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Import issue with com.hazelcast.config.MaxSizeConfig

I'm working on a Spring boot tutorial and I'm a bit stuck on this section of the video. The narrator in the video uses the MaxSizeConfig import inside a return statement. Trying out the same line, I'm getting an error saying that MaxSizeConfig can't be resolved to a type. Checking out the docs for hazelcast, the import exists. Could I get some direction in what I'm doing wrong with my code?
Here's my pom.xml:
<?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>2.5.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.stephen.springweb</groupId>
<artifactId>productrestapi</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>productrestapi</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</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-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<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-cache</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast-spring</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>build-info</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
Here's the code that's trying to use MaxSizeConfig:
package com.stephen.springweb.productrestapi.config;
import org.springframework.context.annotation.Bean;
import com.hazelcast.config.Config;
import com.hazelcast.config.EvictionPolicy;
import com.hazelcast.config.MapConfig;
import com.hazelcast.config.MaxSizePolicy;
import org.springframework.context.annotation.Configuration;
#Configuration
public class ProductCacheConfig {
#Bean
public Config cacheConfig() {
return new Config()
.setInstanceName("hazel-instance")
.addMapConfig(new MapConfig()
.setName("product-cache")
.setTimeToLiveSeconds(3000)
.setMaxSizeConfig(new MaxSizeConfig(200, MaxSizePolicy.FREE_HEAP_SIZE))
.setEvictionPolicy(EvictionPolicy.LRU)
);
}
}
Thank you.

For version 4, use setEvictionConfig.
https://docs.hazelcast.org/docs/4.0/javadoc/com/hazelcast/config/EvictionConfig.html
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.hazelcast.config.Config;
import com.hazelcast.config.EvictionConfig;
import com.hazelcast.config.EvictionPolicy;
import com.hazelcast.config.MapConfig;
import com.hazelcast.config.MaxSizePolicy;
#Configuration
public class ProductCacheConfig {
#Bean
public Config cacheConfig() {
return new Config()
.setInstanceName("hazel-instance")
.addMapConfig(new MapConfig()
.setName("product-cache")
.setTimeToLiveSeconds(3000)
.setEvictionConfig(new EvictionConfig()
.setSize(200)
.setMaxSizePolicy(MaxSizePolicy.FREE_HEAP_SIZE)
.setEvictionPolicy(EvictionPolicy.LRU)
)
);
}
}

Which version of hazelcast are you using? More precisely, which is inherited from Spring. The setMaxSizeConfig method has been removed in later versions of hazelcast, for example 4.2 https://docs.hazelcast.org/docs/4.2/javadoc/com/hazelcast/config/MapConfig.html
But in version 3.6 it was still https://docs.hazelcast.org/docs/3.6/javadoc/com/hazelcast/config/MapConfig.html
The differences between versions 3 and 4 are significant.

