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java read data from json and save it in ms sql database - error argument "src" is null

I want to read data from json file and save it to ms sql data base
This is my application.java class. The error is in this file on the line before for loop
#SpringBootApplication
public class Covid19Application {
public static void main(String[] args) {
SpringApplication.run(Covid19Application.class, args);
}
#Bean
CommandLineRunner runner(SaveDataFromJsonToDBService saveDataFromJsonToDBService) {
return args -> {
ObjectMapper mapper = new ObjectMapper();
TypeReference<List<CovidStatistics>> typeReference = new TypeReference<List<CovidStatistics>>(){};
InputStream inputStream = TypeReference.class.getResourceAsStream("/CovidStatistics.json");
try {
List<CovidStatistics> covidStatistics = mapper.readValue(inputStream,typeReference);
for (CovidStatistics cs : covidStatistics) {
saveDataFromJsonToDBService.save(cs);
}
//saveDataFromJsonToDBService.save(covidStatistics);
System.out.println("Users Saved!");
} catch (IOException e){
System.out.println("Unable to save users: " + e.getMessage());
}
};
}
}
And this is the error. I dont know where is the problem, I try to google it, but I dont found a solution
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:774) ~[spring-boot-2.7.4.jar:2.7.4]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:755) ~[spring-boot-2.7.4.jar:2.7.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.7.4.jar:2.7.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.7.4.jar:2.7.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.4.jar:2.7.4]
at com.example.Covid19.Covid19Application.main(Covid19Application.java:18) ~[classes/:na]
Caused by: java.lang.IllegalArgumentException: argument "src" is null
at com.fasterxml.jackson.databind.ObjectMapper._assertNotNull(ObjectMapper.java:4737) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3512) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.example.Covid19.Covid19Application.lambda$runner$0(Covid19Application.java:28) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:771) ~[spring-boot-2.7.4.jar:2.7.4]
... 5 common frames omitted
2022-10-06 20:42:51.780 INFO 30652 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2022-10-06 20:42:51.782 INFO 30652 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-10-06 20:42:51.788 INFO 30652 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
Process finished with exit code 1

As you want to read from the classpath root you must use, It seems the inputstream is null so its not finding the file.
InputStream inputStream = TypeReference.class.getClassLoader().getResourceAsStream("/CovidStatistics.json");
TypeReference.class.getResourceAsStream will look in the directory where the class file is.

First wrap your InputStream into a try with resources. Next print all errors with catching exception. Also make sure that the file you are referring to can be found.
CommandLineRunner runner(SaveDataFromJsonToDBService saveDataFromJsonToDBService) {
return args -> {
ObjectMapper mapper = new ObjectMapper();
TypeReference<List<CovidStatistics>> typeReference = new TypeReference<List<CovidStatistics>>(){};
try(InputStream inputStream = TypeReference.class.getResourceAsStream("/CovidStatistics.json")) {
List<CovidStatistics> covidStatistics = mapper.readValue(inputStream,typeReference);
for (CovidStatistics cs : covidStatistics) {
saveDataFromJsonToDBService.save(cs);
}
//saveDataFromJsonToDBService.save(covidStatistics);
System.out.println("Users Saved!");
} catch (Exception e){
System.out.println("Unable to save users: " + e.getMessage());
}
};
}```

Using JpaRepository in a class implementing Runnable [duplicate]

