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Spring microservice: Servlet.service() for servlet [jsp] threw exception

I work with a Spring microservice and received the following errors,
2020-01-20 09:58:22.504 ERROR 13758 --- [nio-8080-exec-1] o.a.c.c.C.[.[localhost].[/].[jsp] : Servlet.service() for servlet [jsp] threw exception
java.lang.ClassNotFoundException: org.apache.tomcat.util.security.Escape
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_211]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_211]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_211]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_211]
at org.apache.jasper.compiler.JspUtil.getExprInXml(JspUtil.java:85) ~[tomcat-embed-jasper-9.0.29.jar:9.0.29]
at org.apache.jasper.compiler.PageDataImpl$SecondPassVisitor.printAttributes(PageDataImpl.java:736) ~[tomcat-embed-jasper-9.0.29.jar:9.0.29]
In the browser, its provided the error,
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Mon Jan 20 09:58:22 BDT 2020
There was an unexpected error (type=Internal Server Error, status=500).
org/apache/tomcat/util/security/Escape
I provide a few code snippets from the respective micro-service,
#SpringBootApplication
#EnableCircuitBreaker
#EnableDiscoveryClient
#EnableFeignClients
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
#Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
return builder.build();
}
}
The controller class,
#Controller
#Transactional
#RequestMapping("/website/vehicles")
public class VehicleController {
#Autowired
private VehicleRepository data;
#Autowired
private PositionTrackingExternalService externalService;
#PostMapping(value = "/newVehicle.html")
public String newVehicle(Vehicle vehicle) {
data.save(vehicle);
return "redirect:/website/vehicles/list.html";
}
#PostMapping(value = "/deleteVehicle.html")
public String deleteVehicle(#RequestParam Long id) {
data.delete(id);
return "redirect:/website/vehicles/list.html";
}
#GetMapping(value = "/newVehicle.html")
public ModelAndView renderNewVehicleForm() {
Vehicle newVehicle = new Vehicle();
return new ModelAndView("newVehicle", "form", newVehicle);
}
#GetMapping(value = "/list.html")
public ModelAndView vehicles() {
List<Vehicle> allVehicles = data.findAll();
return new ModelAndView("allVehicles", "vehicles", allVehicles);
}
...... ..... ...... ..... ...... .....
...... ..... ...... ..... ...... .....
}
The feign client,
#FeignClient(name = "fleetman-position-tracker")
public interface RemotePositionMicroserviceCalls {
#GetMapping(value = "/vehicles/{name}")
public Position getLatestPositionForVehicle(#PathVariable(value = "name") String name);
}
The service classes,
#Service
public class PositionTrackingExternalService {
#Autowired
private ObjectProvider<RemotePositionMicroserviceCalls> remoteService;
#Autowired
private VehicleRepository repository;
#HystrixCommand(fallbackMethod = "handleExternalServiceDown")
public Position getLatestPositionForVehicleFromRemoteMicroservice(String name) {
Position response = remoteService.getObject().getLatestPositionForVehicle(name);
response.setUpToDate(true);
return response;
}
public Position handleExternalServiceDown(String name) {
// Read the last known position for this vehicle
Position position = new Position();
Vehicle vehicle = repository.findByName(name);
position.setLat(vehicle.getLat());
position.setLongitude(vehicle.getLongitude());
position.setTimestamp(vehicle.getLastRecordedPosition());
position.setUpToDate(false);
return position;
}
}
The project structure,
As requested, the pom.xml file is provided below,
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.transport.visualizer</groupId>
<artifactId>transport-visualizer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>TransportVisualizer</name>
<description>Vehicle Transport Visualizer</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-ribbon</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<resources>
<resource>
<filtering>true</filtering>
<directory>src/main/resources</directory>
<includes>
<include>application.properties</include>
</includes>
</resource>
</resources>
</build>
</project>
What's the issue here and how do I solve it?

