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Nosuchfileexception Error on java while running and trying to load data in Cassandra

I keep getting this error, the path has been specified in yml and even in the console it is going to the relative path but not reading the file or finding it, how can I get past this ?
I have attached the picture and below is the code in my main method. Any input is deeply appreciated. Thanks!
#SpringBootApplication
#EnableConfigurationProperties(DataStaxAstraProperties.class)
public class BookAppApplication {
#Autowired AuthorRepostories authorRepostories;
#Value("${datadump.location.author}")
private String authorDumpsLocation;
#Value("${datadump.location.works}")
private String authorWorksLocation;
public static void main(String[] args) {
SpringApplication.run(BookAppApplication.class, args);
}
private void initAuthors() {
Path path = Paths.get(authorDumpsLocation);
System.out.println(path.toAbsolutePath());
try(Stream<String> lines = Files.lines(path)){
lines.forEach(line->{
String jsonStr = line.substring(line.indexOf("{"));
try {
JSONObject jsonObject = new JSONObject(jsonStr);
Author author = new Author();
author.setName(jsonObject.optString("name"));
author.setPersonalName(jsonObject.optString("personal_name"));
author.setId(jsonObject.optString("key").replace("/authors/",""));
System.out.println("Saving author" + author.getName() + "....");
authorRepostories.save(author);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
private void initWorks() {
}
#PostConstruct
public void start() {
initAuthors();
initWorks();
}
#Bean
public CqlSessionBuilderCustomizer sessionBuilderCustomizer(DataStaxAstraProperties astraProperties) {
Path bundle = astraProperties.getSecureConnectBundle().toPath();
return builder -> builder.withCloudSecureConnectBundle(bundle);
}
}

found the issue. Had to do with access rights. Java couldn't access the files because it was secured after changing the property of a file, it worked.

Why is this Class' object not serialized properly in different processes?

