Unable to find a suitable main class, please add a 'mainClass' property, Spring boot
JavaSpringMavenJava Problem Overview
Hi friends i am developing a spring boot maven based project and and i have created a maven submodules but when i try to run my project it gives an error
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.2.5.RELEASE:run (default-cli) on project demo-jhipster: Unable to find a suitable main class, please add a 'mainClass' property -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.2.5.RELEASE:run (default-cli) on project demo-jhipster: Unable to find a suitable main class, please add a 'mainClass' property
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:160)
my parent pom and child pom is
<?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>
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>1.2.5.RELEASE</version>
<relativePath />
</parent>
<groupId>com.aquevix.demo</groupId>
<artifactId>demo-jhipster</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>demo_jhipster</name>
<prerequisites>
<maven>3.0.0</maven>
</prerequisites>
<modules>
<module>JhipsterSubmodule</module>
</modules>
<properties>
<assertj-core.version>3.1.0</assertj-core.version>
<awaitility.version>1.4.0</awaitility.version>
<commons-io.version>2.4</commons-io.version>
<commons-lang.version>2.6</commons-lang.version>
<gatling-maven-plugin.version>2.1.6</gatling-maven-plugin.version>
<gatling.version>2.1.6</gatling.version>
<hibernate.version>4.3.10.Final</hibernate.version>
<hikaricp.version>2.4.0</hikaricp.version>
<jacoco-maven-plugin.version>0.7.4.201502262128</jacoco-maven-plugin.version>
<java.version>1.8</java.version>
<javax.inject.version>1</javax.inject.version>
<joda-time-hibernate.version>1.4</joda-time-hibernate.version>
<liquibase-hibernate4.version>3.5</liquibase-hibernate4.version>
<liquibase-slf4j.version>1.2.1</liquibase-slf4j.version>
<liquibase.version>3.4.1</liquibase.version>
<mapstruct.version>1.0.0.CR1</mapstruct.version>
<maven-enforcer-plugin.version>1.3.1</maven-enforcer-plugin.version>
<maven-sortpom-plugin.version>2.3.0</maven-sortpom-plugin.version>
<maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<metrics-spark-reporter.version>1.2</metrics-spark-reporter.version>
<metrics-spring.version>3.1.2</metrics-spring.version>
<!-- Sonar properties -->
<project.testresult.directory>${project.build.directory}/test-results</project.testresult.directory>
<run.addResources>false</run.addResources>
<sonar-maven-plugin.version>2.6</sonar-maven-plugin.version>
<sonar.exclusions>src/main/webapp/assets/**/*.*, src/main/webapp/bower_components/**/*.*, src/main/webapp/dist/**/*.*</sonar.exclusions>
<sonar.jacoco.itReportPath>${project.testresult.directory}/coverage/jacoco/jacoco-it.exec</sonar.jacoco.itReportPath>
<sonar.jacoco.reportPath>${project.testresult.directory}/coverage/jacoco/jacoco.exec</sonar.jacoco.reportPath>
<sonar.java.codeCoveragePlugin>jacoco</sonar.java.codeCoveragePlugin>
<sonar.javascript.jstestdriver.reportsPath>${project.testresult.directory}/karma</sonar.javascript.jstestdriver.reportsPath>
<sonar.javascript.lcov.reportPath>${project.testresult.directory}/coverage/report-lcov/lcov.info</sonar.javascript.lcov.reportPath>
<sonar.sources>${project.basedir}/src/main/</sonar.sources>
<sonar.surefire.reportsPath>${project.testresult.directory}/surefire-reports</sonar.surefire.reportsPath>
<sonar.tests>${project.basedir}/src/test/</sonar.tests>
<spring-security.version>4.0.2.RELEASE</spring-security.version>
<springfox.version>2.0.3</springfox.version>
<usertype-core.version>4.0.0.GA</usertype-core.version>
</properties>
<dependencies>
// dependencies..