Error when using #EnableWebFluxSecurity in springboot

Currently I´m trying to integrate JWT Authentication in an existing Spring Boot Webflux Project.
As a template I used this medium article: https://medium.com/#ard333/authentication-and-authorization-using-jwt-on-spring-webflux-29b81f813e78.
If I put the Annotation #EnableWebFluxSecurity inside my WebSecurityConfig the following error occurs:
The bean 'conversionServicePostProcessor', defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class], could not be registered. A bean with that name has already
been defined in class path resource [org/springframework/security/config/annotation/web/reactive/WebFluxSecurityConfiguration.class] and overriding is disabled.
Basicaly it´s the same error as in this post Error creating bean named `conversionServicePostProcessor` when using spring-boot-admin-server but the answers didn´t help for me and I can´t comment on answers.
In the previous post two solutions are mentioned that didn´t work for me.
Removing the websocket dependency didn´t help and setting "spring.main.allow-bean-definition-overriding=true" seems to override my own Configuration, because my route /auth/login/guest is still responding 401.
Here is my WebSecurityConfiguration:
package de.thm.arsnova.frag.jetzt.backend.config;
import de.thm.arsnova.frag.jetzt.backend.security.AuthenticationManager;
import de.thm.arsnova.frag.jetzt.backend.security.SecurityContextRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.security.config.annotation.method.configuration.EnableReactiveMethodSecurity;
import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
import org.springframework.security.config.web.server.ServerHttpSecurity;
import org.springframework.security.web.server.SecurityWebFilterChain;
import reactor.core.publisher.Mono;
#Configuration
#EnableWebFluxSecurity
#EnableReactiveMethodSecurity
public class WebSecurityConfig {
private final AuthenticationManager authenticationManager;
private final SecurityContextRepository securityContextRepository;
#Autowired
public WebSecurityConfig(AuthenticationManager authenticationManager, SecurityContextRepository securityContextRepository) {
this.authenticationManager = authenticationManager;
this.securityContextRepository = securityContextRepository;
}
#Bean
public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
return http
.exceptionHandling()
.authenticationEntryPoint((swe, e) ->
Mono.fromRunnable(() -> swe.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED))
).accessDeniedHandler((swe, e) ->
Mono.fromRunnable(() -> swe.getResponse().setStatusCode(HttpStatus.FORBIDDEN))
).and()
.csrf().disable()
.formLogin().disable()
.httpBasic().disable()
.authenticationManager(authenticationManager)
.securityContextRepository(securityContextRepository)
.authorizeExchange()
.pathMatchers(HttpMethod.OPTIONS).permitAll()
.pathMatchers("/auth/login/guest").permitAll()
.anyExchange().authenticated()
.and().build();
}
}
and my pom.xml
<?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>de.thm.arsnova.frag.jetzt</groupId>
<artifactId>frag.jetzt-backend</artifactId>
<version>0.1.0</version>
<properties>
<spring-boot-version>2.3.0.RELEASE</spring-boot-version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<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-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</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-r2dbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.r2dbc</groupId>
<artifactId>r2dbc-postgresql</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
<version>6.0.8</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-api</artifactId>
<version>0.11.1</version>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-impl</artifactId>
<version>0.11.1</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-jackson</artifactId>
<version>0.11.1</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- LogBack dependencies -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.5</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
<version>${spring-boot-version}</version>
</plugin>
<plugin>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-maven-plugin</artifactId>
<version>6.4.2</version>
<configuration>
<url>jdbc:postgresql://localhost:5432/fragjetzt</url>
<user>fragjetzt</user>
<password>fragjetzt</password>
</configuration>
</plugin>
</plugins>
</build>
</project>

You can add this in test properties/app properties:
spring.main.web-application-type=reactive
This begins to be required when servlet and webflux are both in classpath. Check here: https://docs.spring.io/spring-boot/docs/2.3.1.RELEASE/reference/html/spring-boot-features.html#boot-features-testing-spring-boot-applications-detecting-web-app-type