Change your jasper dependency as
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>

The dependency should be configured as with scope provided:
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>

Spring-Boot: Failure on running of a spring-boot restful program

I'm newbie to spring-boot. I have written a very simple restful project to do CRUD actions on an entity and I use jpa and sql server. When I run it, it fails and the error is related to the database and the driver.
I have read almost all of the question related to this error and none of them was the answer.
Here's all information:
application.properties:
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
spring.datasource.url=jdbc:sqlserver://localhost:1433;databaseName=restful;integratedSecurity=true
spring.datasource.initialize=true
spring.jpa.database=SQL_SERVER
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto = create-drop
spring.datasource.tomcat.max-wait=20000
spring.datasource.tomcat.max-active=50
spring.datasource.tomcat.max-idle=20
spring.datasource.tomcat.min-idle=15
pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myweb</groupId>
<artifactId>restful-api</artifactId>
<version>1.0-SNAPSHOT</version>
<name>restful-api</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.microsoft.sqlserver/mssql-jdbc -->
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>6.2.2.jre8</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.0.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jdbc -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
UserDaoImp.java:
#Repository
#Transactional
public class UserDaoImp implements UserDao {
#Autowired
private JdbcTemplate jt;
#Override
public List<User> getUsers() {
String query = "select all from Users";
RowMapper<User> rm = new UserRowMapper();
return jt.query(query, rm);
}
#Override
public User getUser(long id) {
String query = "select * from Users where Users.ID=?";
RowMapper<User> rm = new UserRowMapper();
return jt.queryForObject(query, rm, id);
}
#Override
public User getUser(String name, String lastName) {
String query = "select * from Users where Users.Name=? and Users.LastName=?";
RowMapper<User> rm = new UserRowMapper();
return jt.queryForObject(query, rm, name, lastName);
}
#Override
public void addUser(User user) {
if (!doesUserExist(user)) {
String query = "insert into Users values(?,?,?);";
jt.update(query, user.getName(), user.getLastName(), user.getId());
}
}
#Override
public void deleteUser(User user) {
String query = "Delete from Users where Users.id=? And Users.Name=? And Users.LastName=?";
jt.update(query, user.getId(), user.getName(), user.getLastName());
}
#Override
public void updateUser(User user) {
if (doesUserExist(user)) {
String query = "Update Users set Name=?, LastName=? where Users.Id=?";
jt.update(query, user.getName(), user.getLastName(), user.getId());
}
}
#Override
public boolean doesUserExist(User user) {
String query = "select * from Users where Users.Id=? And Users.Name=? And Users.LastName=?";
RowMapper<User> rm = new UserRowMapper();
User u = jt.queryForObject(query, rm, user.getId(), user.getName(), user.getLastName());
if (u == null) {
return false;
} else {
return true;
}
}
}
ServiceImp.java:
#org.springframework.stereotype.Service
public class ServiceImp implements Service {
#Autowired
private UserDaoImp udi;
#Override
public List<User> getUsers() {
return udi.getUsers();
}
#Override
public User getUser(long id) {
return udi.getUser(id);
}
#Override
public void addUser(User user) {
udi.addUser(user);
}
#Override
public void deleteUser(User user) {
udi.deleteUser(user);
}
#Override
public void update(User user) {
udi.updateUser(user);
}
}
Exception:
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
at the end it says:
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).
Note: One thing That i can't figure out is that i have registered dependency for sql server driver in pom.xml, but the library doesn't exist in External Library.
Regards

Try this :
1) Right click on Project.
2) Maven -> Update Project
3) Refresh the project again.
Or try with other dependency
<!-- https://mvnrepository.com/artifact/com.microsoft.sqlserver/sqljdbc4 -->
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>sqljdbc4</artifactId>
<version>4.0</version>
<scope>test</scope>
</dependency>
`

