reactor/netty/resources/ConnectionProvider.fixed(Ljava/lang/String;IJLjava/time/Duration;)Lreactor/netty/resources/ConnectionProvider; - spring-boot

Question

spring boot application starts up fails with Azure cosmos DB
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
com.azure.cosmos.implementation.http.HttpClient.createFixed(HttpClient.java:56)
The following method did not exist:
reactor.netty.resources.ConnectionProvider.fixed(Ljava/lang/String;IJLjava/time/Duration;)Lreactor/netty/resources/ConnectionProvider;
The method's class, reactor.netty.resources.ConnectionProvider, is available from the following locations:
jar:file:/Users/vishnuvuyyur/.m2/repository/io/projectreactor/netty/reactor-netty-core/1.0.1/reactor-netty-core-1.0.1.jar!/reactor/netty/resources/ConnectionProvider.class
The class hierarchy was loaded from the following locations:
reactor.netty.resources.ConnectionProvider: file:/Users/vishnuvuyyur/.m2/repository/io/projectreactor/netty/reactor-netty-core/1.0.1/reactor-netty-core-1.0.1.jar

Answer 1

Reason for the error:
As in the logs it states :com.azure.cosmos.implementation.http.HttpClient.createFixed(HttpClient.java:56)
The azure cosmos library is not updated with the latest spring boot version
Current issue can be reproduced with spring-boot 2.4.0 and azure cosmos db 3.0.0-beta.1
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-cosmosdb-spring-boot-starter</artifactId>
<version>3.0.0-beta.1</version>
Fix, lower the spiring boot version to 2.3.5 since azure db version 3.0.0-beta.1 dosen't support spring 2.4.0

Answer 2

Changing the spring boot version worked for me
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.4.RELEASE</version>
<relativePath/>
</parent>

Answer 3

I've solved using java 11, i created webflux from intellij for reactive microservices.
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.api.bank.salesforce</groupId>
<artifactId>sbs</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>sbs</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>spring-data-cosmosdb</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-core</artifactId>
<version>1.10.0</version>
</dependency>
<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>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
<version>1.5.21</version>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-models</artifactId>
<version>1.6.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.10.3</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
</dependency>
<dependency>
<groupId>org.threeten</groupId>
<artifactId>threetenbp</artifactId>
<version>1.5.0</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.2.RELEASE</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>io.swagger.codegen.v3</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.18</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>${project.basedir}/src/main/resources/library-api.yaml</inputSpec>
<language>spring</language>
<output>${project.build.directory}/generated-sources/</output>
<generateSupportingFiles>false</generateSupportingFiles>
<apiPackage>com.api.bank.salesforce.sbs.api</apiPackage>
<modelPackage>com.api.bank.salesforce.sbs.models</modelPackage>
<configOptions>
<interfaceOnly>true</interfaceOnly>
</configOptions>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>