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spring-projects / spring-data-r2dbc

Provide support to increase developer productivity in Java when using Reactive Relational Database Connectivity. Uses familiar Spring concepts such as a DatabaseClient for core API usage and lightweight repository style data access.
Apache License 2.0
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database client dependency error #179

Closed nikkisingh111333 closed 5 years ago

nikkisingh111333 commented 5 years ago

Description:

Field rr in GamOney2.GamOney2.H2controller required a bean named 'databaseClient' that could not be found.

The injection point has the following annotations:

Action:

Consider defining a bean named 'databaseClient' in your configuration.

Hello there,as i trying m working with new r2dbc release on my production project. there are several things i need to ask about: 1.please solve this error as i m completely new in r2dbc world i m using project database configurations based on application.properties configuration(as described in docs) and updated almost every dependency based on r2dbc if im missing something please let me know. 2.is it safe to implement this api into my production app NOW ?. beacuse i really like the concept of "subscribers and publishers" way of data fetching/inserting .

HERES MY DEPENDENCIES `<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0 
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.8.BUILD-SNAPSHOT</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>GamOney-2</groupId>
<artifactId>GamOney-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>GamOney-2</name>
<description>Demo project for Spring Boot</description>

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Greenwich.BUILD-SNAPSHOT</spring-cloud.version>
    <vaadin.version>14.0.2</vaadin.version>
</properties>

<dependencies>
<!-- https://mvnrepository.com/artifact/io.r2dbc/r2dbc-client -->
io.r2dbc r2dbc-client 1.0.0.M7 tech.simter simter-r2dbc-ext 1.3.0 
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.2.7</version>

org.springframework.boot spring-boot-starter-quartz 
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl -->
com.sun.xml.bind jaxb-impl 2.0.1 org.springframework.boot.experimental spring-boot-starter-data-r2dbc 0.1.0.M1 org.springframework.data spring-data-r2dbc 1.0.0.M2 org.springframework.boot.experimental spring-boot-autoconfigure-r2dbc 0.1.0.M1 org.springframework.boot.experimental spring-boot-starter-data-r2dbc 0.1.0.M1 io.r2dbc r2dbc-bom Arabba-M8 pom io.r2dbc r2dbc-postgresql 0.8.0.M8 runtime io.r2dbc r2dbc-pool runtime org.apache.tomcat tomcat-jasper 9.0.17 
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet/jsp-api -->
javax.servlet jsp-api 2.0 provided org.apache.commons commons-lang3 3.4 
<dependency>
        <groupId>org.apache.derby</groupId>
        <artifactId>derby</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.boot</groupId>
        <artifactId>spring-boot-starter-webflux</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-mail</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-quartz</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
<groupId>io.r2dbc</groupId>
<artifactId>r2dbc-proxy</artifactId>
<version>1.0.0.M7</version>

io.r2dbc r2dbc-h2 0.8.0.M8 io.r2dbc r2dbc-pool 0.8.0.M8 io.r2dbc r2dbc-spi 0.8.0.M8 com.google.code.findbugs jsr305 3.0.2 io.projectreactor reactor-core 3.2.12.RELEASE 
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>com.vaadin</groupId>
        <artifactId>vaadin-spring-boot-starter</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-stream-reactive</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session-core</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
        <optional>true</optional>
    </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>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-stream-test-support</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>
</dependencies>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-bom</artifactId>
            <version>${vaadin.version}</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>
</build>

<repositories>
 <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/milestone</url>
    <snapshots>
        <enabled>false</enabled>
    </snapshots>
</repository>
<repository>
    <id>spring-snapshots</id>
    <name>Spring Snapshots</name>
    <url>https://repo.spring.io/snapshot</url>
    <snapshots>
        <enabled>true</enabled>
    </snapshots>
</repository>

    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </repository>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </pluginRepository>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

`

mp911de commented 5 years ago

If you would like us to spend some time helping you to diagnose the problem, please spend some time describing it and, ideally, providing a minimal sample that reproduces the problem.

nikkisingh111333 commented 5 years ago

Okk I will send you code

On Wed, 11 Sep 2019, 11:10 a.m. Mark Paluch, notifications@github.com wrote:

If you would like us to spend some time helping you to diagnose the problem, please spend some time describing it and, ideally, providing a minimal sample https://stackoverflow.com/help/mcve that reproduces the problem.