Mybatis-Spring Java Configuration #MapperScan Annotation

I am trying to set up my mybatis-spring like shown in the following examples:
1)Code from a previous answer on stackoverflow, a few answer down
(MyBatis-Spring + #Configuration - Can't autowire mapper beans)
#Configuration
#MapperScan("org.mybatis.spring.sample.mapper")
public class AppConfig
{
#Bean
public DataSource dataSource()
{
return new EmbeddedDatabaseBuilder().addScript("schema.sql").build();
}
#Bean
public DataSourceTransactionManager transactionManager()
{
return new DataSourceTransactionManager(dataSource());
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception
{
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
return sessionFactory.getObject();
}
}
2)Code from their documentation (http://www.mybatis.org/spring/mappers.html)
Usage:
public class FooServiceImpl implements FooService {
private UserMapper userMapper;
public void setUserMapper(UserMapper userMapper) {
this.userMapper = userMapper;
}
public User doSomeBusinessStuff(String userId) {
return this.userMapper.getUser(userId);
}
}
Registering Mapper with #MapperScan:
#Configuration
#MapperScan("org.mybatis.spring.sample.mapper")
public class AppConfig {
#Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder().addScript("schema.sql").build()
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
return sessionFactory.getObject();
}
}
My code which isn't working is as shown below:
My Application with nested AppConfig:
#SpringBootApplication
#MapperScan(basePackages="com.tjwhalen.game.service.dao")
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
//#MapperScan(basePackages="com.tjwhalen.game.service.dao")
public class AppConfig {
#Autowired
DataSource datasource;
#Bean
public DataSourceTransactionManager transactionManager() {
return new DataSourceTransactionManager(datasource);
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();
sqlSessionFactory.setDataSource(datasource);
//sqlSessionFactory.setTypeAliasesPackage("com.tjwhalen.game.model");
return (SqlSessionFactory) sqlSessionFactory.getObject();
}
#Bean
public ItemSummaryDbService itemSummaryDbService() {
return new ItemSummaryDbServiceImpl();
}
}
}
My service:
public class ItemSummaryDbServiceImpl implements ItemSummaryDbService {
#Autowired
private ItemSummaryMapper itemSummaryMapper;
public void setItemSummaryMapper(ItemSummaryMapper itemSummaryMapper) {
this.itemSummaryMapper = itemSummaryMapper;
}
public void writeItemSummarys(List<ItemSummary> itemSummarys) {
for(ItemSummary itemSummary : itemSummarys) {
itemSummaryMapper.insertItemSummary(itemSummary);
}
}
public List<ItemSummary> lookupItemSummarys() {
return itemSummaryMapper.selectItemSummarys();
}
}
My mapper in the package indicated by the #MapperScan annotaion:
package com.tjwhalen.game.service.dao;
import java.util.List;
import com.tjwhalen.game.model.ItemSummary;
public interface ItemSummaryMapper {
public void insertItemSummary(ItemSummary itemSummary);
public List<ItemSummary> selectItemSummarys();
}
My usage:
public class LoadItems implements CommandLineRunner {
private final static Logger logger = LoggerFactory.getLogger(LoadItems.class);
#Autowired
private ItemSummaryDbService service;
public void run(String... arg0) throws Exception {
logger.info("LoadItems is running");
ArrayList<ItemSummary> list = new ArrayList<ItemSummary>();
list.add(new ItemSummary(1, "one", 1));
service.writeItemSummarys(list);
}
}
My stacktrace:
java.lang.AbstractMethodError: org.mybatis.spring.transaction.SpringManagedTransactionFactory.newTransaction(Ljava/sql/Connection;Z)Lorg/apache/ibatis/transaction/Transaction;
at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSessionFromDataSource(DefaultSqlSessionFactory.java:77) ~[ibatis-core-3.0.jar:na]
at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSession(DefaultSqlSessionFactory.java:40) ~[ibatis-core-3.0.jar:na]
at org.mybatis.spring.SqlSessionUtils.getSqlSession(SqlSessionUtils.java:102) ~[mybatis-spring-1.3.0.jar:1.3.0]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:429) ~[mybatis-spring-1.3.0.jar:1.3.0]
at com.sun.proxy.$Proxy41.insert(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:279) ~[mybatis-spring-1.3.0.jar:1.3.0]
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:54) ~[ibatis-core-3.0.jar:na]
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:35) ~[ibatis-core-3.0.jar:na]
at com.sun.proxy.$Proxy42.insertItemSummary(Unknown Source) ~[na:na]
at com.tjwhalen.game.service.impl.ItemSummaryDbServiceImpl.writeItemSummarys(ItemSummaryDbServiceImpl.java:32) ~[classes/:na]
at com.tjwhalen.game.loader.LoadItems.run(LoadItems.java:28) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:798) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:782) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:769) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at com.tjwhalen.game.Application.main(Application.java:37) [classes/:na]
And finally my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tjwhalen.game</groupId>
<artifactId>Runescape-App</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
</parent>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/postgresql/postgresql -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.4-702.jdbc4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.ibatis/ibatis-core -->
<dependency>
<groupId>org.apache.ibatis</groupId>
<artifactId>ibatis-core</artifactId>
<version>3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<!-- <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> -->
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.batch/spring-batch-infrastructure -->
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-infrastructure</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
I've had a lot of problems in the past regarding incorrect pom.xml, so I looked at each dependency involving database access and made sure the project had the correct provided dependencies. I also checked that the versions were the same as mentioned in the provided dependencies.
What does the error message AbstractMethodError indicate?
Feel free to ask any clarifying questions