This question already has answers here:
Why is my Spring #Autowired field null?
(21 answers)
Closed last year.
I'm creating socket server using Spring Boot and I'm having trouble initializing my JpaRepositories in a class that implements Runnable. For testing the server I use netcat and the server successfully receives the data and creates new thread to handle/parse the data. But when time comes to save the data in database via JpaRepositories I get NullPointerException since repositories have not been successfully initialized. What I'm I missing in my configuration for this to work?
My SpringBootApplication
package is.siminn.aos;
import java.net.ServerSocket;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class AosApplication {
public static final Logger log = LogManager.getLogger(AosApplication.class);
public static void main(String[] args) {
SpringApplication.run(AosApplication.class, args);
openSocket();
}
private static void openSocket() {
try (ServerSocket server = new ServerSocket(1234)) {
log.log(Level.INFO, "Server listening on port " + 1234);
while (true) {
Thread obj = new Thread(new AosTask(server.accept()));
obj.start();
}
} catch (Exception e) {
log.log(Level.ERROR, e.getMessage(), e);
}
}
}
Class implementing Runnable
package is.siminn.aos;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Date;
import javax.transaction.Transactional;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import is.siminn.aos.domain.Alarm;
import is.siminn.aos.domain.AlarmCategory;
import is.siminn.aos.domain.AlarmClass;
import is.siminn.aos.domain.Exchange;
import is.siminn.aos.domain.Spr;
import is.siminn.aos.repositories.AlarmCategoryRepository;
import is.siminn.aos.repositories.AlarmClassRepository;
import is.siminn.aos.repositories.AlarmRepository;
import is.siminn.aos.repositories.ExchangeRepository;
import is.siminn.aos.repositories.SprRepository;
import is.siminn.aos.repositories.SubExchangeRepository;
public class AosTask implements Runnable {
public static final Logger log = LogManager.getLogger(AosTask.class);
Socket socket;
AlarmClassRepository alarmClassRepository;
AlarmCategoryRepository alarmCategoryRepository;
ExchangeRepository exchangeRepository;
SubExchangeRepository subExchangeRepository;
SprRepository sprRepository;
AlarmRepository alarmRepository;
protected AosTask(Socket socket) {
this.socket = socket;
}
#Override
public void run() {
System.out.println("Thread " + Thread.currentThread().getId() + " is running");
int ascii = -1;
try (InputStreamReader in = new InputStreamReader(socket.getInputStream())) {
OutputStreamWriter out = new OutputStreamWriter(socket.getOutputStream());
StringBuffer axeBlock = new StringBuffer();
do {
ascii = in.read();
axeBlock.append((char) ascii);
} while (ascii != 4);
out.append(process(axeBlock));
out.flush();
} catch (Exception e) {
log.log(Level.ERROR, e.getMessage(), e);
} finally {
try {
socket.close();
} catch (Exception e) {
log.log(Level.ERROR, e.getMessage(), e);
}
}
}
#Transactional
private String process(StringBuffer axeBlock) {
String header1 = "";
String header2 = "";
Alarm alarm = null;
boolean isAlarm = true;
String[] axeBlockArray = axeBlock.toString().split("\\n|\\r|\\f");
for (int i = 0; i < axeBlockArray.length; i++) {
String line = axeBlockArray[i];
if (line.startsWith(":type=alarm") || line.startsWith(":type=spontan")) { /* APG type */
log.log(Level.DEBUG, "APG...");
if (line.startsWith(":type=alarm")) {
String nextLine = axeBlockArray[i + 2];
if (nextLine.startsWith("*** ALARM CEASING")) {
log.log(Level.DEBUG, "APG alarm ceasing");
isAlarm = false;
ceasing(nextLine);
break;
} else {
log.log(Level.DEBUG, "APG alarm");
header1 = nextLine;
alarm = alarm(header1);
header2 = axeBlockArray[i + 3];
break;
}
} else if (line.startsWith("type=spontan")) {
log.log(Level.DEBUG, "APG heartbeat");
System.out.println("heartbeat");
isAlarm = false;
heartbeat(line);
break;
} else {
/* wtf */
}
break;
} else if (line.startsWith("WO ")) { /* IOG type */
log.log(Level.DEBUG, "IOG...");
// TODO: implement
} else {
/* nothing to see here */
}
}
if (isAlarm) {
alarm.setSpr(new Spr(header1, header2, new String[] {axeBlock.toString()}));
}
return axeBlock.toString();
}
private Alarm alarm(String header1) {
Alarm alarm = new Alarm();
/**
* Header example
* header1: *** ALARM 406 A2/APT "TBREI/IS76/MPS1"A 220104 1404
*/
String[] fields = header1.split(" ");
Integer alarmId = Integer.valueOf(fields[2]);
String[] alarmClassAndCategory = fields[3].split("/");
String cls = alarmClassAndCategory[0];
String cat = alarmClassAndCategory[1];
String exch = fields[4].substring(1, fields[4].indexOf("/"));
String date = fields[5];
String time = fields[6];
Date created = null;
try {
created = Utils.createTimestamp(date, time);
} catch (Exception e) {
// TODO: handle exception
}
AlarmClass alarmClass = alarmClassRepository.findByCode(cls);
AlarmCategory alarmCategory = alarmCategoryRepository.findByCode(cat);
Exchange exchange = exchangeRepository.findByCode(exch);
alarm.setAlarmId(alarmId);
alarm.setAlarmCategory(alarmCategory);
alarm.setAlarmClass(alarmClass);
alarm.setExchange(exchange);
alarm.setDateCreated(created);
return alarm;
}
private void ceasing(String line) {
log.log(Level.DEBUG, "CEASING [" + line + "]");
// TODO: implement
}
private void heartbeat(String line) {
log.log(Level.DEBUG, "HEARTBEAT [" + line + "]");
// TODO: implement
}
}
application.properties
