Maven testResources not being applied in a multi module/profile project - java

I have a Maven multi module/profile project whose test resources are apparently not being applied when running the test module. These resources define which data base the aplication will work (one is my create.sql script file):
DROP DATABASE IF EXISTS "${db.name}";
CREATE DATABASE "${db.name}"
WITH TEMPLATE = template0
OWNER = postgres
ENCODING = 'UTF8'
TABLESPACE = pg_default
CONNECTION LIMIT = -1;
The 'project' structure is:
project/ pom.xml //packing: pom
|
+-- core/ pom.xml //packing: war
|
+-- module-a/ pom.xml //packing: jar
|
+-- module-b/ pom.xml //packing: jar
|
+-- test/ pom.xml //packing: jar
+-- ** src/test/resources/create.sql **
The root 'project' pom is defined as:
<?xml ... maven-4.0.0.xsd">
<!-- ... -->
<packaging>pom</packaging>
<properties>
<!-- global properties -->
</properties>
<modules>
<module>core</module>
<module>module-a</module>
<module>module-b</module>
<module>test</module> <!-- CAN BE REMOVED -->
</modules>
<repositories>
<!-- some repo declarations -->
</repositories>
<dependencies>
<!-- all general dependencies -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
The 'core' definition is the war application itself:
<?xml ... maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<!-- 'project' is the parent -->
</parent>
<!-- ... -->
<packaging>war</packaging>
<profiles>
<profile>
<id>dev-a</id>
<properties>
<profileName>dev-a</profileName>
**<db.name>db</db.name>**
<skipTests>true</skipTests>
</properties>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<dependencies>
<dependency>
<groupId>...</groupId>
<artifactId>module-a</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</profile>
<profile>
<id>dev-b</id>
<properties>
<profileName>dev-b</profileName>
**<db.name>db</db.name>**
<skipTests>true</skipTests>
</properties>
<dependencies>
<dependency>
<groupId>...</groupId>
<artifactId>module-b</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</profile>
<profile>
<id>test-a</id>
<properties>
<profileName>test-a</profileName>
**<db.name>db_test</db.name>**
<selenium.context>http://127.0.0.1:9999/${profileName}</selenium.context>
</properties>
<dependencies>
<dependency>
<groupId>...</groupId>
<artifactId>module-a</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</profile>
<profile>
<id>test-b</id>
<properties>
<profileName>test-b</profileName>
**<db.name>db_test</db.name>**
<selenium.context>http://127.0.0.1:9999/${profileName}</selenium.context>
</properties>
<dependencies>
<dependency>
<groupId>...</groupId>
<artifactId>module-b</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</profile>
</profiles>
<build>
<finalName>${profileName}##${app.version}.${maven.build.timestamp}</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.5</version>
<configuration>
<attachClasses>true</attachClasses>
<failOnMissingWebXml>false</failOnMissingWebXml>
<useCache>false</useCache>
<archive>
<manifest> <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
<manifestEntries>
<Implementation-Version>${project.artifactId}#${maven.build.timestamp}</Implementation-Version>
</manifestEntries>
</archive>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*</include>
</includes>
</resource>
</resources>
<testResources>
<testResource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*</include>
</includes>
</testResource>
</testResources>
</build>
