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Spring boot application returns 404 without entering controller class

Spring boot application returns 404 Not found error when calling API endpoints without even entering the controller class
I have gone through the possible solutions which can be found on the StackOverflow
possible solutions I have tested
added and removed #RequestMapping at the class level
tested with both
GetMapping("/get")
and
RequestMapping("/get")
and even with
GetMapping(value = "/get")
added #ComponentScan even when my folder structure is as per the guidelines.
tried with ResponseEntity<Object> and #RequestBody Annotation
I've tried almost all of the solutions I got from various platforms. Spring boot application API endpoints should call the corresponding methods based on their paths configured. But in my application, it throws an error with '404 Not Found' when any endpoint called. It seems the endpoints are not registered in the spring application
controller Class
#RestController
#RequestMapping(BACK_OFFICE_BASE_PATH)
public class ManagementController {
#Autowired
ManagementService managementService;
#GetMapping( SLASH_PATH)
public List<RateTemp> getUpdateRequests(){
return managementService.getUpdateRequests();
}
#PostMapping( SLASH_PATH)
public RateTemp addRate(#RequestBody RateTemp body) throws BadRequestException {
if(body != null){
return managementService.addRate(body);
}else throw new BadRequestException(ILLEGAL_REQUEST_FIELDS,"");
}
}
pom.xml
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
<springfox-version>3.0.0</springfox-version>
<log4j2.version>2.16.0</log4j2.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.3.Final</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.7.0</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-hal-explorer</artifactId>
</dependency>
<dependency>
<groupId>com.warrenstrange</groupId>
<artifactId>googleauth</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<exclusions>
<exclusion>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--springfox for swagger -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-oas</artifactId>
<version>${springfox-version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${springfox-version}</version>
</dependency>
<dependency>
<groupId>com.github.joschi.jackson</groupId>
<artifactId>jackson-datatype-threetenbp</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>

I've found a solution for my problem without even understanding it.
Anyway, it started working when I assigned a separate path for each and every method.
In my previous code, I have assigned the same path value for different HTTP methods(GET, POST, PUT, etc.). I have done this before, but I never got this error ever. Im trying to understand the cause of this error.
thanks for your suggestion
#RestController
#RequestMapping(BACK_OFFICE_BASE_PATH)
public class ManagementController {
#Autowired
ManagementService managementService;
#GetMapping( SLASH_PATH + "add")
public List<RateTemp> getUpdateRequests(){
return managementService.getUpdateRequests();
}
#PostMapping( SLASH_PATH + "update")
public RateTemp addRate(#RequestBody RateTemp body) throws BadRequestException {
if(body != null){
return managementService.addRate(body);
}else throw new BadRequestException(ILLEGAL_REQUEST_FIELDS,"");
}
}

How to use database with nativefier aap?

I have developed Spring Boot Web Application. And War file of this Web Application is convert into Desktop Application using Nativefier. But using netivefier Desktop Application, i can't able to run database. Please help me.
Startup of Spring Boot Application:
#SpringBootApplication
#ImportResource({ "classpath:applicationContext.xml" })
public class StockMaintenanceSystemApplication extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(StockMaintenanceSystemApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(StockMaintenanceSystemApplication.class, args);
}
}
My POM Class is like :
<modelVersion>4.0.0</modelVersion>
<groupId>com.startUpApp</groupId>
<artifactId>Maintenance-ERP-System</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Stock-Maintenance-System</name>
<description>Demo project for Spring Boot</description>
<packaging>war</packaging>
<!-- <version>1.0</version> -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.4.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
<mainClass>com.startUpApp.StockMaintenanceSystemApplication</mainClass>
</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-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>6.4.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>runtime</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.49</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcpkix-jdk15on</artifactId>
<version>1.49</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.santuario</groupId>
<artifactId>xmlsec</artifactId>
<version>1.5.1</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Package as an executable jar/war -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Using these when i run war file on command line then it works fine. But when i develop nativefier web application then database is not running using nativefier desktop app.
Please help me to run web application as desktop with database. Please share your ideas if u have any better idea to run web application as desktop application.