# ===============================
# = DATA SOURCE
# ===============================
# Set here configurations for the database connection
spring.datasource.url=jdbc:postgresql://localhost:5432/aos
spring.datasource.username=foo
spring.datasource.password=bar
spring.datasource.driver-class-name=org.postgresql.Driver
# Keep the connection alive if idle for a long time (needed in production)
spring.datasource.tomcat.test-while-idle=true
spring.datasource.tomcat.validation-query=SELECT 1
# ===============================
# = JPA / HIBERNATE
# ===============================
# Show or not log for each sql query
spring.jpa.show-sql=true
# Hibernate ddl auto (create, create-drop, update): with "create" the database
spring.jpa.hibernate.ddl-auto=create
#spring.jpa.hibernate.ddl-auto=update
# Naming strategy
spring.jpa.hibernate.naming.implicit-strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyHbmImpl
spring.jpa.hibernate.naming.physical-strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy
# Allows Hibernate to generate SQL optimized for a particular DBMS
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
spring.main.allow-bean-definition-overriding=true
I have a few repositories and they are implemented in the same way so I'll only post one example.
package is.siminn.aos.repositories;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import is.siminn.aos.domain.AlarmCategory;
#Repository
public interface AlarmCategoryRepository extends JpaRepository<AlarmCategory, Long> {
AlarmCategory findByCode(String code);
}
Entities are also all similar so I think one example is enough.
package is.siminn.aos.domain;
import java.io.Serializable;
import java.util.Objects;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import lombok.Data;
#Data
#Entity
#Table(name = "ALARM_CLASS")
public class AlarmClass implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#Column(name = "ID", nullable = false)
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name = "CODE", nullable = false, unique = true)
private String code;
public AlarmClass() {
super();
// TODO Auto-generated constructor stub
}
public AlarmClass(String code) {
super();
this.code = code;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
#Override
public int hashCode() {
return Objects.hash(code, id);
}
#Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
AlarmClass other = (AlarmClass) obj;
return Objects.equals(code, other.code) && id == other.id;
}
#Override
public String toString() {
return "AlarmClass [id=" + id + ", code=" + code + "]";
}
}
SpringApplication log
12:36:16.752 [Thread-0] DEBUG org.springframework.boot.devtools.restart.classloader.RestartClassLoader - Created RestartClassLoader org.springframework.boot.devtools.restart.classloader.RestartClassLoader#79f54323
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.6.2)
2022-01-14 12:36:16.997 INFO 65870 --- [ restartedMain] is.siminn.aos.AosApplication : Starting AosApplication using Java 15.0.1 on IS-C02F62LZMD6R with PID 65870 (/Users/gsigurdsson/Documents/workspace-spring-tool-suite-4-4.8.0.RELEASE/aos/target/classes started by gsigurdsson in /Users/gsigurdsson/Documents/workspace-spring-tool-suite-4-4.8.0.RELEASE/aos)
2022-01-14 12:36:16.998 INFO 65870 --- [ restartedMain] is.siminn.aos.AosApplication : No active profile set, falling back to default profiles: default
2022-01-14 12:36:17.027 INFO 65870 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2022-01-14 12:36:17.337 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-01-14 12:36:17.338 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JDBC repositories in DEFAULT mode.
2022-01-14 12:36:17.357 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.AlarmCategoryRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.359 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.AlarmClassRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.360 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.AlarmRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.362 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.AosUserRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.363 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.ExchangeRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.365 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.HeartbeatRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.366 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.SprRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.367 INFO 65870 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface is.siminn.aos.repositories.SubExchangeRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-01-14 12:36:17.368 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 26 ms. Found 0 JDBC repository interfaces.
2022-01-14 12:36:17.376 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-01-14 12:36:17.377 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-01-14 12:36:17.409 INFO 65870 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 29 ms. Found 8 JPA repository interfaces.
2022-01-14 12:36:17.667 INFO 65870 --- [ restartedMain] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-01-14 12:36:17.698 INFO 65870 --- [ restartedMain] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.3.Final