The module definitions are quite simple and similar (module-b is supressed):
<?xml ... maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<!-- 'project' is the parent -->
</parent>
<artifactId>module-a</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
And finally my test module, a jar module that encapsultes some cucumber tests and sql script files:
<?xml ... maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<!-- 'project' is the parent -->
</parent>
<!-- ... -->
<packaging>jar</packaging>
<dependencies>
<!-- All test dependencies + ... -->
<dependency>
<groupId>...</groupId>
<artifactId>module-a</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>...</groupId>
<artifactId>module-b</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>...</groupId>
<artifactId>core</artifactId>
<version>1.0-SNAPSHOT</version>
<classifier>classes</classifier>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<goals>
<goal>test-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.17</version>
<configuration>
<includes>
<include>**/*IT.java</include>
</includes>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.17</version>
<executions>
<execution>
<id>default-test</id>
<configuration>
<skipTests>true</skipTests>
</configuration>
</execution>
<execution>
<id>surefire-it</id>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<skipTests>false</skipTests>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<server>Tomcat 7</server>
<path>/${project.artifactId}</path>
</configuration>
<executions>
<execution>
<id>start-tomcat</id>
<phase>pre-integration-test</phase>
<goals>
<goal>run-war-only</goal>
</goals>
<configuration>
<fork>true</fork>
<port>9999</port>
</configuration>
</execution>
<execution>
<id>stop-tomcat</id>
<phase>post-integration-test</phase>
<goals>
<goal>shutdown</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>start-selenium</id>
<phase>pre-integration-test</phase>
<configuration>
<target>
<exec executable="cmd.exe" spawn="true">
<arg value="/u/c" />
<arg value="${basedir}/src/test/resources/start-selenium.bat" />
<arg line="${basedir}/target/${project.build.finalName}/WEB-INF/lib/selenium-server-standalone-${selenium.version}.jar" />
<arg line="-timeout 30 -port 4444" />
</exec>
</target>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
With this structure when I run dev-a or dev-b I got two different war files with all properties correctly replaced, but when I execute test-a or test-b the resources inside my test module are not affected by the properties inside test profiles, the ${db.name} remains intact
So I have tried another approach moving the test profiles from core to test module and the replacements are done for the test module with the right database name (db_test) but as a downside the core war module don't (remains with db).
It's relatively ease to notice that my structure is wrong, but the gist is: what modification is necessary to have the war and test-jar files using the same key property for the right profile (dev|test)? How should I redeclare the modules and their hierarchy? Aforesaid, I'm trying to achieve:
runnig dev-a: A war file using db + module-a.jar
runnig dev-b: A war file using db + module-b.jar
runnig test-a: A war file using db_test + module-a.jar + test-jar using the same database db_test
runnig test-b: A war file using db_test + module-b.jar + test-jar using the same database db_test
Best Regards.