Method 'setLenient' of GsonBuilder not found in IntelliJ

I am trying to create a Jira plugin which consumes a REST web service using Retrofit and RxJava2. I created a prototyp of the rest client in a "normal" java programm with the following pom.
<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>Test</groupId>
<artifactId>Test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.5</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>adapter-rxjava2</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>retrofit</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>converter-gson</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>io.reactivex.rxjava2</groupId>
<artifactId>rxjava</artifactId>
<version>2.2.8</version>
</dependency>
</dependencies>
</project>
Here is the creation of the retrofit client:
public ClientService() {
OkHttpClient okHttpClient = new OkHttpClient().newBuilder().addInterceptor(new Interceptor() {
#Override
public okhttp3.Response intercept(Chain chain) throws IOException {
Request originalRequest = chain.request();
Request.Builder builder = originalRequest.newBuilder().header("Authorization", Credentials.basic(username, password));
Request newRequest = builder.build();
return chain.proceed(newRequest);
}
}).build();
Gson gson = new GsonBuilder().setLenient().create();
Retrofit retro = new Retrofit.Builder().baseUrl(API_URL).client(okHttpClient).addConverterFactory(GsonConverterFactory.create(gson))
.addCallAdapterFactory(RxJava2CallAdapterFactory.create()).build();
stmdApi = retro.create(StammdatenServiceApi.class);
}
The prototype works as expected.
Now I migrated this prototype into my jira plugin with the following pom.xml:
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.stmd</groupId>
<artifactId>stmd-import-new</artifactId>
<version>0.0.1-2</version>
<organization>
<name>company</name>
<url>http://www.company.com</url>
</organization>
<name>retrofit-proto</name>
<description>test of retrofit</description>
<packaging>atlassian-plugin</packaging>
<dependencies>
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-api</artifactId>
<version>${jira.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-annotation</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-runtime</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.context.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>${javax.activation.version}</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>adapter-rxjava2</artifactId>
<version>${retrofit.version}</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>retrofit</artifactId>
<version>${retrofit.version}</version>
</dependency>
<dependency>
<groupId>com.squareup.retrofit2</groupId>
<artifactId>converter-gson</artifactId>
<version>${retrofit.version}</version>
</dependency>
<dependency>
<groupId>io.reactivex.rxjava2</groupId>
<artifactId>rxjava</artifactId>
<version>${rx.java.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.atlassian.maven.plugins</groupId>
<artifactId>jira-maven-plugin</artifactId>
<version>${amps.version}</version>
<extensions>true</extensions>
<configuration>
<productVersion>${jira.version}</productVersion>
<productDataVersion>${jira.version}</productDataVersion>
<enableQuickReload>true</enableQuickReload>
<jvmArgs>-Xms2g -Xmx4g</jvmArgs>
<applications>
<application>
<applicationKey>jira-software</applicationKey>
<version>${jira.version}</version>
</application>
</applications>
<!-- See here for an explanation of default instructions: -->
<!-- https://developer.atlassian.com/docs/advanced-topics/configuration-of-instructions-in-atlassian-plugins -->
<instructions>
<Atlassian-Plugin-Key>${atlassian.plugin.key}</Atlassian-Plugin-Key>
<!-- Add package to export here -->
<Export-Package>
de.westlotto.jira.stmd.api,
</Export-Package>
<!-- Add package import here -->
<Import-Package>
android.*;resolution:=optional,
org.springframework.osgi.*;resolution:="optional",
org.eclipse.gemini.blueprint.*;resolution:="optional",
*;version="0";resolution:=optional
</Import-Package>
<!-- Ensure plugin is spring powered -->
<Spring-Context>*</Spring-Context>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-maven-plugin</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<executions>
<execution>
<goals>
<goal>atlassian-spring-scanner</goal>
</goals>
<phase>process-classes</phase>
</execution>
</executions>
<configuration>
<scannedDependencies>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-external-jar</artifactId>
</dependency>
</scannedDependencies>
<verbose>false</verbose>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<jira.version>7.13.1</jira.version>
<amps.version>8.0.0</amps.version>
<atlassian.spring.scanner.version>1.2.13</atlassian.spring.scanner.version>
<javax.activation.version>1.1.1</javax.activation.version>
<rx.java.version>2.2.8</rx.java.version>
<retrofit.version>2.5.0</retrofit.version>
<retrofit.osgi.version>2.5.0_1</retrofit.osgi.version>
<spring.context.version>4.2.5.RELEASE</spring.context.version>
<gson.version>2.8.5</gson.version>
<!-- This property ensures consistency between the key in atlassian-plugin.xml and the OSGi bundle's key. -->
<atlassian.plugin.key>${project.groupId}.${project.artifactId}</atlassian.plugin.key>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
</project>
This time there seems to be a dependency problem with the Gson lib. The method setLenient() of GsonBuilder in the line
Gson gson = new GsonBuilder().setLenient().create();
is not being resolved. Everything else is working just fine. I used the same dependencies in both poms as far as it is possible but the error still exists. I don't have an idea where to look now. IntelliJ is just not resolving this method.
I tried re-importing all dependencies and deleted the project cache but both did not work. Any ideas?

#Component Scan Not Working with #Component In Spring Boot across jar and war

I am having a common jar file in spring boot application this way,
package com.acc.api;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
#SpringBootApplication
#ComponentScan(basePackages = {"com.acc.api","service"})
public class ApicoreApplication {
public static void main(String[] args) {
ApplicationContext applicationContext = SpringApplication.run(ApicoreApplication.class, args);
for (String name: applicationContext.getBeanDefinitionNames()) {
System.out.println(name);
}
}
}
And components in this are,
package com.acc.api.core.utils;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
#Component
public class AccUtil {
#Autowired
private WebServiceEngine engine;
}
where WebServiceEngine is an third party api i cam calling.
And my pom entries are like these,
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.acc.api</groupId>
<artifactId>apicore</artifactId>
<version>0.0.1</version>
<name>apicore</name>
<description>apicore</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</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-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-util</artifactId>
<version>8.5.23</version>
</dependency>
<dependency>
<groupId>WebServiceEngine</groupId>
<artifactId>WebServiceEngine</artifactId>
<version>7.10.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.8.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Till this its fine, project is compiling and jar is getting created in target folder.
Now I am using this jar in the other spring boot war file this way,
<?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.acc.api</groupId>
<artifactId>maintenance</artifactId>
<packaging>war</packaging>
<parent>
<groupId>com.acc.api</groupId>
<artifactId>test</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</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-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
</dependency>
<dependency>
<groupId>com.acc.api</groupId>
<artifactId>apicore</artifactId>
<version>0.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-util</artifactId>
<version>8.5.23</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.8.1</version>
</dependency>
</dependencies>
<build>
<finalName>maintenance</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<id>copy war</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory></outputDirectory>
<filtering>true</filtering>
<overwrite>true</overwrite>
<resources>
<resource>
<directory>${project.build.directory}</directory>
<includes>
<include>${project.build.finalName}.war</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.7.RELEASE</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
<configuration>
<includeSystemScope>true</includeSystemScope>
</configuration>
</plugin>
</plugins>
</build>
</project>
And my springboot classes in war files are like these,
package com.acc.api;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
#SpringBootApplication
public class MaintenanceApplication {
public static void main(String[] args) {
SpringApplication.run(MaintenanceApplication.class, args);
}
}
package com.acc.api;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
public class ServletInitializer extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(MaintenanceApplication.class);
}
}
And my actual controller where i am using that above jar in this MaintenanceApplication war file is,
package com.acc.api.controller;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Import;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.acc.api.core.utils.AccUtil;
#Import({AccUtil.class})
#RestController
#RequestMapping("/STATUS")
public class StatusController {
private static Logger logger = LoggerFactory.getLogger(StatusController.class);
#Autowired
private AccUtil accUtil;
#Autowired
private ObjectMapper objMapper;
#RequestMapping(method=RequestMethod.GET, value="/fetchStatus")
public String getStatus(#PathVariable String processId){
String status = "";
try {
status = accUtil.getStats();
return status;
}
catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
IDE is not showing any errors, But I am getting below build errors when doing mvn clean install.
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project maintenance: Compilation failure: Compilation failure:
[ERROR] /src/main/java/com/acc/hpi/controller/MSRController.java:[13,30] package com.acc.api.core.utils does not exist
[ERROR] symbol: class AccUtils
Can anyone help me in this regard?
Thanks in Advance.