2022-01-14 12:36:17.798 INFO 65870 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-01-14 12:36:17.876 INFO 65870 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-01-14 12:36:18.014 INFO 65870 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-01-14 12:36:18.027 INFO 65870 --- [ restartedMain] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
Hibernate: drop table if exists activity cascade
Hibernate: drop table if exists alarm cascade
Hibernate: drop table if exists alarm_category cascade
Hibernate: drop table if exists alarm_class cascade
Hibernate: drop table if exists aos_user cascade
Hibernate: drop table if exists exchange cascade
Hibernate: drop table if exists heartbeat cascade
Hibernate: drop table if exists preferences cascade
Hibernate: drop table if exists spr cascade
Hibernate: drop table if exists sub_exchange cascade
Hibernate: create table activity (id bigserial not null, alarm_id bytea not null, aosuser_id bytea not null, created timestamp not null, message varchar(2048), updated timestamp not null, primary key (id))
Hibernate: create table alarm (id bigserial not null, alarm_category bytea not null, alarm_class bytea not null, alarm_id int4 not null, ceasing_time timestamp, date_created timestamp not null, exchange_id bytea not null, spr_id bytea not null, primary key (id))
Hibernate: create table alarm_category (id bigserial not null, code varchar(255) not null, primary key (id))
Hibernate: create table alarm_class (id bigserial not null, code varchar(255) not null, primary key (id))
Hibernate: create table aos_user (id bigserial not null, user_name varchar(255) not null, primary key (id))
Hibernate: create table exchange (id bigserial not null, code varchar(255) not null, primary key (id))
Hibernate: create table heartbeat (id bigserial not null, exchange_id bytea, lastcall timestamp not null, primary key (id))
Hibernate: create table preferences (id bigserial not null, aosuser_id bytea not null, paging_counter int4 not null, refresh_interval int4 not null, primary key (id))
Hibernate: create table spr (id bigserial not null, header1 varchar(255) not null, header2 varchar(255) not null, message bytea not null, primary key (id))
Hibernate: create table sub_exchange (id bigserial not null, code varchar(255) not null, exchange_id bytea not null, primary key (id))
Hibernate: alter table alarm_category add constraint UK_k23l5xnesa680kk6b7sfeo2tt unique (code)
Hibernate: alter table alarm_class add constraint UK_he7nncsa3mlq6baqdjyg8hycy unique (code)
Hibernate: alter table aos_user add constraint UK_kbd1svuqgedu877c6x9n0hspd unique (user_name)
Hibernate: alter table exchange add constraint UK_84nwdtjn33htwaelm1fun3s7r unique (code)
Hibernate: alter table sub_exchange add constraint UK_s46mwccobp5ktr1yh2o491uoo unique (code)
2022-01-14 12:36:18.732 INFO 65870 --- [ restartedMain] o.h.t.schema.internal.SchemaCreatorImpl : HHH000476: Executing import script 'file:/Users/gsigurdsson/Documents/workspace-spring-tool-suite-4-4.8.0.RELEASE/aos/target/classes/import.sql'
Hibernate: INSERT INTO alarm_category (code) VALUES('APZ')
Hibernate: INSERT INTO alarm_category (code) VALUES('APT')
Hibernate: INSERT INTO alarm_category (code) VALUES('POWER')
Hibernate: INSERT INTO alarm_category (code) VALUES('EXT')
Hibernate: INSERT INTO alarm_class (code) VALUES('A1')
Hibernate: INSERT INTO alarm_class (code) VALUES('A2')
Hibernate: INSERT INTO alarm_class (code) VALUES('A3')
Hibernate: INSERT INTO alarm_class (code) VALUES('O1')
Hibernate: INSERT INTO alarm_class (code) VALUES('O2')
Hibernate: INSERT INTO alarm_class (code) VALUES('O3')
Hibernate: INSERT INTO exchange (code) VALUES('SMUT')
Hibernate: INSERT INTO exchange (code) VALUES('SBRE')
Hibernate: INSERT INTO exchange (code) VALUES('TBREI')
Hibernate: INSERT INTO exchange (code) VALUES('AKUR')
Hibernate: INSERT INTO exchange (code) VALUES('BREI')
Hibernate: INSERT INTO exchange (code) VALUES('EGIL')
Hibernate: INSERT INTO exchange (code) VALUES('ISAF')
Hibernate: INSERT INTO exchange (code) VALUES('KOPA')
Hibernate: INSERT INTO exchange (code) VALUES('MIDB')
Hibernate: INSERT INTO exchange (code) VALUES('MULI')
Hibernate: INSERT INTO exchange (code) VALUES('SELF')
Hibernate: INSERT INTO exchange (code) VALUES('VARM')
Hibernate: INSERT INTO exchange (code) VALUES('TMULI')
Hibernate: INSERT INTO exchange (code) VALUES('PRUF')
2022-01-14 12:36:18.922 INFO 65870 --- [ restartedMain] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-01-14 12:36:18.928 INFO 65870 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-01-14 12:36:19.368 INFO 65870 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2022-01-14 12:36:19.385 INFO 65870 --- [ restartedMain] is.siminn.aos.AosApplication : Started AosApplication in 2.625 seconds (JVM running for 3.313)
2022-01-14 12:36:19.388 INFO 65870 --- [ restartedMain] is.siminn.aos.AosApplication : Server listening on port 1234
Thread 43 is running
2022-01-14 12:39:02.194 ERROR 65870 --- [ Thread-7] is.siminn.aos.AosTask : Cannot invoke "is.siminn.aos.repositories.AlarmClassRepository.findByCode(String)" because "this.alarmClassRepository" is null
java.lang.NullPointerException: Cannot invoke "is.siminn.aos.repositories.AlarmClassRepository.findByCode(String)" because "this.alarmClassRepository" is null
at is.siminn.aos.AosTask.alarm(AosTask.java:157) ~[classes/:na]
at is.siminn.aos.AosTask.process(AosTask.java:105) ~[classes/:na]
at is.siminn.aos.AosTask.run(AosTask.java:65) ~[classes/:na]
at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