I have achieved a partial solution between what I think it would be the ideal approach (WITH test module) and the pratical solution (maven tasks generating build or executing integrated tests).
So I moved the test classes and resources from test module to the war module and removed the module test in the parent pom.

Related

Maven - Non-resolvable parent POM, Could not find artifact SNAPSHOT

I am trying to build a maven project. I don't have experience in building Java projects, and this is my first maven project. I have tried to build the project from both the terminal and the IntelliJ, and I am receiving this error when I run mvn clean install:
[FATAL] Non-resolvable parent POM for my.project.tk.at.batcher:batcher:${revision}:
Could not find artifact my.project.tk.at:parentpom:pom:5.20.0-SNAPSHOT and
'parent.relativePath' points at wrong local POM
This is the pom.xml file:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>my.project.tk.at</groupId>
<artifactId>parentpom</artifactId>
<version>5.20.0-SNAPSHOT</version>
</parent>
<groupId>my.project.tk.at.batcher</groupId>
<artifactId>batcher</artifactId>
<name>batcher</name>
<packaging>pom</packaging>
<version>${revision}</version>
<scm>
<connection>scm:git:ssh://git#git.my.project.no/autfor/jobscheduler.git</connection>
<developerConnection>scm:git:ssh://git#git.my.project.no/autfor/jobscheduler.git</developerConnection>
<url>https://git.my.project.no/projects/AUTFOR/repos/jobscheduler</url>
</scm>
<properties>
<maven.javadoc.failOnError>false</maven.javadoc.failOnError>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<version.patch>0</version.patch>
<revision>${version.major}.${version.minor}.${version.patch}-SNAPSHOT</revision>
</properties>
<!-- Shared build properties -->
<modules>
<module>batcher-common</module>
<module>batcher-sql</module>
<module>scheduler</module>
<module>notifier-batch</module>
<module>notifier-examtime-batch</module>
<module>notifier-attest-batch</module>
<module>ssb-batch</module>
<module>alert-user-batch</module>
<module>delete-history-batch</module>
<module>alert-user-about-delivery-batch</module>
<module>batcher-main</module>
<module>delete-quarantine-batch</module>
</modules>
<distributionManagement>
<repository>
<id>svv-artrepo-release</id>
<name>svv-artrepo-release</name>
<url>https://artrepo.remote-project.no/artifactory/libs-release-local</url>
</repository>
<snapshotRepository>
<id>svv-artrepo-snapshots</id>
<name>svv-artrepo-snapshots</name>
<url>https://artrepo.remote-project.no/artifactory/libs-snapshot-local</url>
</snapshotRepository>
<!-- <repository>-->
<!-- <id>nexus-release-repository</id>-->
<!-- <name>Nexus release repo</name>-->
<!-- <url>http://10.250.4.100:8081/nexus/content/repositories/releases</url>-->
<!-- </repository>-->
<!-- <snapshotRepository>-->
<!-- <id>nexus-snapshot-repository</id>-->
<!-- <url>http://10.250.4.100:8081/nexus/content/repositories/snapshots</url>-->
<!-- <layout>default</layout>-->
<!-- </snapshotRepository>-->
</distributionManagement>
<build>
<pluginManagement>
<plugins>
<plugin>
<!-- copy from common master, since ${project.build.directory} gets false value if it is not duplicated -->
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.5</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-prepare-agent-integration</id>
<goals>
<goal>prepare-agent-integration</goal>
</goals>
<configuration>
<propertyName>failsafeArgLine</propertyName>
<destFile>${project.build.directory}/jacoco.exec</destFile>
<append>true</append>
</configuration>
</execution>
<execution>
<id>default-report</id>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- Exclude all generated sources -->
<excludes>
<exclude>**/wsgen/**/*</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>flatten-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>codecoverage</id>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>integration-test</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>owasp</id>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>${maven-project-info-reports-plugin.version}</version>
</plugin>
<plugin>
<groupId>org.owasp</groupId>
<artifactId>dependency-check-maven</artifactId>
<version>${org.owasp.dependency-check-maven.version}</version>
<reportSets>
<reportSet>
<reports>
<report>aggregate</report>
</reports>
</reportSet>
</reportSets>
</plugin>
</plugins>
</reporting>
</profile>
</profiles>
</project>
How can I fix this error?

The error says that the parent POM my.project.tk.at:parentpom:pom:5.20.0-SNAPSHOT cannot be found.
So it is not in your local repository (you haven't built it locally and you haven't used it before) and it is also not in any of the remote repositories you specified (if you specified any in your settings.xml or pom.xml).
So either correct the parent POM to the one you are really looking for or see why the desired parent POM is not in the specified repositories. Also read the helpful comments of Stanislav Bashkyrtsev.

Is there a way to increment a property value of a Maven pom.xml?

