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NoSuchMethodError: com.zaxxer.hikari.HikariDataSource.getMetricsTrackerFactory()Lcom/zaxxer/hikari/metrics/MetricsTrackerFactory

I'm migrating a Java Spring application to Spring Boot. I've transferred the application-context.xml configuration inside Java beans. However, when I try to launch the Spring Boot app, I get the following error:
java.lang.NoSuchMethodError:
com.zaxxer.hikari.HikariDataSource.getMetricsTrackerFactory()Lcom/zaxxer/hikari/metrics/MetricsTrackerFactory;
It seems like there is something wrong with my configuration or the library version I'm using, but so far I've no clue. I'm using Spring Boot 2.5.6 and HikariCP 2.5.1.
Here is my data source configuration:
#Primary
#Bean(destroyMethod = "close")
DataSource dataSource(DatasourceProperties datasourceProperties) {
return DataSourceBuilder.create()
.type(HikariDataSource.class)
.driverClassName(datasourceProperties.getDriverClassName())
.url(datasourceProperties.getUrl())
.username(datasourceProperties.getUsername())
.password(datasourceProperties.getPassword())
.build();
}
I can provide more configuration and info if needed.

As listed in its reference documentation, Spring Boot 2.5.6 requires Hikari 4.0.3. You should upgrade Hikari.

It was a version issue of HikariCP. I noticed HikariDataSource came from com.zaxxer.HikariCP-java7.2.4.13, which was brought by a Quartz dependency.
I excluded this HikariCP library version from Quartz explicitly
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>${quartz.version}</version>
<exclusions>
<exclusion>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP-java7</artifactId>
</exclusion>
</exclusions>
</dependency>

Spring Cloud Config unable to get correct values

I am unable to get the value I am expecting, An exception is thrown at this line #Value("${message:this-is-class-value}").
SERVER SIDE
pom.xml
<dependencies>
<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>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
</dependencies>
src/main/resources/application.properties
server.port=8888
spring.application.name=config-service
spring.cloud.config.server.git.uri=file:///C:/config
management.endpoints.web.exposure.include=*
spring.security.user.name=root
spring.security.user.password=abc123
Application class
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;
#SpringBootApplication
#EnableConfigServer
public class ConfigServiceApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigServiceApplication.class, args);
}
}
Local git folder
Configurations files with the same property but the different value to detect
c:/config/application.properties
c:/config/api-gateway.properties
c:/config/api-gateway-PROD.properties
output while server startup
Completed initialization in 5 ms
WARN : Could not merge remote for master remote: null
INFO : o.s.c.c.s.e.NativeEnvironmentRepository : Adding property source: file:/C:/config/application.properties
if I access this url
http://localhost:8888/api-gateway/PROD
console output is as follows
WARN : Could not merge remote for master remote: null
INFO : o.s.c.c.s.e.NativeEnvironmentRepository : Adding property source: file:/C:/config/api-gateway-PROD.properties
INFO : o.s.c.c.s.e.NativeEnvironmentRepository : Adding property source: file:/C:/config/api-gateway.properties
INFO : o.s.c.c.s.e.NativeEnvironmentRepository : Adding property source: file:/C:/config/application.properties
CLIENT SIDE (Separate Project)
pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
Application class
#SpringBootApplication
#EnableZuulProxy
#EnableDiscoveryClient
public class ApiGatewayApplication {
public static void main(String[] args) {
SpringApplication.run(ApiGatewayApplication.class, args);
}
}
Controller
#RestController
public class SettingsController {
#Value("${message:this-is-class-value}")
String name = "World";
#RequestMapping("/")
public String home() {
return "Hello " + name;
}
}
resources/application.yml
server:
port: 8282
spring:
application:
name: api-gateway
eureka:
instance:
preferIpAddress: true
client:
registerWithEureka: true
fetchRegistry: true
serviceUrl:
defaultZone: ${EUREKA_URI:http://localhost:8761/eureka}
resources/bootstrap.yml
spring:
profiles:
active: PROD
cloud:
config:
name: api-gateway
uri: http://localhost:8888/
username: root
password: abc123
management:
endpoints:
web:
exposure:
include: refresh
Console output
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'settingsController': Injection of autowired dependencies failed; nested exception is org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.LinkedHashMap<?, ?>] to type [java.lang.String]
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.LinkedHashMap<?, ?>] to type [java.lang.String]
Please do let me know if anything else is required.

add message=Hello from property file1 in src/main/resources/application.properties. Or if you want to read this property from c:/config/application.properties or c:/config/config-service.properties you need to configure external configuration file by using #ConfigurationProperties annotation.

Looks, you are trying to use the #Value annotation on controller class which resides in your Cloud config server application. While the concept is like cloud config server application will be the provider to other applications and it can provide the properties from git or local file system (configuration) to requester client application. Other applications will connect to your config server application by providing it's URL, application name and profile for which it want to get the properties. You can check below URL for cloud config server and client application.
https://www.thetechnojournals.com/2019/10/spring-cloud-config.html
Your cloud config server has security configuration as below.
spring.security.user.name=root
spring.security.user.password=abc123
You client configuration doesn't provide any security configuration which is causing 401 error in your logs.
To solve this issue please do below changes to your client configuration.
Client configuration:
spring:
profiles:
active: PROD
cloud:
config:
name: api-gateway
uri: http://localhost:8888/
username: root
password: abc123