There are several issues with this implementation. There are three ways to inject dependencies in a spring application and you are not following any of them.
Field
Method
Constructor
Either mark your field and the Runnable with proper annotations or do a constructor injection. Consider creating a separate service class instead of writing the entire logic inside runnable. Lastly, create a thread pool instead of spawning a new thread each time, else your application might end up unresponsive.

Consider defining a bean of type 'com.example.amazonsync.Service.IAmazonUtilService' in your configuration

I am getting null pointer exception in my service class. I have autowired myservice class named IAmazonUtilService. But it am facing null pointervexception.
Also i have written PropertiesUtil to read data from application.properties which is also not working. Please help me on this.
2020-03-27 18:39:20.172 INFO 17536 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
java.lang.NullPointerException
at com.example.amazonsync.AmazonSync.ImportAmazonDataService.getOrdersFromAmazonStore(ImportAmazonDataService.java:36)
ImportAmazonDataService.java:36
at com.example.amazonsync.SyncData.OrderSync.execute(OrderSync.java:17)
OrderSync.java:17
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
JobRunShell.java:202
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
SimpleThreadPool.java:573
2020-03-27 18:39:20.254 INFO 17536 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2020-03-27 18:39:20.263 INFO 17536 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-03-27 18:39:20.330 INFO 17536 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-03-27 18:39:20.841 ERROR 17536 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field IAmazonUtilService in com.example.amazonsync.AmazonSync.ImportAmazonDataService required a bean of type 'com.example.amazonsync.Service.IAmazonUtilService' that could not be found.
ImportAmazonDataService.java
public class ImportAmazonDataService {
#Autowired
private IAmazonUtilService IAmazonUtilService;
public ArrayList<String> getChannelLoc() {
ArrayList<String> channelLoc = new ArrayList<String>();
channelLoc.add("US");
channelLoc.add("CA");
channelLoc.add("MX");
return channelLoc;
}
public void getProductsFromAmazonStore(JobExecutionContext context) throws SQLException, ClassNotFoundException {
try {
final Long taskID = (Long) context.getJobDetail().getJobDataMap().get("taskId");
IAmazonUtilService.getChannelConfig("US");
} catch (Exception e) {
e.printStackTrace();
}
}
public void getOrdersFromAmazonStore(JobExecutionContext context) throws SQLException, ClassNotFoundException {
final long taskID = (long) context.getJobDetail().getJobDataMap().get("taskId");
IAmazonUtilService.getChannelConfig("CA");
}
}
Git link : https://github.com/Ezhilarasu1330/SpringBootQuartzSchedular.git