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nikkisingh111333 commented 5 years ago

hey there i m getting this error while starting and configuring springboot with r2bdc auto-configuration experimental: Description:

Field rr in GamOney2.GamOney2.H2controller required a bean named 'databaseClient' that could not be found.

The injection point has the following annotations:

Action:

Consider defining a bean named 'databaseClient' in your configuration. here what i have: `<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0 
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.8.BUILD-SNAPSHOT</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>GamOney-2</groupId>
<artifactId>GamOney-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>GamOney-2</name>
<description>Demo project for Spring Boot</description>
1.8 Greenwich.BUILD-SNAPSHOT 14.0.2 io.r2dbc r2dbc-client 0.8.0.M8 tech.simter simter-r2dbc-ext 1.3.0 com.sun.xml.bind jaxb-core 2.2.7 org.springframework.boot spring-boot-starter-quartz org.springframework.boot spring-boot-starter-web com.sun.xml.bind jaxb-impl 2.0.1 org.springframework.boot.experimental spring-boot-starter-data-r2dbc 0.1.0.M1 org.springframework.data spring-data-r2dbc 1.0.0.M2 org.springframework.boot.experimental spring-boot-autoconfigure-r2dbc 0.1.0.M1 org.springframework.boot.experimental spring-boot-actuator-autoconfigure-r2dbc 0.1.0.M1 org.springframework.boot.experimental spring-boot-starter-data-r2dbc 0.1.0.M1 io.r2dbc r2dbc-bom Arabba-M8 pom io.r2dbc r2dbc-spi-parent 1.0.0.M7 pom io.r2dbc r2dbc-spi-test 1.0.0.M7 test io.r2dbc r2dbc-postgresql 1.0.0.M7 io.r2dbc r2dbc-pool runtime org.apache.tomcat tomcat-jasper 9.0.17 javax.servlet jstl 1.2 javax.servlet jsp-api 2.0 provided org.apache.commons commons-lang3 3.4 org.apache.derby derby runtime org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-webflux org.springframework.boot spring-boot-starter-data-rest org.springframework.boot spring-boot-starter-mail org.springframework.boot spring-boot-starter-quartz org.springframework.boot spring-boot-starter-thymeleaf io.r2dbc r2dbc-proxy 1.0.0.M7 io.r2dbc r2dbc-h2 0.8.0.M8 io.r2dbc r2dbc-pool 0.8.0.M8 io.r2dbc r2dbc-spi 0.8.0.M8 com.google.code.findbugs jsr305 3.0.2 io.projectreactor reactor-core 3.2.12.RELEASE org.springframework.boot spring-boot-starter-web com.vaadin vaadin-spring-boot-starter org.springframework.cloud spring-cloud-stream-reactive org.springframework.session spring-session-core org.springframework.boot spring-boot-configuration-processor true org.projectlombok lombok true org.springframework.boot spring-boot-starter-test test io.projectreactor reactor-test test org.springframework.cloud spring-cloud-stream-test-support test com.h2database h2 runtime io.r2dbc r2dbc-bom Arabba-M8 pom import org.springframework.cloud spring-cloud-dependencies ${spring-cloud.version} pom import com.vaadin vaadin-bom ${vaadin.version} pom import 
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

<repositories>
 <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/milestone</url>
    <snapshots>
        <enabled>false</enabled>
    </snapshots>
</repository>
<repository>
    <id>spring-snapshots</id>
    <name>Spring Snapshots</name>
    <url>https://repo.spring.io/snapshot</url>
    <snapshots>
        <enabled>true</enabled>
    </snapshots>
</repository>
    <repository>
spring-milestones Spring Milestones https://repo.spring.io/milestone

spring-snapshots Spring Snapshots https://repo.spring.io/snapshot true 
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </pluginRepository>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

heres my connectionfactory `@Configuration public class PostgresConnection extends AbstractR2dbcConfiguration{