How to integrate Keycloak 7 with Spring Boot 2

I want to setup the Keycloak adapter (v7.0.0) for a Spring Boot 2.1.x backend. Somehow this doesn't work as expected and mvn clean spring:boot-run shows errors.
To get a playground i cloned this working repo. After a successful build with the old versions of Keycloak and Spring Boot i changed the dependencies (and versions).
For the POM i included:
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-starter</artifactId>
<version>7.0.0</version>
</dependency>
and
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.keycloak.bom</groupId>
<artifactId>keycloak-adapter-bom</artifactId>
<version>7.0.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
and provide properties via the application.yml file:
keycloak:
auth-server-url: http://127.0.0.1:8081/auth/
resource: persons-app
realm: PersonRealm
public-client: true
principal-attribute: preferred_username
This follows Keycloaks docs.
The result is an error showing:
Description:
Parameter 1 of method setKeycloakSpringBootProperties in org.keycloak.adapters.springboot.KeycloakBaseSpringBootConfiguration required a bean of type 'org.keycloak.adapters.springboot.KeycloakSpringBootConfigResolver' that could not be found.
Action:
Consider defining a bean of type 'org.keycloak.adapters.springboot.KeycloakSpringBootConfigResolver' in your configuration.
This is already defined. So thats the problem. I don't know if there are certain restriction of what versions of Keycloak and Spring Boot work together. Maybe someone could explain what i missed here or what versions to set. Thanks!

The same question has been asked here: Issues running example keycloak spring-boot app I'll point you to the other one for more information about the issue and a temporary workaround.
At the moment there is no ultimate solution, it's an issue with the Keycloak Spring Boot Adapter 7.0.0. If you use the previous version of the adapter (6.0.1) then it will work fine, even if the Keycloak server is running version 7.0.0 (you just don't get the new features introduced in the new adapter).

Spring Boot Hikari can't find DriverClassName

I have a spring boot project,It run just fine when I execute via eclipse Project > Run as > spring boot app
but when I build the project and execute it using java -jar myproject.jar or run it using mvn spring-boot:run it throw this error
Failed to bind properties under '' to com.zaxxer.hikari.HikariDataSource:
Property: driverclassname
Value: com.microsoft.sqlserver.jdbc.SQLServerDriver
Origin: "driverClassName" from property source "source"
Reason: Failed to load driver class com.microsoft.sqlserver.jdbc
.SQLServerDriver in either of HikariConfig class loader or Thread context classloader
Action:
Update your application's configuration
my sql server connector dependency
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>6.4.0.jre8</version>
<scope>test</scope>
</dependency>
and here my application.properties
spring.datasource.url=jdbc:sqlserver://mydb;databaseName=HTSdb
spring.datasource.username=xxx
spring.datasource.password=xxx
spring.jpa.show-sql=true
spring.jpa.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
it looks my app can't find the sqlserver driver but it is already in project classpath,any suggestion? thanks in advance

I think the issue is with dependency scope which is set as test.
Scope test indicates that dependency isn't required at standard runtime of application and should only be used for purpose of test runs only!
Usually database connectors dependency are set with runtime scope.
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>6.4.0.jre8</version>
<scope>runtime</scope>
</dependency>

Failed to bind properties under '' to com.zaxxer.hikari.HikariDataSource:
Property: driver-class-name
Value: org.postgresql.Driver
Origin: "driverClassName" from property source "source"
Reason: Failed to load driver class org.postgresql.Driver in either of HikariConfig
class loader or Thread context classloader
Action:
Update your application's configuration
Just had the same error, in my case with "org.postgresql.Driver".
Gues what was the issue? an empty space after "org.postgresql.Driver " by mistake.
So, be aware about that ' ' invisible empty space :).

Add dependency
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
</dependency>
check if Jar is loaded in lib if not then you need to add version 8.2.1.jre8 and rebuild the project .
You can validate by checking if mssql-jdbc-8.2.1.jre8 jar is there loaded in project and it has SQLServerDriver.class file in it .

Spring Boot Admin, client registration results in bad request

I am going to register my spring boot application to spring-boot-admin server.
Here is my SpringBootAdminApplication.java
#Configuration
#EnableAutoConfiguration
#EnableAdminServer
public class SpringBootAdminApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootAdminApplication.class, args);
}
}
And pom.xml:
<dependencies>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-example</artifactId>
<version>1.0.5</version>
</dependency>
</dependencies>
and application.properties
server.port = 8080
Server is running now:
Now, in client side:
properties:
spring.boot.admin.url=http://localhost:8080
info.version=#project.version#
spring.application.name=rest-module
pom.xml:
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
<version>1.3.0</version>
</dependency>
But, when i run the spring boot from client, i get this error:
Created POST request for "http://localhost:8080/api/applications"
Setting request Accept header to [application/json, application/json, application/*+json, application/*+json]
Writing [Application [id=null, name=rest-module, managementUrl=http://Hayatloo-PC:8082, healthUrl=http://Hayatloo-PC:8082/health, serviceUrl=http://Hayatloo-PC:8082]] as "application/json" using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter#1637320b]
Failed to register application as Application [id=null, name=rest-module, managementUrl=http://Hayatloo-PC:8082, healthUrl=http://Hayatloo-PC:8082/health, serviceUrl=http://Hayatloo-PC:8082] at spring-boot-admin (http://localhost:8080/api/applications): 400 Bad Request
Why id=null ?

You messed up the versions. Try to update the client and server to the same versions. We try too keep em compatible but from 1.0.x to 1.3.x you have no chance.
Btw current version is 1.3.2.
Additional you are using the sample as dependency. This indeed works, but I wouldn't recommend it. You better setup your server as described in the guide. http://codecentric.github.io/spring-boot-admin/1.3.2/