Change extends by implements !!
from:
public class AmazonUtilService extends ImportAmazonDataService {}
to:
public class AmazonUtilService implements ImportAmazonDataService {}

your ImportAmazonDataService class should be annotated as #Service in order spring will know to inject the #Autowired IAmazonUtilService
also refactor
#Autowired
private IAmazonUtilService IAmazonUtilService;
to
#Autowired
private IAmazonUtilService iAmazonUtilService;

Can't run SpringBoot Application

I am new to Spring and i have to make an "HelloWorld" Application. After several attempts, i can't solve my problem.
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class CiaoMondoApplication {
public static void main(String[] args) {
SpringApplication.run(CiaoMondoApplication.class, args);
}
} // that's the Application
package com.example.demo;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;
#RestController
public class CiaoMondoController {
#RequestMapping("/")
public String index() {
return "HelloWorld";
}
} // and that's the controller
Below the output, when i try to run the Application with Eclipse:
2019-06-11 11:09:33.089 INFO 9572 --- [ main] com.example.demo.CiaoMondoApplication : Starting CiaoMondoApplication on Asus-Mattia with PID 9572 (C:\Users\matti\eclipse-workspace\ciao-mondo\target\classes started by matti in C:\Users\matti\eclipse-workspace\ciao-mondo)
2019-06-11 11:09:33.091 INFO 9572 --- [ main] com.example.demo.CiaoMondoApplication : No active profile set, falling back to default profiles: default
2019-06-11 11:09:33.627 INFO 9572 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-06-11 11:09:33.644 INFO 9572 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 11ms. Found 0 repository interfaces.
2019-06-11 11:09:33.895 INFO 9572 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$bb774f16] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-06-11 11:09:34.107 INFO 9572 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-06-11 11:09:34.127 INFO 9572 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-06-11 11:09:34.127 INFO 9572 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.19]
2019-06-11 11:09:34.219 INFO 9572 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-06-11 11:09:34.219 INFO 9572 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1094 ms
2019-06-11 11:09:34.271 WARN 9572 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
2019-06-11 11:09:34.274 INFO 9572 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-06-11 11:09:34.284 INFO 9572 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-06-11 11:09:34.289 ERROR 9572 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