// @Bean // public DatabaseClient db() { //
// return DatabaseClient.create(conn); // }

@Override @Bean

public ConnectionFactory connectionFactory() {

PostgresqlConnectionFactory h2c=new PostgresqlConnectionFactory(PostgresqlConnectionConfiguration.builder()
        .schema("public")
        .host("localhost")
        .username("postgres")
        .password("nikkibro0")  //Recative method chaining for PostgresSQL DB connection and configuration
        .port(5432)
        .database("postgres")
        .build());
R2dbcTransactionManager tm = new R2dbcTransactionManager(h2c);
//TransactionalOperator rxtx = TransactionalOperator.create(tm);
// ConnectionPool c=new ConnectionPool( ConnectionPoolConfiguration.builder(cf).maxAcquireTime(Duration.ofSeconds(1000)).initialSize(25).build());
// TODO Auto-generated method stub
return h2c;

}

}`

heres my properties (please tell me if im wrong here): `server.port=8087 spring.h2.console.path=/h2-console spring.h2.console.enabled=true spring.h2.console.settings.trace=true

spring.r2dbc.url=r2dbc:h2:mem:///results?options=DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE

spring.r2dbc.username=\u2026

spring.r2dbc.password=\u2026

spring.datasource.driver-class-name=io.r2dbc.h2.H2ConnectionFactoryProvider.H2_DRIVER

spring.view.prefix:/WEB-INF/

spring.view.suffix:.jsp

spring.view.view-names:jsp/*

spring.thymeleaf.view-names:thymeleaf-2/*

vaadin.compatibilityMode=true spring.r2dbc.url=r2dbc:postgresql://localhost:5432/postgres spring.r2dbc.username=postgres spring.r2dbc.password=nikkibro0 spring.r2dbc.name=mydatabase spring.r2dbc.initialization-mode=always spring.r2dbc.continue-on-error spring.r2dbc.generate-unique-name=true`

heres my table pojo and repository: `package GamOney2.GamOney2;

import java.util.List;

import org.springframework.data.r2dbc.repository.R2dbcRepository; import org.springframework.data.r2dbc.repository.query.Query; import org.springframework.data.repository.reactive.ReactiveCrudRepository; import org.springframework.stereotype.Repository;

import reactor.core.publisher.Flux; import reactor.core.publisher.Mono;

@Repository public interface ReactiveREPO extends R2dbcRepository<testdb2,Long> { @Query(value="select * from testdb2 where name=$1") public Flux findit(String name); @Query(value="insert into testdb2(name,id) values($1,$2)") public Mono saveNew(String name,Long id); } & package GamOney2.GamOney2;

import javax.annotation.Generated;

import org.springframework.data.annotation.Id; import org.springframework.data.relational.core.mapping.Table;

import lombok.AllArgsConstructor; import lombok.Builder; import lombok.Data; import lombok.Getter; import lombok.Setter; @Builder @Data @Table("testdb2") public class testdb2 { @Id // @GeneratedStrategy() public Long id; public String name; public Long getId() { return id; }

public String getName() { return name.strip();//strip() will remove all the whitespaces '' from string and return it. } public void setId(Long id) { this.id=id; } public void setName(String name) { this.name=name; }

}`

and heres my controller: `package GamOney2.GamOney2;

import java.util.ArrayList; import java.util.List; import java.util.Properties;

import org.reactivestreams.Publisher; import org.springframework.beans.factory.annotation.Autowired; //import org.springframework.data.r2dbc.function.DatabaseClient; import org.springframework.data.r2dbc.repository.support.SimpleR2dbcRepository; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.servlet.ModelAndView; import org.springframework.data.r2dbc.core.DatabaseClient; import org.springframework.data.r2dbc.core.TransactionalDatabaseClient;

import io.r2dbc.spi.Connection; import io.r2dbc.spi.ConnectionFactory; import reactor.core.publisher.Flux; import reactor.core.publisher.Mono;