I'm creating this gRPC project where I have to launch a server and register it on Zookeeper.
I should be able to launch multiple instances of the server, but every new instance needs to have a new port or else will conflict with the servers that are already registered.
I have this maven pom.xml file where I have a property value <ins.i>, that should be incremented by 1 for every instance that is running. This property turns to be the last digit of <server.port>. If i could increment this value by 1 it would solve my problem.
I've searched by similar questions and I couldn't find any similar.
<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>
<!-- Please replace 'CXX' below with your C (campus) with A (Alameda) /
T (Tagus); and your group number with two digits. Then delete this comment. -->
<groupId>pt.sayf.CXX</groupId>
<artifactId>SAYF</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>sentry-server</artifactId>
<packaging>jar</packaging>
<name>${project.artifactId}</name>
<properties>
<mainclass>pt.sayf.sentry.server.SentryServer</mainclass>
<!-- instance number -->
<ins.i>1</ins.i>
<!-- name and coordinates -->
<sentry_loc.name>IST_Taguspark</sentry_loc.name>
<sentry.xcoord>38.737613</sentry.xcoord>
<sentry.ycoord>-9.303164</sentry.ycoord>
<server.host>localhost</server.host>
<server.port>809${ins.i}</server.port>
<sentry.path>/grpc/sayf/${sentry.name}/${ins.i}</sentry.path>
</properties>
<dependencies>
<!-- contract brings gRPC dependencies with it -->
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>sentry-contract</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>depot-contract</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<testResources>
<testResource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
</testResource>
</testResources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>${version.maven-resources-plugin}</version>
<configuration>
<nonFilteredFileExtensions>
<nonFilteredFileExtension>jks</nonFilteredFileExtension>
</nonFilteredFileExtensions>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${version.exec-maven-plugin}</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- to prevent deprecation warning: -->
<killAfter>-1</killAfter>
<mainClass>${mainclass}</mainClass>
<arguments>
<argument>${zookeeper.url}</argument>
<argument>${server.host}</argument>
<argument>${server.port}</argument>
<argument>${sentry.path}</argument>
<argument>${sentry_loc.name}</argument>
<argument>${sentry.xcoord}</argument>
<argument>${sentry.ycoord}</argument>
</arguments>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>appassembler-maven-plugin</artifactId>
<version>${version.appassembler-maven-plugin}</version>
<executions>
<execution>
<phase>install</phase>
<goals>
<goal>assemble</goal>
</goals>
</execution>
</executions>
<configuration>
<programs>
<program>
<mainClass>${mainclass}</mainClass>
<id>${project.artifactId}</id>
</program>
</programs>
</configuration>
</plugin>
</plugins>
</build>
</project>

Pom.xml not importing selenium

I am trying to import the java selenium libraries however, I am receiving this issue:
[Java] package org.openqa.selenium.chrome does not exist
And in my pom.xml file:
<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>javafx</groupId>
<artifactId>javafx</artifactId>
<version>javafx</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.14.0</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>3.0.0</version>
<dependencies>
<dependency>
<groupId>com.puppycrawl.tools</groupId>
<artifactId>checkstyle</artifactId>
<version>8.10</version>
</dependency>
<dependency>
<groupId>com.github.ngeor</groupId>
<artifactId>checkstyle-rules</artifactId>
<version>1.1.0</version>
</dependency>
</dependencies>
<configuration>
<configLocation>com/github/ngeor/checkstyle.xml</configLocation>
<includeTestSourceDirectory>true</includeTestSourceDirectory>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
</plugin>
<!--
You can run jacoco in the default profile with:
mvn jacoco:prepare-agent test jacoco:report
-->
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.1</version>
</plugin>
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<configuration>
<configLocation>com/github/ngeor/checkstyle.xml</configLocation>
<includeTestSourceDirectory>true</includeTestSourceDirectory>
</configuration>
</plugin>
</plugins>
</reporting>
<profiles>
<!--
This profile enables jacoco when unit tests are run.
You can run it with mvn -P jacoco test.
It also activates itself on Travis.
-->
<profile>
<id>jacoco</id>
<activation>
<property>
<name>env.TRAVIS</name>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<executions>
<execution>
<id>prepare-agent</id>
<phase>validate</phase>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<!--
For the Travis profile:
- we want to break the build on any checkstyle violation.
- we want to be able to publish coverage report to coveralls.
-->
<profile>
<id>travis</id>
<activation>
<property>
<name>env.TRAVIS</name>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<executions>
<execution>
<id>checkstyle</id>
<phase>test</phase>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.eluder.coveralls</groupId>
<artifactId>coveralls-maven-plugin</artifactId>
<version>4.3.0</version>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
I am using Visual Studio code and I keep updating the pom.xml file. However, I am still unable to make my java file recognize selenium. I extracted the dependency code directly from the website and put it under the <dependencies> tag.