I figured it out. I added a dependency
<!-- https://mvnrepository.com/artifact/org.apache.ibatis/ibatis-core -->
<dependency>
<groupId>org.apache.ibatis</groupId>
<artifactId>ibatis-core</artifactId>
<version>3.0</version>
</dependency>
and removing it fixed. I don't know why this dependency was here, I went through and checked the rest of my dependencies to see if they depended on ibatis-core and they didn't.
So it was an oversight on my part, and shows that AbstractMethodError is likely a dependency issue, and that is the first thing that should be checked when facing it

Null Autowired Spring Bean (Cassandra Repository) in Service

I am getting a NullPointerException on an autowired bean in a service class. The class I'm trying to autowire is a Cassandra Repository.
My main class Application.java
#SpringBootApplication
#EnableAutoConfiguration
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
My Cassandra configuration CassandraConfig.java
#Configuration
#EnableCassandraRepositories(basePackages = "com.myretail")
public class CassandraConfig extends AbstractCassandraConfiguration {
#Override
protected String getKeyspaceName() {
return "myretail";
}
#Bean
public CassandraClusterFactoryBean cluster() {
CassandraClusterFactoryBean cluster =
new CassandraClusterFactoryBean();
cluster.setContactPoints("127.0.0.1");
cluster.setPort(9042);
return cluster;
}
#Bean
public CassandraMappingContext cassandraMapping()
throws ClassNotFoundException {
return new BasicCassandraMappingContext();
}
#Bean
public ProductService productService() {
return new ProductService();
}
}
My repository (dao) ProductPriceRepository.java
public interface ProductPriceRepository extends CassandraRepository<ProductPrice> {
#Query("select * from productprice where productId = ?0")
ProductPrice findByProductId(String productId);
}
My service class ProductService.java
#Path("/product")
#Component
public class ProductService {
#Autowired
ProductPriceRepository productPriceRepository;
#GET
#Path("/{id}")
#Produces(MediaType.APPLICATION_JSON)
public Product getTargetProduct(#PathParam("id") String productId) {
String urlString = "https://api.vendor.com/products/v3/" + productId + "?fields=descriptions&id_type=TCIN&key=43cJWpLjH8Z8oR18KdrZDBKAgLLQKJjz";
JSONObject json = null;
try {
json = new JSONObject(JsonReader.getExternalJsonResponse(urlString));
} catch (JSONException e) {
e.printStackTrace();
}
Product product = new Product();
product.setId(productId);
try {
JSONObject productCompositeResponse = json.getJSONObject("product_composite_response");
JSONArray items = productCompositeResponse.getJSONArray("items");
JSONObject item = items.getJSONObject(0);
JSONObject onlineDescription = item.getJSONObject("online_description");
product.setName(onlineDescription.getString("value"));
} catch (JSONException e) {
e.printStackTrace();
}
ProductPrice productPrice = productPriceRepository.findByProductId(productId);
product.setProductPrice(productPrice);
return product;
}
}
My pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myretail</groupId>
<artifactId>MyRetail</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>MyRetail</name>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>2.1.5</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-cassandra</artifactId>
<version>1.4.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit-spring</artifactId>
<version>2.1.9.2</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit-shaded</artifactId>
<version>2.1.9.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hectorclient</groupId>
<artifactId>hector-core</artifactId>
<version>2.0-0</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-servlet</artifactId>
<version>1.18.3</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.18.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<version>1.3.6.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://localhost:8080/manager/text</url>
<server>my-tomcat</server>
<path>/myRetail</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
It is my understanding that the annotations should pick up the repository and create the bean based off of the #EnableCassandraRepositories annotation. The #Autowired ProductPriceRepository in ProductService.java is always null though when I run this on tomcat. HOWEVER, if I run a junit test against the service call, the bean is properly created, the object is not null, and the tests pass (via #ContextConfiguration annotation).
I've looked at a couple different patterns that I thought might help, but none of them have worked. I can't create an implementation of my interface because Cassandra handles that internally and I'm forced to implement the Cassandra methods.
I feel like something is just slightly off with the annotations somewhere. Any ideas?