Context
I made a Java application, and need to run two instances of that application, synchronizing some of their attributes via socket each time there's some change. To communicate those changes, Serializable objects are sent through a socket using ObjectStreams (input and output) using read/writeUTF() for an identifier, and read/writeObject() and flush(). The app is the exact same .jar, run twice with some changes like having different ports and ip (if necessary).
Problem
I noticed that objects of some of my classes (e.g. Notification) were sent and received without any troubles, but objects from another class (RegisteredUsers) weren't sent (or received) properly. So I ran some tests to send objects between the two apps and found that the object is being sent and isn't null, it's attribute (a HashMap<String,User>) is also being sent and isn't null, but is always empty.
So I decided to scale it down to what the problem was exactly: I'm trying to write an object through a Stream, and read it in a different process of the same .jar, and with most classes it seems to work, but it doesn't with one.
There seems to be something I'm missing or don't understand about this serialization process, if the object is written and read during the execution of the same process it works, but not if this object is read on another instance of the same app. I even added a HashMap to Notification with the same creation process, but it still works, I really don't get it, what am I missing?
Code
I have taken some code from the bigger app and trimmed it down to the basic problem if anyone wants to test it. To reproduce the errors, run Main1, which will create the two files with an object persisted in each one (one with a Notification object and the other with a RegisteredUsers object) and shows their information, then Main2, which reads them from the files and shows their information, and the problem should be printed. That being that reg3's HashMap is empty and thus neither of the Users are registered.
Main1
public class Main1 {
public static void main(String[] args) {
String regFile = "registry.txt";
String notificationFile = "notification.txt";
Persistence pers = new Persistence();
RegisteredUsers reg1 = new RegisteredUsers();
RegisteredUsers reg2 = new RegisteredUsers();
reg1.register("Name1", "127.0.0.1");
reg1.register("Name2", "127.0.0.1");
try {
pers.writeReg(reg1, regFile);
} catch (IOException e) {
System.out.println("Error writing registry.");
}
try {
reg2 = pers.readReg(regFile);
} catch (IOException e) {
System.out.println("Error reading registry.");
}
System.out.println("Original registry: ");
System.out.println(reg1.isRegistered("Name1") + " " + reg1.isRegistered("Name2"));
System.out.println("Registry read from file: ");
System.out.println(reg2.isRegistered("Name1") + " " + reg2.isRegistered("Name2"));
Notification noti1 = new Notification("Name", "127.0.0.1");
Notification noti2 = new Notification(); //not necesary but it's the way it's done in the bigger app.
try {
pers.writeNotif(noti1, notificationFile);
} catch (IOException e) {
System.out.println("Error writing notification.");
}
try {
noti2 = pers.readNotif(notificationFile);
} catch (IOException e) {
System.out.println("Error reading notification.");
}
System.out.println("Original notification: ");
System.out.println(noti1.getAttributes().get(0) + " " + noti1.getAttributes().get(1));
System.out.println(noti1.getMap());
System.out.println("Notification read from file: ");
System.out.println(noti2.getAttributes().get(0) + " " + noti2.getAttributes().get(1));
System.out.println(noti2.getMap());
}
}
Main2
public class Main2 {
public static void main(String[] args) {
String regFile = "registry.txt";
String notificationFile = "notification.txt";
Persistence pers = new Persistence();
RegisteredUsers reg3 = new RegisteredUsers();
try {
reg3 = pers.readReg(regFile);
} catch (IOException e) {
System.out.println("Error reading registry.");
}
if (reg3 == null) {
System.out.println("reg3 is null");
}
if (reg3.getMap() == null)
System.out.println("reg3 has a null map");
if (reg3.getMap().isEmpty())
System.out.println("reg3 has an empty map");
System.out.println("Registry read from file on another process: ");
System.out.println(reg3.isRegistered("Name1") + " " + reg3.isRegistered("Name2"));
Notification noti3 = new Notification(); //not necesary but it's the way it's done in the bigger app.
try {
noti3 = pers.readNotif(notificationFile);
} catch (IOException e) {
System.out.println("Error reading notification.");
}
System.out.println("Notification read from file on another process: ");
System.out.println(noti3.getAttributes().get(0) + " " + noti3.getAttributes().get(1));
System.out.println(noti3.getMap());
}
}
A Class to persist the objects in the files:
public class Persistence {
public void writeReg(RegisteredUsers regus, String file) throws IOException {
try(FileOutputStream fos = new FileOutputStream(file);
ObjectOutputStream oos = new ObjectOutputStream(fos);) {
oos.writeObject(regus);
oos.flush();
}
}
public RegisteredUsers readReg(String file) throws IOException {
RegisteredUsers regus = null;
try(FileInputStream fis = new FileInputStream(file);
ObjectInputStream ois = new ObjectInputStream(fis);) {
regus = (RegisteredUsers) ois.readObject();
} catch (ClassNotFoundException e) {
System.out.println("Wrong class.");
}
return regus;
}
public void writeNotif(Notification regus, String file) throws IOException {
try(FileOutputStream fos = new FileOutputStream(file);
ObjectOutputStream oos = new ObjectOutputStream(fos);) {
oos.writeObject(regus);
oos.flush();
}
}
public Notification readNotif(String file) throws IOException {
Notification notif = null;
try(FileInputStream fis = new FileInputStream(file);
ObjectInputStream ois = new ObjectInputStream(fis);) {
notif = (Notification) ois.readObject();
} catch (ClassNotFoundException e) {
System.out.println("Wrong class.");
}
return notif;
}
}
RegisteredUsers
public class RegisteredUsers implements Serializable {
private static HashMap<String, User> users;
public RegisteredUsers() {
users = new HashMap<String, User>();
}
public HashMap<String, User> getMap() {
return users;
}
public boolean isRegistered(String name) {
User us = users.get(name);
return us != null;
}
public void register(String name, String ip) {
users.put(name, new User(name, ip, false));
}
}
Notification
public class Notification implements Serializable {
private ArrayList<String> attributes;
private HashMap<String, User> map = new HashMap<>();
public Notification() {
}
public Notification(String name, String ip) {
attributes = new ArrayList<String>();
attributes.add(0, name);
attributes.add(1, ip);
map.put(ip, new User(name, ip, false));
}
public ArrayList<String> getAttributes() {
return attributes;
}
public HashMap<String, User> getMap() {
return map;
}
}
User
public class User implements Serializable {
private String name;
private String ip;
private boolean connection_state;
public User(String name, String ip, boolean connection_state) {
this.name = name;
this.ip = ip;
this.connection_state = connection_state;
}
}