</dependencies>
<build>
<resources>
<resource>
<filtering>true</filtering>
<directory>src/main/resources</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<filtering>false</filtering>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.xml</exclude>
</excludes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>com.google.code.sortpom</groupId>
<artifactId>maven-sortpom-plugin</artifactId>
<version>${maven-sortpom-plugin.version}</version>
<executions>
<execution>
<phase>verify</phase>
<goals>
<goal>sort</goal>
</goals>
</execution>
</executions>
<configuration>
<sortProperties>true</sortProperties>
<nrOfIndentSpace>4</nrOfIndentSpace>
<sortDependencies>groupId,artifactId</sortDependencies>
<sortPlugins>groupId,artifactId</sortPlugins>
<keepBlankLines>true</keepBlankLines>
<expandEmptyElements>false</expandEmptyElements>
</configuration>
</plugin>
<plugin>
<groupId>io.gatling</groupId>
<artifactId>gatling-maven-plugin</artifactId>
<version>${gatling-maven-plugin.version}</version>
<configuration>
<configFolder>src/test/gatling/conf</configFolder>
<dataFolder>src/test/gatling/data</dataFolder>
<resultsFolder>target/gatling/results</resultsFolder>
<bodiesFolder>src/test/gatling/bodies</bodiesFolder>
<simulationsFolder>src/test/gatling/simulations</simulationsFolder>
<!-- This will force Gatling to ask which simulation to run
This is useful when you have multiple simulations -->
<simulationClass>*</simulationClass>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>${maven-enforcer-plugin.version}</version>
<executions>
<execution>
<id>enforce-versions</id>
<goals>
<goal>enforce</goal>
</goals>
</execution>
</executions>
<configuration>
<rules>
<requireMavenVersion>
<message>You are running an older version of Maven. JHipster requires at least Maven 3.0</message>
<version>[3.0.0,)</version>
</requireMavenVersion>
<requireJavaVersion>
<message>You are running an older version of Java. JHipster requires at least JDK ${java.version}</message>
<version>[${java.version}.0,)</version>
</requireJavaVersion>
</rules>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>-Xmx256m ${surefireArgLine}</argLine>
<!-- Force alphabetical order to have a reproducible build -->
<runOrder>alphabetical</runOrder>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<packagingExcludes>WEB-INF/lib/tomcat-*.jar</packagingExcludes>
</configuration>
</plugin>
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>2.2.4</version>
<executions>
<execution>
<id>process</id>
<phase>generate-sources</phase>
<goals>
<goal>process</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</dependency>
</dependencies>
<configuration>
<defaultOutputDirectory>${project.build.directory}/generated-sources</defaultOutputDirectory>
<processors>
<processor>org.mapstruct.ap.MappingProcessor</processor>
</processors>
<options>
<mapstruct.suppressGeneratorTimestamp>true</mapstruct.suppressGeneratorTimestamp>
<mapstruct.defaultComponentModel>spring</mapstruct.defaultComponentModel>
</options>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>${sonar-maven-plugin.version}</version>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco-maven-plugin.version}</version>
<executions>
<execution>
<id>pre-unit-tests</id>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration>
<!-- Sets the path to the file which contains the execution data. -->
<destFile>${project.testresult.directory}/coverage/jacoco/jacoco.exec</destFile>
<!-- Sets the name of the property containing the settings for JaCoCo runtime agent. -->
<propertyName>surefireArgLine</propertyName>
</configuration>
</execution>
<!-- Ensures that the code coverage report for unit tests is created after unit tests have been run -->
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>${project.testresult.directory}/coverage/jacoco/jacoco.exec</dataFile>
<outputDirectory>${project.testresult.directory}/coverage/jacoco</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>${liquibase.version}</version>
<dependencies>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.18.2-GA</version>
</dependency>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-hibernate4</artifactId>
<version>${liquibase-hibernate4.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
<configuration>
<changeLogFile>src/main/resources/config/liquibase/master.xml</changeLogFile>
<diffChangeLogFile>src/main/resources/config/liquibase/changelog/${maven.build.timestamp}_changelog.xml</diffChangeLogFile>
<driver />
<url />
<defaultSchemaName />
<username />
<password />
<referenceUrl>hibernate:spring:com.aquevix.demo.domain?dialect=</referenceUrl>
<verbose>true</verbose>
<logging>debug</logging>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<jvmArguments>-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005</jvmArguments>
<arguments>
<argument>--spring.profiles.active=dev</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<!-- log configuration -->
<logback.loglevel>DEBUG</logback.loglevel>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
</dependencies>
</profile>
<profile>
<id>fast</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<arguments>
<argument>--spring.profiles.active=dev,fast</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<!-- log configuration -->
<logback.loglevel>DEBUG</logback.loglevel>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-undertow</artifactId>
</dependency>
</dependencies>
</profile>
<profile>
<id>prod</id>
<build>
<plugins>
<plugin>
<groupId>com.github.trecloux</groupId>
<artifactId>yeoman-maven-plugin</artifactId>
<version>0.4</version>
<executions>
<execution>
<id>run-frontend-build</id>
<phase>generate-resources</phase>
<goals>
<goal>build</goal>
</goals>
<configuration>
<buildTool>grunt</buildTool>
<buildArgs>build --force --no-color</buildArgs>
</configuration>
</execution>
</executions>
<configuration>
<yeomanProjectDirectory>${project.basedir}</yeomanProjectDirectory>
</configuration>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
<configuration>
<filesets>
<fileset> <directory>src/main/webapp/dist</directory>
</fileset>
<fileset>
<directory>.tmp</directory>
</fileset>
<fileset>
<directory>node_modules</directory>
</fileset>
</filesets>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<arguments>
<argument>--spring.profiles.active=prod</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<!-- log configuration -->
<logback.loglevel>INFO</logback.loglevel>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
</dependencies>
</profile>
</profiles>
</project>
and chile pom is
<?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>
<artifactId>demo-jhipster</artifactId>
<groupId>com.aquevix.demo</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>JhipsterSubmodule1</artifactId>
</project>
I have googled but not found any solution please help in this regard!
Java Solutions
Solution 1 - Java
I believe the issue I was having is similar to yours. I have a multi module app using Spring Boot and only one Application.java (with main method).