You POM is correct . I am able to import dependencies from eclipse using shared pom.

just clean the repository [delete files related to the things downloaded by maven] and try again mvn clean install. Try to use some IDE which can clearly explain the issues in setting up... [Note : Also check whether setting.xml of maven is correctly linked with Visual Code]

Images not exported to executable jar file

I'm modifying Weka, an open-source Maven project, and my modifications are running perfectly on eclipse. However, when I export to an executable jar file, I get a null pointer exception, because it's not able to find the images I created and added to the project upon getImage() calls.
It seems that this is a rather common problem with jar files, so I tried using the URL method to load, but upon further investigation, when I look into the jar file with SecureZIP, the images(.png) that I added to the project are not even in the jar (however, the images (.png) that were in the original open source distribution were, despite the fact that all the images were in the same folder and of the same type (.png) designated by the build path in the source). Is there something I'm forgetting to do? Why are my images not exporting to the jar, but the other images in the folder are?
Library Handling is: "Extract required libraries into generated JAR".
Images are in src/main/java/weka/gui.
<?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>nz.ac.waikato.cms.weka</groupId>
<artifactId>weka-stable</artifactId>
<version>3.8.1-SNAPSHOT</version>
<!-- weka-version -->
<packaging>jar</packaging>
<name>weka-stable</name>
<description>The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This is the stable version. Apart from bugfixes, this version does not receive any other updates.
</description>
<url>http://www.cms.waikato.ac.nz/ml/weka/</url>
<organization>
<name>University of Waikato, Hamilton, NZ</name>
<url>http://www.waikato.ac.nz/</url>
</organization>
<licenses>
<license>
<name>GNU General Public License 3</name>
<url>http://www.gnu.org/licenses/gpl-3.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
<developers>
<developer>
<id>wekateam</id>
<name>The WEKA Team</name>
<email>wekalist#list.waikato.ac.nz</email>
</developer>
</developers>
<mailingLists>
<mailingList>
<name>wekalist</name>
<subscribe>https://list.waikato.ac.nz/mailman/listinfo/wekalist</subscribe>
<unsubscribe>https://list.waikato.ac.nz/mailman/listinfo/wekalist</unsubscribe>
<archive>https://list.waikato.ac.nz/mailman/htdig/wekalist/</archive>
</mailingList>
</mailingLists>
<parent>
<groupId>org.sonatype.oss</groupId>
<artifactId>oss-parent</artifactId>
<version>7</version>
</parent>
<scm>
<connection>scm:svn:https://svn.cms.waikato.ac.nz/svn/weka/branches/stable-3-8/weka</connection>
<developerConnection>scm:svn:https://svn.cms.waikato.ac.nz/svn/weka/branches/stable-3-8/weka</developerConnection>
<url>https://svn.cms.waikato.ac.nz/svn/weka/branches/stable-3-8/weka</url>
</scm>
<profiles>
<profile>
<id>release-sign-artifacts</id>
<activation>
<property>
<name>performRelease</name>
<value>true</value>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<!-- used for skipping tests -->
<id>no-tests</id>
<properties>
<skipTests>true</skipTests>
</properties>
</profile>
</profiles>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>nz.ac.waikato.cms.weka.thirdparty</groupId>
<artifactId>java-cup-11b</artifactId>
<version>2015.03.26</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>nz.ac.waikato.cms.weka.thirdparty</groupId>
<artifactId>java-cup-11b-runtime</artifactId>
<version>2015.03.26</version>
</dependency>
<dependency>
<groupId>nz.ac.waikato.cms.weka.thirdparty</groupId>
<artifactId>bounce</artifactId>
<version>0.18</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.10</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.googlecode.matrix-toolkits-java</groupId>
<artifactId>mtj</artifactId>
<version>1.0.4</version>
</dependency>
<dependency>
<groupId>net.sourceforge.f2j</groupId>
<artifactId>arpack_combined_all</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>com.googlecode.netlib-java</groupId>
<artifactId>netlib-java</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<weka.main.class>weka.gui.GUIChooser</weka.main.class>
</properties>
<build>
<directory>dist</directory>
<outputDirectory>build/classes</outputDirectory>
<testOutputDirectory>build/testcases</testOutputDirectory>
<resources>
<resource>
<targetPath>${project.build.outputDirectory}</targetPath>
<directory>${project.build.sourceDirectory}</directory>
<includes>
<include>**/*.arff</include>
<include>**/*.cost</include>
<include>**/*.cup</include>
<include>**/*.default</include>
<include>**/*.excludes</include>
<include>**/*.flex</include>
<include>**/*.gif</include>
<include>**/*.icns</include>
<include>**/*.ico</include>
<include>**/*.jflex</include>
<include>**/*.jpeg</include>
<include>**/*.jpg</include>
<include>**/*.kfml</include>
<include>**/*.matrix</include>
