the path you use is wrong you did not even reach the point of opening a file as the context is null.

Bukkit ProtocolLib Nametags

I am trying to change the name above a players entity. I have successfully done this but it has a side effect of changeing the players skin to the default. How can I change the player's nametag without resetting their skin.
Plugin Librarys Used
ProtocolLib
PacketWrapper
Code used to change name
public void changeNameOnHead(Player player, String name) {
PlayerInfoData pid = new
PlayerInfoData(WrappedGameProfile.fromPlayer(player), 1,
EnumWrappers.NativeGameMode.SURVIVAL,
WrappedChatComponent.fromText(player.getName()));
WrapperPlayServerPlayerInfo wpspi = new WrapperPlayServerPlayerInfo();
wpspi.setAction(EnumWrappers.PlayerInfoAction.REMOVE_PLAYER);
wpspi.setData(Collections.singletonList(pid));
for (Player p: Bukkit.getOnlinePlayers()) {
if (p.equals(player)) {
continue;
}
p.hidePlayer(player);
wpspi.sendPacket(p);
}
ProtocolLibrary.getProtocolManager().addPacketListener(
new PacketAdapter(RoleplayEngine.Instance,
PacketType.Play.Server.PLAYER_INFO) {
#Override
public void onPacketSending(PacketEvent event) {
if (event.getPacket().getPlayerInfoAction().read(0) != EnumWrappers.PlayerInfoAction.ADD_PLAYER) {
return;
}
PlayerInfoData pid =
event.getPacket().getPlayerInfoDataLists().read(0).get(0);
if (pid.getProfile().getUUID() !=
player.getUniqueId()) return;
PlayerInfoData newPid = new PlayerInfoData(
pid.getProfile().withName(name),
pid.getPing(),
pid.getGameMode(),
WrappedChatComponent.fromText(name)
);
event.getPacket().getPlayerInfoDataLists().write(0,
Collections.singletonList(newPid));
}
}
);
for (Player p: Bukkit.getOnlinePlayers()) {
if (p.equals(player)) {
continue;
}
p.showPlayer(player);
}
}

You can try to use this library available in github to change the player's name and skin.
Quick example of usage:
PlayerDisplayModifier p = new PublicDisplayModifier(plugin);
p.changeDisplay(myPlayer, "SkinPlayer", "NewName");
This works if your server is 1.8 and lower, not sure if it works on higher versions.
If your server version is higher than 1.8, you can try using NickNamerIntegratedApi, a plugin that also has an API for devs. It's open sourced, so you can probably dig for the piece of code that makes the nick change possible
Lastly, you can also try to use md-5's iTAG, and a good fork of it by ataranlen

Apache Commons - NNTP - "Article To List" - AWT

I am currently using Apache Commons Net to develop my own NNTP reader. Using the tutorial available I was able to use some of their code to allow me to get articles back.
The Code I am using from NNTP Section -
System.out.println("Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]");
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
System.out.println("Building message thread tree...");
Threader threader = new Threader();
Article root = (Article)threader.thread(articles);
Article.printThread(root, 0);
I need to take the articles and turn them into a List type so I can send them to AWT using something like this -
List x = (List) b.GetGroupList(dog);
f.add(CreateList(x));
My Entire code Base for this section is -
public void GetThreadList(String Search) throws SocketException, IOException {
String hostname = USE_NET_HOST;
String newsgroup = Search;
NNTPClient client = new NNTPClient();
client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
client.connect(hostname);
client.authenticate(USER_NAME, PASS_WORD);
if(!client.authenticate(USER_NAME, PASS_WORD)) {
System.out.println("Authentication failed for user " + USER_NAME + "!");
System.exit(1);
}
String fmt[] = client.listOverviewFmt();
if (fmt != null) {
System.out.println("LIST OVERVIEW.FMT:");
for(String s : fmt) {
System.out.println(s);
}
} else {
System.out.println("Failed to get OVERVIEW.FMT");
}
NewsgroupInfo group = new NewsgroupInfo();
client.selectNewsgroup(newsgroup, group);
long lowArticleNumber = group.getFirstArticleLong();
long highArticleNumber = lowArticleNumber + 5000;
System.out.println("Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]");
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
System.out.println("Building message thread tree...");
Threader threader = new Threader();
Article root = (Article)threader.thread(articles);
Article.printThread(root, 0);
try {
if (client.isConnected()) {
client.disconnect();
}
}
catch (IOException e) {
System.err.println("Error disconnecting from server.");
e.printStackTrace();
}
}
and -
public void CreateFrame() throws SocketException, IOException {
// Make a new program view
Frame f = new Frame("NNTP Reader");
// Pick my layout
f.setLayout(new GridLayout());
// Set the size
f.setSize(H_SIZE, V_SIZE);
// Make it resizable
f.setResizable(true);
//Create the menubar
f.setMenuBar(CreateMenu());
// Create the lists
UseNetController b = new UseNetController(NEWS_SERVER_CREDS);
String dog = "*";
List x = (List) b.GetGroupList(dog);
f.add(CreateList(x));
//f.add(CreateList(y));
// Add Listeners
f = CreateListeners(f);
// Show the program
f.setVisible(true);
}
I just want to take my list of returned news articles and send them to the display in AWT. Can any one explain to me how to turn those Articles into a list?