When using Spring Boot the spring-boot-maven-plugin will repackage and restructure the generated jar file. This jar file isn't useable as a dependency in other applications. Instead you need to instruct the spring-boot-maven-plugin to repackage the jar and leave the original artifact (and publish both to your maven repository).
The Spring Boot Reference Guide has a special section on how to do this.
If your jar is only a dependency and not runnable/executable by itself then just remove the spring-boot-maven-plugin and generate a regular jar.

You have imported com.acc.api.core.utils.AccUtil class twice in StatusController class:
import com.acc.api.core.utils.AccUtil;
#Import({AccUtil.class})
remove one of them and try again.

Spring boot only scans for packages/jars that are a dependency.
Either way, compile-time scope, or run-time scope(provided).
So, if you try to scan jars that are not compile time dependend(default scope), e.g. because you integrate on a interface, you are still dependend on it runtime, so the componentscan can find the implementing class to inject.
If you wire e.g. #RestControllers, the application may be in another package/jar then your controllers.
And though you dont have a compile time dependency of the application package to the controllers, you still need to have the jar runt-time loaded. Otherwise, the controller will not be scanned and found run-time.
<dependency>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version></version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version></version>
<scope>compile</scope>
</dependency>

No qualifying bean of type 'org.springframework.cloud.client.discovery.DiscoveryClient' available

What else is required for DiscoveryClient?
I am trying to fetch registered services to eureka using DiscoveryClient.
The standalone program works well, but the following code snippet is to be integrated with a web application which runs on JBoss.
Here is the code
DiscoveryClientController.java
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.stereotype.Controller;
#Controller
public class DiscoveryClientController {
#Autowired
private DiscoveryClient discoveryClient;
public DiscoveryClient getClient() {
return discoveryClient;
}
}
DiscoveryClientBean.java
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
public class DiscoveryClientBean {
#Bean
public DiscoveryClientController discoveryClientController() {
return new DiscoveryClientController();
}
}
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.test</groupId>
<artifactId>Discovery</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<build>
<!-- <sourceDirectory>src</sourceDirectory> -->
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<properties>
<spring.version>4.3.8.RELEASE</spring.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Dalston.SR3</spring-cloud.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
<relativePath />
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
<!-- <version>1.3.4.RELEASE</version> -->
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.6.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</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>
</dependencies>
</dependencyManagement>
</project>

The exception is telling you that you are missing the definition of the spring bean of type org.springframework.cloud.client.discovery.DiscoveryClient.
In this particular case, you don't have to define one yourself, but you have to enable it with the #EnableDiscoveryClient annotation on your #SpringBootApplication annotated class.
If you need extra details, please take a moment to read Service Registration and Discovery

you can use this controller aside your bootstrap config:
#RestController
class ServiceInstanceRestController {
#Autowired
private DiscoveryClient discoveryClient;
#RequestMapping("/service-instances/{applicationName}")
public List<ServiceInstance> serviceInstancesByApplicationName(
#PathVariable String applicationName) {
return this.discoveryClient.getInstances(applicationName);
}
}