In java static fields are implicitly transient, and transient fields are not serialized.
If you modify the RegisterdUsers to
public class RegisteredUsers implements Serializable {
private HashMap<String, User> users; // static modifier is removed
...
}
The serialization will work.

Guice doesn't initialize property

I'm newly with Guice.
I want to use Guice for initializing object without writing new directly.
Here is my main():
public class VelocityParserTest {
public static void main(String[] args) throws IOException {
try {
PoenaRequestService poenaService = new PoenaRequestService();
System.out.println(poenaService.sendRequest("kbkCode"));
} catch (PoenaServiceException e) {
e.printStackTrace();
}
}
}
PoenaRequestService:
public class PoenaRequestService {
private static final String TEMPLATE_PATH = "resources/xml_messages/bp12/message01.xml";
public static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(PoenaRequestService.class);
#Inject
#Named("poena_service")
private HttpService poenaService;
public String sendRequest(/*TaxPayer taxPayer,*/ String kbk) throws PoenaServiceException {
LOG.info(String.format("Generating poena message request for string: %s", kbk));
Map<String, String> replaceValues = new HashMap<>();
replaceValues.put("guid", "guid");
replaceValues.put("iinbin", "iinbin");
replaceValues.put("rnn", "rnn");
replaceValues.put("taxOrgCode", "taxOrgCode");
replaceValues.put("kbk", "kbk");
replaceValues.put("dateMessage", "dateMessage");
replaceValues.put("applyDate", "applyDate");
ServiceResponseMessage result;
try {
String template = IOUtils.readFileIntoString(TEMPLATE_PATH);
Document rq = XmlUtil.parseDocument(StringUtils.replaceValues(template, replaceValues));
result = poenaService.execute(HttpMethod.POST, null, rq);
} catch (IOException e) {
throw new PoenaServiceException("Unable to read template file: " + TEMPLATE_PATH, e);
} catch (SAXException e) {
throw new PoenaServiceException("Unable to parse result document, please check template file: " + TEMPLATE_PATH, e);
} catch (HttpServiceException e) {
throw new PoenaServiceException(e);
}
if (result.isSuccess()) {
return (String) result.getResult();
}
throw new PoenaServiceException("HTTP service error code '" + result.getStatusCode() + "', message: " + result.getStatusMessage());
}
}
When I tried to debug this I see next picture:
As e result I got NullPointerException.
I couldn't figure out this behavior. Why does this exactly happen?
Any suggestions?

It's not working because you're not actually using Guice. You need to create an injector and bind your dependencies to something. Something akin to this:
public class VelocityParserTest {
public static void main(String[] args) throws IOException {
Injector injector = Guice.createInjector(new AbstractModule() {
#Override
protected void configure() {
bind(PoenaRequestService.class).asEagerSingleton();
bind(HttpService.class)
.annotatedWith(Names.named("poena_service"))
.toInstance(...);
}
});
try {
PoenaRequestService poenaService = injector.getInstance(PoenaRequestService.class);
System.out.println(poenaService.sendRequest("kbkCode"));
} catch (PoenaServiceException e) {
e.printStackTrace();
}
}
}