<include>**/*.png</include>
<include>**/*.properties</include>
<include>**/*.props</include>
<include>**/*.txt</include>
<include>**/*.xml</include>
<include>**/DatabaseUtils.props.*</include>
<include>weka/gui/beans/README</include>
</includes>
</resource>
<resource>
<targetPath>${project.build.testOutputDirectory}</targetPath>
<directory>${project.build.testSourceDirectory}</directory>
<includes>
<include>**/*.arff</include>
<include>**/*.cost</include>
<include>**/*.cup</include>
<include>**/*.default</include>
<include>**/*.excludes</include>
<include>**/*.flex</include>
<include>**/*.gif</include>
<include>**/*.icns</include>
<include>**/*.ico</include>
<include>**/*.jflex</include>
<include>**/*.jpeg</include>
<include>**/*.jpg</include>
<include>**/*.kfml</include>
<include>**/*.matrix</include>
<include>**/*.png</include>
<include>**/*.properties</include>
<include>**/*.props</include>
<include>**/*.txt</include>
<include>**/*.xml</include>
<include>**/DatabaseUtils.props.*</include>
<include>weka/gui/beans/README</include>
</includes>
</resource>
</resources>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.7.2</version>
<configuration>
<includes>
<include>**/*Test.java</include>
</includes>
<disableXmlReport>true</disableXmlReport>
<redirectTestOutputToFile>true</redirectTestOutputToFile>
<systemPropertyVariables>
<weka.test.Regression.root>src/test/resources/wekarefs</weka.test.Regression.root>
<weka.test.maventest>true</weka.test.maventest>
<user.timezone>Pacific/Auckland</user.timezone>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.1</version>
<configuration>
<tagBase>https://svn.cms.waikato.ac.nz/svn/weka/tags</tagBase>
<useReleaseProfile>false</useReleaseProfile>
<!-- tests are performed with the ant build file, hence skipped here. -->
<preparationGoals>clean verify -P no-tests</preparationGoals>
<goals>deploy -P no-tests</goals>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>2.4.1</version>
<configuration>
<filesets>
<fileset>
<directory>.</directory>
<includes>
<include>**/*~</include>
<include>**/.attach_pid*</include>
<include>**/hs_err_pid*</include>
</includes>
<followSymlinks>false</followSymlinks>
</fileset>
</filesets>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<archive>
<manifest>
<mainClass>${weka.main.class}</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<goals>
<goal>test-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.1.2</version>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<excludeResources>true</excludeResources>
</configuration>
</execution>
<execution>
<id>attach-test-sources</id>
<goals>
<goal>test-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.8.1</version>
<configuration>
<maxmemory>1000m</maxmemory>
<subpackages>weka:org</subpackages>
<show>public</show>
<outputDirectory>${project.basedir}/doc</outputDirectory>
<!-- when using Java 8, use this setting to avoid overly strict javadoclet -->
<!--additionalparam>-Xdoclint:none</additionalparam-->
</configuration>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

Unable to find a suitable main class, please add a 'mainClass' property, Spring boot

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!

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>

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.

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>

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

Maybe you forgot to specify the main class to start.
In pom.xml:
<properties>
<start-class>com.ishanitech.controller.Application</start-class>
</properties>

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.

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?

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.

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>

The issue is that spring looks for the main class in all modules of a multi module application.
If you have a multi-module application just add this to pom.xml of other modules which do not have the main class
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
And main Class module pom.xml add
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>false</skip>
</configuration>
</plugin>
Side note: Try to exclude didn't work for me

Use <pluginManagement> tag above the <plugins> tag
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</pluginManagement>

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.

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.

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.

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

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>

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.

You can fix the problem by specifying the location of main as follows:
mvn spring-boot {com.ishanitech.controller.Application}:run

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>

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.

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