Welcome to the DIY newsreader club. I'm not sure if you are trying to get a list of newsgroups on the server, or articles.You have already have your Articles in an Iterable Collection. Iterate through it appending what you want in the list from each article. You probably aren't going to want to display the whole article body in a list view. More likely the message id, subject, author or date (or combination as a string). For example for a List of just subjects:
...
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
Iterator<Article> it = articles.iterator();
while(it.hasNext()) {
Article thisone = it.next();
MyList.add(thisone.getSubject());
//MyList should have been declared up there somewhere ^^^ and
//your GetThreadList method must include List in the declaration
}
return MyList;
...
My strategy has been to retrieve the articles via an iterator in to an SQLite database with the body, subject, references etc. stored in fields. Then you can create a list sorted just how you want, with a link by primary key to retrieve what you need for individual articles as you display them. Another strategy would be an array of message_ids or article numbers and fetch each one individually from the news server as required. Have fun - particularly when you are coding for Android and want to display a list of threaded messages in the correct sequence with suitable indents and markers ;). In fact, you can learn a lot by looking at the open source Groundhog newsreader project (to which I am eternally grateful).
http://bazaar.launchpad.net/~juanjux/groundhog/trunk/files/head:/GroundhogReader/src/com/almarsoft/GroundhogReader

Detect SDCard in Blackberry [duplicate]

I want to openOrCreate database in SDcard / Media Card. When i run the application in device (BlackBerry Curve 8900), i find only one root i.e "system/" and running application in simulator (9500), i find three roots as shown in comment in code. I am getting error at;
_db = DatabaseFactory.openOrCreate(_uri);
(error: Method "toString" with signature "()Ljava/lang/String;" is not applicable on this object)
And i am not able to understand what is this error about.
Here is the code.
public void getValues() throws Exception
{
boolean sdCardPresent = false;
String root = null;
Enumeration e = FileSystemRegistry.listRoots();
while (e.hasMoreElements())
{
root = (String)e.nextElement();
System.out.println("Value of root::" +root); // value of root = "system/" when run in device and
// value of root = "store/" "SDCard/" "system/" when run in simulator
if(root.equalsIgnoreCase("system/"))
{
sdCardPresent = true;
}
}
System.out.println("--------------------getValues()----------------------------------");
URI _uri = URI.create(Global.DB_PATH + Global.DB_Main);
System.out.println("Valud of uri::" +_uri);
_db = DatabaseFactory.openOrCreate(_uri); //getting error here.
System.out.println("Valud of _db::" +_db);
_db.close();
I tried these three paths, getting output with "/store"(when run in simulator) but error with rest two paths.Even using "/store" in device is showing the same error.
Global.DB_PATH = "/MediaCard/databases/";
Global.DB_PATH = "/SDCard/databases/";
Global.DB_PATH = "/store/databases/";
Is there any way how to get SDCard/Media Card as root so that i can copy the database in there?

My guess is when you are running your app on a real device you have USB cable plugged in to the device. If this is the case, try to unplug the cable and rerun the app. You may use Dialog.inform() to quickly check what roots you get this time.

private ObjectListField getFileList() {
if (fileList == null) {
fileList = new ObjectListField();
String[] roots = new String[3];
Enumeration enum = FileSystemRegistry.listRoots();
int x = 0;
while (enum.hasMoreElements()) {
if (x < 3) {
roots[x] = enum.nextElement().toString();
}
x++;
}
enum = FileSystemRegistry.listRoots();
fileList.set((roots[2] != null) ? roots : new String[]{"system/", "SDCard/", "store/"});
}
return fileList;
}
Try this code.