Invoking an instance method from a REST service method

I have a REST service accepting POST requests. Is there any way I can trigger a method inside my running swing GUI from that service? I want to make it possible to refresh the GUI table of posted data after every POST request is made. Is there any event handling mechanism for doing this?
REST service code:
#POST
#Consumes({OslcMediaType.APPLICATION_RDF_XML, OslcMediaType.APPLICATION_XML, OslcMediaType.APPLICATION_JSON})
#Produces({OslcMediaType.APPLICATION_RDF_XML, OslcMediaType.APPLICATION_XML, OslcMediaType.APPLICATION_JSON})
public Response createServiceRegistration(
#PathParam("serviceProviderId") final String serviceProviderId ,
final ServiceRegistration aServiceRegistration
) throws IOException, ServletException
{
try
{
ServiceRegistration newServiceRegistration = OrchestratorAdaptorManager.createServiceRegistration(httpServletRequest, aServiceRegistration, serviceProviderId);
httpServletResponse.setHeader("ETag", OrchestratorAdaptorManager.getETagFromServiceRegistration(newServiceRegistration));
/////////////////////////////////////////////////////
// Accessing and writing registration data to database
//
try
{
System.out.println("establishing database connection");
Registration registration = new Registration();
registration.createConnection();
registration.insertRegistration(aServiceRegistration.getService().toString(), aServiceRegistration.getTitle(), aServiceRegistration.getLabel());
registration.shutdown();
}
catch(Exception exc)
{
exc.printStackTrace();
throw new RuntimeException("Error inserting ServiceRegistration to the database", exc);
}
//
// Disconnected from the base
///////////////////////////////////////////////////
return Response.created(newServiceRegistration.getAbout()).entity(aServiceRegistration).build();
}
catch (Exception e)
{
e.printStackTrace();
throw new WebApplicationException(e);
}
//Trigger changes in GUI here :/
}
Class which I used to update the table every 10 seconds:
class CheckServices extends TimerTask
{
DefaultTableModel model;
protected CheckServices(DefaultTableModel model)
{
this.model = model;
}
#Override
public void run()
{
Registration reg = new Registration();
try
{
reg.createConnection();
ServiceRegistration[] sr = reg.selectRegistrations();
reg.shutdown();
System.out.println("Adding Registration Resources");
int rows = model.getRowCount();
for(int i = 0; i < rows; i++)
{
model.removeRow(0);
}
for(ServiceRegistration srItem : sr)
{
System.out.println("--> " + srItem.getTitle());
Object[] row = { false , srItem.getService().toString(), srItem.getTitle(), srItem.getLabel()};
model.addRow(row);
}
}
catch (URISyntaxException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

How to retrieve Message and Task body - Exchange Web Services - Java

I am creating a message using JWebServices, but even though all other fields are retrieved successfully, body does not. message.getBody() returns null. Here are the two methods I call subsequently.
private void createMessage(Service service) throws ParseException {
try {
Message message = new Message();
message.setItemClass(ItemClass.MESSAGE);
message.setSubject("Test");
message.setBody(new Body("Body text"));
message.getToRecipients().add(new Mailbox("John#mydomain.com"));
message.getCcRecipients().add(new Mailbox("Mark#mydomain.com"));
ItemId itemId = service.createItem(message,StandardFolder.SENT_ITEMS);
} catch (ServiceException e) {
System.out.println(e.getMessage());
System.out.println(e.getXmlMessage());
e.printStackTrace();
}
}
private void listItemsInSent(Service service) throws ParseException {
try {
FindItemResponse response = service.findItem(StandardFolder.SENT_ITEMS);
Message m = null;
for (int i = 0; i < response.getItems().size(); i++) {
m = (Message)response.getItems().get(i);
System.out.println(m.getSubject());
System.out.println(m.getItemClass());
System.out.println(m.getLastModifiedTime());
System.out.println(m.getBody());
System.out.println(m.getBodyHtmlText());
System.out.println(m.getBodyPlainText());
System.out.println(m.getItemId());
System.out.println(m.toString());
System.out.println();
}
} catch (ServiceException e) {
System.out.println(e.getMessage());
System.out.println(e.getXmlMessage());
e.printStackTrace();
}
}

Try to replace
m = (Message)response.getItems().get(i);
with
m = service.getMessage(response.getItems().get(i).getItemId());