You have a data start dependency but didn't add the driver for H2 or you want to use another database then you have to add at least: url, username, password
If you don't want to use a database remove the starter from your maven or gradle project file.

You might have mentioned below dependency
compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa'
So, Spring will look for datasource url in application.properties, so remove that or if you you want to work with jdbc add the properties in application.properties
spring.datasource.url = <jdbc-url>
spring.datasource.username = <db-username>
spring.datasource.password = <db-password>
spring.datasource.driverClassName = <db-driver>

If you don't use any datasource in your application you can put following annotation on your CiaoMondoApplication class
#EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class})

/*
* Hi Simon,
*
* Couple of questions, have you used the Spring Initializr to build the project or * have you done if from scratch?
*
* https://start.spring.io/
*
* Is a good place to start:
*
* Here is my basic app (to call a sendgrid api) but that does not matter.
*
*/
// Rest Application
package com.XXXXXXX.restapi;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class RestApiApplication{
public static void main(String[] args)
{
SpringApplication.run(RestApiApplication.class, args);
}
}
and that is all that is in my restapi.java
I then have a controller
sendgridcontroller.java
import java.io.IOException;
#RestController
#RequestMapping(sendGridController.BASE_URL)
public class sendGridController
{
public static final String BASE_URL = "/api/v1/feedbacks";
private final sendGridAPI sendGridAPIService;
public sendGridController(sendGridAPIImpl sendGridAPIService)
{
this.sendGridAPIService = sendGridAPIService;
}
#CrossOrigin
#PostMapping("/sendfeedback")
public ResponseEntity<Boolean> sendFeedback(#RequestParam(name="fullname")String fullName,
#RequestParam(name="subject")String subject,
#RequestParam(name="email") String emailAddr,
#RequestParam(name="message")String message )
{
Boolean bReturn = true;
System.out.println("fullName ="+fullName);
System.out.println("subject ="+subject);
System.out.println("email ="+emailAddr);
System.out.println("message ="+message);
try
{
sendGridAPIService.sendFeedbackEmail(fullName, subject, emailAddr, message);
}
catch(Exception e)
{
return new ResponseEntity<>(false,HttpStatus.BAD_GATEWAY);
}
return new ResponseEntity<>(bReturn, HttpStatus.OK);
}
}
This is in its own package
Next i created a services package with two files
an Interface sendGridApi.java
package com.ea_optimised.restapi.services;
import org.springframework.stereotype.Service;
import java.io.IOException;
public interface sendGridAPI
{
void sendFeedbackEmail(String fullNameme, String subject, String emailAddr, String message) throws IOException;
}
// .... and Finally, I have an implementation of the interface
package com.XXXXX.restapi.services;
import com.sendgrid.*;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.net.UnknownHostException;
import java.rmi.ServerException;
#Service
public class sendGridAPIImpl implements sendGridAPI
{
// API_KEY
private static final String SENDGRID_API_KEY = "My key went here";
#Override
public void sendFeedbackEmail(String fullNameme, String subject, String emailAddr, String message) throws IOException
{
Email from = new Email(emailAddr);
Email to = new Email("info#ea-optimised.co.uk");
// Email to = new Email("test#example.com");
Content content = new Content("text/plain", message);
Mail mail = new Mail(from, subject, to, content);
SendGrid sg = new SendGrid(SENDGRID_API_KEY);
Request request = new Request();
try
{
request.setMethod(Method.POST);
request.setEndpoint("mail/send");
request.setBody(mail.build());
Response response = sg.api(request);
System.out.println("****\nSTATUS="+response.getStatusCode());
System.out.println("\n***Body :\n\n"+response.getBody());
System.out.println("***Headers:\n\n"+response.getHeaders());
}
catch ( UnknownHostException e )
{
System.out.println("***Unknown Host Exception:\n\n");
throw e;
}
catch (Exception ex)
{
System.out.println( "SendGrid Failed "+ex.getMessage());
try
{
throw ex;
}
catch (IOException e)
{
e.printStackTrace();
throw e;
}
}
}
}
Hope this helps
Finally are you using Gradle or Maven?