@RestController public class H2controller { @Autowired ReactiveREPO rr; @Autowired ConnectionFactory conn; @Autowired H2repo hr; @Autowired DatabaseClient dc; @GetMapping(value="/Set",produces=MediaType.APPLICATION_JSON_VALUE) public Flux get(){ my bussiness logics }` this is all i have done so far and getting above error . am i missing something.

mp911de commented 5 years ago

Please refrain from pasting all code into the comment. The pasted code is unusable that way. Instead, please attach a zip file. Thank you.

nikkisingh111333 commented 5 years ago

GamOney2Application - Copy.TXT H2connection - Copy.TXT H2controller - Copy.txt PostgresConnection - Copy.TXT ReactiveREPO - Copy.TXT testdb2 - Copy.TXT PLZ SEE ABOVE FILES. HERES POM.XML

pom.TXT AT LAST BUT MY APPLICATION.PROPERTIES WITH DATABASE CONFIGURATION server.port=8087 spring.h2.console.path=/h2-console spring.h2.console.enabled=true spring.h2.console.settings.trace=true vaadin.compatibilityMode=true spring.r2dbc.url=r2dbc:postgresql://localhost:5432/postgres spring.r2dbc.username=postgres spring.r2dbc.password=nikkibro0 spring.r2dbc.name=mydatabase spring.r2dbc.initialization-mode=always spring.r2dbc.continue-on-error spring.r2dbc.generate-unique-name=true

ERROR REPORTING: FIRST ERROR IS: `Description:

Field rr in GamOney2.GamOney2.H2controller required a bean named 'databaseClient' that could not be found.

The injection point has the following annotations:

Action:

Consider defining a bean named 'databaseClient' in your configuration.`

SECOND ERROR IS: Caused by: java.lang.NoClassDefFoundError: org/springframework/transaction/reactive/AbstractReactiveTransactionManager at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:151) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] at GamOney2.GamOney2.PostgresConnection.connectionFactory(PostgresConnection.java:47) ~[classes/:na] at GamOney2.GamOney2.PostgresConnection$$EnhancerBySpringCGLIB$$6f178af0.CGLIB$connectionFactory$0(<generated>) ~[classes/:na] at GamOney2.GamOney2.PostgresConnection$$EnhancerBySpringCGLIB$$6f178af0$$FastClassBySpringCGLIB$$136d6d0b.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE] at GamOney2.GamOney2.PostgresConnection$$EnhancerBySpringCGLIB$$6f178af0.connectionFactory(<generated>) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE] ... 146 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.transaction.reactive.AbstractReactiveTransactionManager

mp911de commented 5 years ago

Thanks.

Please learn how to properly format code and logs.

Caused by: java.lang.NoClassDefFoundError: org/springframework/transaction/reactive/AbstractReactiveTransactionManager at indicates that the used Spring Framework version isn't compatible with the one you're using. Please upgrade to Spring Framework 5.2 RC2 and Spring Data R2DBC 1.0.0.BUILD-SNAPSHOT.

nikkisingh111333 commented 5 years ago

thanks for your reply you saved my another day.and what about "couldn't resolve databaseClient dependency error "as i've described above as i have tried manually creating bean of databaseClient but didn't work. i think r2dbc is not stable yet for production . Am i right? but i really loved the concept and wanna continue r2dbc as it grows.

mp911de commented 5 years ago

You should not immediately use it in production but for testing, it's perfectly suitable. The more folks test Spring Data R2DBC and R2DBC drivers, the more bugs we can catch and make it more stable.

nikkisingh111333 commented 5 years ago

as far as i know i ve already ugraded my spring framework .all spring core,context,aop,and other stuffs are operating at 5.1.9 release and as you said i ve updated r2dbc to 1.0.0 build snapshot.but the classnotfound reactivetransaction is not found error is still there what can i do ? how can i upgrade so that i can get rid of it.

nikkisingh111333 commented 5 years ago

as you describe upograding to springframework 5.2 RC2 i m unable to find it please specify where i can find it and use it. i have used spring r2dbc 1.0.0 M7 and it was working fine databaseclient was smooth but yesterday when i tried to enhanched r2dbc to 1.0.0 M2 with 0.8.0 M8 auto configuration accuator all started to messing up.