Rest controller test with #WebMvcTest, Could not instantiate JAXBContext for PagedResources

I have some tests that were failing with Error creating bean with name 'entityManagerFactory' this answer solved it for me https://stackoverflow.com/a/47504698/6945345 but broke my Controller test with Could not instantiate JAXBContext for class [class org.springframework.hateoas.PagedResources]: Implementation of JAXB-API has not been found on module path or classpath. This is because I think #WebMvcTest does not pick up the JAXB-API. What should I do to resolve this the best way?
The controller test class that is given the exception:
#RunWith(SpringRunner.class)
#WebMvcTest(BiodiversityController.class)
#Import(SpecieResourceAssembler.class)
public class BiodiversityControllerTest {
#MockBean
private SpecieService specieService;
#Autowired
private MockMvc mockMvc;
#Autowired
private SpecieResourceAssembler specieResourceAssembler;
#Before
public void setup() {
mockMvc = MockMvcBuilders.standaloneSetup(new BiodiversityController(specieService, specieResourceAssembler))
.setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
.build();
}
#Test
public void getAllSpecies_ShouldReturnSpecies() throws Exception {
PageRequest pageRequest = PageRequest.of(0, 20);
given(specieService.getAllSpecies(pageRequest)).willReturn(new PageImpl<>(
Collections.singletonList(createAnimaliaOrestias()), pageRequest, 1));
mockMvc.perform(MockMvcRequestBuilders.get("/species?page=0&size=20"))
.andExpect(status().isOk())
.andExpect(jsonPath("$.content", hasSize(1)))
.andExpect(jsonPath("$.content.[0].name").value(NAME_ORESTIAS));
verify(specieService).getAllSpecies(pageRequest);
}
}
My pom dependencies with the jaxb-api
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</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>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>

If you use Java 9 or higher you need to add the following VM options to start tests/application
--add-modules
java.xml.bind

Spring boot Reactive app starts tomcat in place of Netty

I have a spring boot reactive application generated from spring starter. It should use the Netty server by default but I can see that the tomcat has started on port 8080 in the console.
Below is my pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
I have choose some parts of pom.xml not entire pom.xml is included.
Below is the class for Spring-boot main app.
#SpringBootApplication
#EnableWebFlux
public class SpringWebFluxDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringWebFluxDemoApplication.class, args);
}
}
Is there anything else missing ? I think it should boot up with Netty only.

if you want netty instead as explained in documentation documentation
you've to exclude tomcat and include netty :
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
<exclusions>
<!-- Exclude the Tomcat dependency -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

I have followed this
https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/html/howto-embedded-web-servers.html
and I have excluded tomcat dependencies, rebuild the project. it was up and running on netty.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-websocket</artifactId>
<version>5.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
<!-- Exclude the Tomcat dependency -->
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>

Why do I have ambiguous handler methods mapped for HTTP path in my Spring Boot Rest Data Application?

I have done nothing special until now, but got this annoying Exception:
java.lang.IllegalStateException: Ambiguous handler methods mapped for HTTP path 'http://localhost:8080/directoryWatches': {public org.springframework.http.ResponseEntity org.springframework.data.rest.webmvc.RepositoryEntityController.headCollectionResource(org.springframework.data.rest.webmvc.RootResourceInformation,org.springframework.data.rest.webmvc.support.DefaultedPageable) throws org.springframework.web.HttpRequestMethodNotSupportedException, public org.springframework.hateoas.Resources org.springframework.data.rest.webmvc.RepositoryEntityController.getCollectionResource(org.springframework.data.rest.webmvc.RootResourceInformation,org.springframework.data.rest.webmvc.support.DefaultedPageable,org.springframework.data.domain.Sort,org.springframework.data.rest.webmvc.PersistentEntityResourceAssembler) throws org.springframework.data.rest.webmvc.ResourceNotFoundException,org.springframework.web.HttpRequestMethodNotSupportedException}
Here is my entity:
#Entity
public class DirectoryWatch {
#Id
#GeneratedValue
private long id;
#Column(unique = true)
private String name;
//setters, getters and default constructor...
}
And my DirectoryWatchRepository:
#RepositoryRestResource
public interface DirectoryWatchRepository extends PagingAndSortingRepository<DirectoryWatch, Long> {
}
The exception occurs, when I open the HAL Browser and try to open the NON-GET HTTP Methods:
Snippets of my pom file:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.M2</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
Dependencies:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator-docs</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>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-hal-browser</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-remote-shell</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.restdocs</groupId>
<artifactId>spring-restdocs-mockmvc</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>2.11.0</version>
</dependency>
</dependencies>
Has anyone a helping idea?
Thank you,
Christian

This suspiciously looks like the regression in Spring Framework 4.3 RC1 that I've reported here. The issue is already fixed and the upcoming Spring Boot 1.4 M3 is going to include the fixed version.
The release Boot should be available in a couple of days. Until that has happened you could just manually upgrade to Spring Framework 4.3 RC2.