Add XML extension on project build path in Eclipse not working

I have added XML extension in my Java Build Path , but when I am running mvn test it is showing error
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] F:\HibernateExample\src\main\java\net\dibyendu\hibernate\Main.java:[53,16] error: cannot find symbol
[INFO] 1 error
Also when I am trying to Run As Java Application I am not getting the my main class to execute .
Here is my Main.java file coding:
package net.dibyendu.hibernate;
import java.sql.Date;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
public class Main {
public static void main(String[] args) {
// Read
System.out.println("******* READ *******");
List employees = list();
System.out.println("Total Employees: " + employees.size());
// Write
System.out.println("******* WRITE *******");
Employee empl = new Employee("Jack", "Bauer", new Date(System.currentTimeMillis()), "911");
empl = save(empl);
}
private static List list() {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session session = sf.openSession();
List employees = session.createQuery("from Employee").list();
session.close();
return employees;
}
private static Employee read(Long id) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session session = sf.openSession();
Employee employee = (Employee) session.get(Employee.class, id);
session.close();
return employee;
}
private static Employee save(Employee employee) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session session = sf.openSession();
session.beginTransaction();
Long id = (Long) session.save(employee);
employee.setId(id);
session.getTransaction().commit();
session.close();
return employee;
}
private static Employee update(Employee employee) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session session = sf.openSession();
session.beginTransaction();
session.merge(employee);
session.getTransaction().commit();
session.close();
return employee;
}
private static void delete(Employee employee) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session session = sf.openSession();
session.beginTransaction();
session.delete(employee);
session.getTransaction().commit();
session.close();
}
}
I am getting plenty of error keeping the error line in try catch :
[main] INFO org.hibernate.cfg.Environment - Hibernate 3.5.5-Final
[main] INFO org.hibernate.cfg.Environment - hibernate.properties not found
[main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
[main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
[main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml
[main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml
[main] INFO org.hibernate.cfg.Configuration - Reading mappings from resource : src/main/resources/Employee.hbm.xml
Initial SessionFactory creation failed.org.hibernate.MappingNotFoundException: resource: src/main/resources/Employee.hbm.xml not found
Exception in thread "main" java.lang.ExceptionInInitializerError
at net.dibyendu.hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:18)
at net.dibyendu.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:8)
at net.dibyendu.hibernate.Main.list(Main.java:31)
at net.dibyendu.hibernate.Main.main(Main.java:17)
Caused by: org.hibernate.MappingNotFoundException: resource: src/main/resources/Employee.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:665)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1679)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1647)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1626)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1600)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1520)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1506)
at net.dibyendu.hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:13)
... 3 more
I am very new to hibernate so please guide me.

Very nice to tell Eclipse that you've added the xml files to the classpath, but you haven't told Maven. Maven divides classpath files into 2 groups: compilable (under src/main/java and src/test/java) and non-compilable aka resources ( under src/main/resources and src/test/resources). The preferred solution is to move these xml files to the proper folder. When using m2eclipse, just update the project and eclipse will add these sourcefolders for you.
Btw. this doesn't explain the compilation error, this is just one of the issues you're facing.