I was struggling with it trying to start it up using Maven and I got the same result as yours (unable to find a suitable main class).
I spent several hours trying and changing stuff and after adding the property mainClass to the pom, it couldn't find it.
Then I decided to run the project not from the root project but from the project where the Application class is.
By doing this I was able to start up Spring Boot and everything works like a charm.
Updated
If you want to package the whole thing to be executed with java -jar file you can run the command below from the root project:
mvn clean package spring-boot:repackage
Don't forget to add the spring-boot-maven-plugin to your pom.
Solution 2 - Java
In my case I had in main pom:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
</parent>
which includes plugin spring-boot-maven-plugin.
I had to add to main pom to skip it:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
and then in module with ma Application class:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>false</skip>
</configuration>
</plugin>
Solution 3 - Java
Remove the maven build plugin code from the parent pom, which will be similar to the below, the below snippet should be only in the sub module pom where you have main class for spring boot application:
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
Solution 4 - Java
I solved this by two steps:
- In the parent module folder, run
mvn install - Go to the sub module folder which contains the mainClass you need, run
mvn clean spring-boot:start
Solution 5 - Java
Maybe you forgot to specify the main class to start.
In pom.xml:
<properties>
<start-class>com.ishanitech.controller.Application</start-class>
</properties>
Solution 6 - Java
If you are using IntellJ IDEA, maybe you can do it like this:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>add.your.main.class.application.reference.here</mainClass>
</configuration>
</plugin>
This solved my error.
Solution 7 - Java
Do you have a class in your app with a main method like:
public static void main(String[] args) {
SpringApplication.run(YourApplication.class, args);
}
Or do you even have multiple classes with main methods, in which case Spring can't figure out which one to use?
Solution 8 - Java
mvn clean spring-boot:start
…will give you the same error.
mvn clean package spring-boot:start
…is going to fix the issue by building the artifact before running sprint-boot:start.
Solution 9 - Java
If you don't want to create a fat jar, you can add follow lines in your pom.xml:
<properties>
<spring-boot.repackage.skip>true</spring-boot.repackage.skip>
</properties>
Solution 10 - Java
Use <pluginManagement> tag above the <plugins> tag
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</pluginManagement>
Solution 11 - Java
You can fix the problem by specifying the location of main as follows:
mvn spring-boot {com.ishanitech.controller.Application}:run
Solution 12 - Java
If you are trying to run a mvn spring-boot:run or just a mvn (as you seem to use JHipster and this is the way they wire it as default goal) in the root of your project, it is normal that if fail according that I think it can only be used in a plain spring boot project.
As your parent project seems to have severals Spring-Boot webapps, I guess that each one have their own main() launch class, and that you are just using a parent pom to factorize your poms and be able to package all your applications individually via a single command.
So, in that case, just run a mvn package, and not a mvn nor a mvn spring-boot:run.
Solution 13 - Java
I have also faced the same problem, but by adding the below line in my pom.xml I resolved the issue for my project:
<properties>
<start-class>com.hls.om.wp.AgencySearch</start-class>
</properties>
where the AgencySearch class has the main method for running the spring boot application.
Solution 14 - Java
If you follow the official guides and clone repository to local, then you got to folders, the guides let you cd initial, don't do that, cd complete and there will be no problem.
Solution 15 - Java
I had the same issue. In my case it was because I had my main class in a package that was not "parent" to my other packages which contained Controllers, Entities, etc. Something like this:
+- com.domain.myapp.app
| \- Application.java
+- com.domain.myapp.controllers
| \- AppController.java
+- com.domain.myapp.entities
| \- AppEntity.java
+- com.domain.myapp.services
| \- AppService.java
+- com.domain.myapp.repository
| \- AppRepo.java
The solution was to move my main class to a package which is hierarchily on top of the other packages since Spring Boot automatically searches this package and all sub-packages for classes with @Entity, @Component, @Service, @Repository annotations. The result was something like this:
+- com.domain.myapp
| \- Application.java
| +- com.domain.myapp.controllers
| | \- AppController.java
| +- com.domain.myapp.entities
| | \- AppEntity.java
| +- com.domain.myapp.services
| | \- AppService.java
| +- com.domain.myapp.repository
| | \- AppRepo.java
Hope it helps!
Regards
Solution 16 - Java
The only way that worked is to exactly have these respectively in your parent and module pom.xml:
PARENT:
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven
defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</pluginManagement>
</build>
MODULE
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<skip>false</skip>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</pluginManagement>
</build>
Solution 17 - Java
In my multi-module project, I did a cd into the sub-module and I used Maven's exec:java goal instead of spring-boot:run.
mvn clean package exec:java -Dexec.mainClass="a.b.c.Application"
For me, this was sufficient, but I'm not sure what spring-boot:run does differently.
Solution 18 - Java
I did as following and it resolved
<packaging>war</packaging>
<properties>
<java.version>1.8</java.version>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.test.skip>true</maven.test.skip>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
Solution 19 - Java
The solution is change the pom.xml file
from this
<packaging>pom</packaging>
to this
<packaging>war</packaging>
or another value that you need depending of your deployment method.