The problem is with your pom.xml
For spring-boot Cassandra application, you have to include below dependencies and parent pom in pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>
</dependencies>

There was an unexpected error (type=Not Acceptable, status=406) for Spring #RestController, spring-boot

I'm trying to return xml from my #RestController method -
#RestController
public class MCSController {
.
.
#RequestMapping(value = "/encoders", method = { RequestMethod.GET }, produces = { MediaType.APPLICATION_JSON,
MediaType.APPLICATION_XML })
public List<EncoderVO> getEncoders() {
List<EncoderVO> encoders = null;
try {
encoders = infoService.listEncoders();
} catch (MCSException e) {
logger.error("Error in listing encoders : " + e.getMessage());
}
return encoders;
}
Here is my EncoderVO.java -
#XmlRootElement
public class EncoderVO {
#XmlElement
private Long id;
#XmlElement
private String name;
#XmlElement
private Boolean flagActive;
public EncoderVO() {
}
public EncoderVO(Long id, String name, Boolean flagActive) {
super();
this.id = id;
this.name = name;
this.flagActive = flagActive;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Boolean getFlagActive() {
return flagActive;
}
public void setFlagActive(Boolean flagActive) {
this.flagActive = flagActive;
}
}
This is my pom.xml file -
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>mcs</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!-- Inherit defaults from Spring Boot -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.0.RELEASE</version>
</parent>
<properties>
<aws.sdk-version>1.9.1</aws.sdk-version>
<liquibase.version>3.3.0</liquibase.version>
</properties>
<!-- Add typical dependencies for a web application -->
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>jackson-annotations</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
<exclusions>
<exclusion>
<artifactId>jackson-annotations</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-broker</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<!-- Aws SDK Dependencies -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-elastictranscoder</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-sqs</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-sns</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-datapipeline</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-cloudfront</artifactId>
<version>${aws.sdk-version}</version>
</dependency>
</dependencies>
</project>
Below is my Application class -
#SpringBootApplication(exclude = { SpringBootWebSecurityConfiguration.class, LiquibaseAutoConfiguration.class })
#ComponentScan(basePackages = { "com.test.ott.mcs" })
#EnableAspectJAutoProxy
#EnableJms
#EntityScan("com.test.ott.mcs.entities")
#EnableJpaRepositories("com.test.ott.mcs.repository")
public class MCSApplication {
#Bean
JmsListenerContainerFactory<?> jmsContainerFactory(ConnectionFactory connectionFactory) {
DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
factory.setConnectionFactory(connectionFactory);
// A core poll size of 3 threads and a maximum pool size of 10 threads
factory.setConcurrency("3-10");
return factory;
}
// Using factory pattern with spring annotation
#Bean
public FactoryBean serviceLocatorFactoryBean() {
ServiceLocatorFactoryBean factoryBean = new ServiceLocatorFactoryBean();
factoryBean.setServiceLocatorInterface(EncodingAPIFactory.class);
return factoryBean;
}
public static void main(String args[]) {
SpringApplication.run(MCSApplication.class, args);
}
}
When I hit the url /encoders in browser, i get the below error -
There was an unexpected error (type=Not Acceptable, status=406). Could
not find acceptable representation
The jackson related jars in my calsspath are -
jackson-core-asl : 1.9.13
jackson-jaxrs : 1.9.13
jackson-mapper-asl : 1.9.13
jackson-annotations : 2.6.3
jackson-core : 2.6.3
jackson-module-jaxb-annotations : 2.2.3
jackson-jaxrs-json-provider : 2.2.3
jackson-jaxrs-base : 2.5.4
jackson-databind : 2.6.3
So, I have MappingJackson2HttpMessageConverter in my classpath.
Please suggest. Thanks in advance.

There is a solution that will work out-of-the-box, similarly to JAX-RS but with a bit worse output. The solution uses jackson-dataformat-xml. Add dependency to your project:
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
</dependency>
Response will look like this:
<?xml version="1.0" encoding="UTF-8"?>
<List>
<item>
<id>1</id>
<name>testEncoder1</name>
<flagActive>true</flagActive>
</item>
<item>
<id>2</id>
<name>testEncoder2</name>
<flagActive>true</flagActive>
</item>
<item>
<id>3</id>
<name>testEncoder3</name>
<flagActive>true</flagActive>
</item>
</List>
For further details please look at Spring MVC Way (jackson-dataformat-xml)

try
http://localhost:8080/mcs-0.0.1-SNAPSHOT/encoders.
mcs is the name of the application and
0.0.1-SNAPSHOT the version.
If it doesn't works you have to add a global path into the RequestController. Something like:
#RestController
#RequestMapping(value = "/mcs")
public class MCSController {
.
.
#RequestMapping(value = "/encoders", method = { RequestMethod.GET }, produces = { MediaType.APPLICATION_JSON,
MediaType.APPLICATION_XML })
public List<EncoderVO> getEncoders() {
and this request:
http://localhost:8080/mcs-0.0.1-SNAPSHOT/mcs/encoders
i hope it helps you.
Cheers

Add this dependecy in you POM.xml
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.8</version>
problem is with version of this jar. so please try out this solution