Develop Reference

VSCode and Java Setup: No compatible Jar

I'm setting up Java within VSCode and just can't seem to get the JREs correct. Can someone please lend a pair of eyes and point out what I'm missing?
2 errors I'm seeing:
Build path specifies execution environment JavaSE-1.8. There are no JREs installed in the workspace that are strictly compatible with this environment.
The compiler compliance specified is 1.8 but a JRE 11 is used
OS: Windows 10
Java version installed: JDK 11 (version 11.0.2)
Environment Variables:
JAVA_HOME > C:\Program Files\Java\jdk-11.0.12
MAVEN_HOME > C:\Program Files\apache-maven-3.8.2
PATH > %MAVEN_HOME%\bin
POM:
<?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>sqa.tan</groupId>
<artifactId>automation</artifactId>
<version>1.0-SNAPSHOT</version>
<name>automation</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>io.appium</groupId>
<artifactId>java-client</artifactId>
<version>7.5.1</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-gmail</artifactId>
<version>v1-rev20200919-1.31.0</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-oauth2</artifactId>
<version>v2-rev20200213-1.31.0</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client-jetty</artifactId>
<version>1.31.5</version>
</dependency>
<dependency>
<groupId>io.github.bonigarcia</groupId>
<artifactId>webdrivermanager</artifactId>
<version>4.4.3</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-1.2-api</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.141.59</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>7.4.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<!-- 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>
<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>
<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>
</project>
Screenshot of a few jars in the JRE System Library

You have specified JAVA 1.8 in your POM file but you have Java 11 installed on your system.
Make the below changes to the POM file:
Replace:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
To,
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
Also, replace
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
To,
<configuration>
<source>11</source>
<target>11</target>
</configuration>

Dependency 'javax:javaee-api:6.0' not found

I'm a computer science student and I'm currently making my first steps in using JEE. To retry an example of my study material, I tried to build a web-application using IntelliJ Community. As there is no offical possibility to do so with the community version, I tried to use maven following this tutorial: https://www.shortn0tes.com/2017/01/tutorial-intellij-idea-community.html
Now I get an error about the dependency injection of javax in the pom.xml:
Dependency 'javax:javaee-api:6.0' not found
Is there anything that I need to add/configure in my IntelliJ IDE? I know that the tutorial is maybe not super modern anymore, but I'd just like to follow the example of my university material.
Thank you very much!
Here 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>org.example</groupId>
<artifactId>test</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>test Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>test</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>8888</port>
<path>/</path>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_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-war-plugin</artifactId>
<version>3.2.2</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>
</plugins>
</pluginManagement>
</build>
</project>

Executing spring-boot:run when not inheriting from spring-boot-starter-parent

I have a spring-boot maven project, which cannot have spring-boot-starter-parent as a parent due to organizational restrictions. I came across the following answer which helped me with compiling, testing and packaging an executable jar.
However when I try to execute spring-boot:run i receive the following error:
No plugin found for prefix 'spring-boot' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories
The following comment in the answer seems to point to away to fix this:
The code snippet above is sufficient to get the dependency management features. If you want plugins (like spring-boot:run) you need to confute those separately. You can copy paste from the Boot parent if you want
However after adding the proposed section to my pom file I still get the same error. My pom files can be found below:
Parent 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>group.id.foo</groupId>
<artifactId>foo_artifact</artifactId>
<version>version_01</version>
<packaging>pom</packaging>
<name>${project.artifactId}</name>
<prerequisites>
<maven>2.2.1</maven>
</prerequisites>
<modules>
<module>module_01</module>
</modules>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<!--compilerArgument>-Dfile.encoding=ISO-8859-1</compilerArgument-->
<encoding>${project.build.sourceEncoding}</encoding>
<sourceEncoding>${project.build.sourceEncoding}</sourceEncoding>
</configuration>
<executions>
<execution>
<id>default</id>
<phase>compile</phase>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.4</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Child pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<properties>
<java.version>1.8</java.version>
<main.basedir>${basedir}/../..</main.basedir>
<ing.continuous-delivery.version>00.04.04</ing.continuous-delivery.version>
<maven.assembly.version>2.3</maven.assembly.version>
</properties>
<parent>
<groupId>group.id.foo</groupId>
<artifactId>foo_artifact</artifactId>
<version>version_01</version>
</parent>
<groupId>group.id.foo</groupId>
<artifactId>${project.parent.artifactId}_app</artifactId>
<version>${project.parent.version}</version>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.5.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- tag::spring -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<!-- end::spring -->
<!-- tag::web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<!-- end::web -->
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>${start-class}</mainClass>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.3.RELEASE</version>
</plugin>
</plugins>
</build>
</project>
Thanks!

Eclipse Maven Java import not resolved

I am having a problem with Eclipse Luna-1 resolving dependencies using the M2 Maven extension to Eclipse. See screen shot below, I appear to have a build path that has in it the correct .jar files, and these file are present in the .m2 repository. All shown in the screenshot. The build does not appear to be looking in the repository JAR files to satisfy the imports.
Screen shot of eclipse problem
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>org.ladbury</groupId>
<artifactId>NavigationDisplay</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Navigation Display</name>
<description>receives navigation data via UDF and displays the results</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<client.directory>C:\Users\GJWood\navigate</client.directory>
<client.main.class>main.NavClient</client.main.class>
</properties>
<dependencies>
<dependency>
<groupId>org.jfree</groupId>
<artifactId>jcommon</artifactId>
<version>1.0.23</version>
</dependency>
<dependency>
<groupId>org.jfree</groupId>
<artifactId>jfreechart</artifactId>
<version>1.0.19</version>
</dependency>
</dependencies>
<build>
<directory>target</directory>
<outputDirectory>target/classes</outputDirectory>
<finalName>${project.artifactId}-${project.version}</finalName>
<testOutputDirectory>target/test-classes</testOutputDirectory>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<archive>
<manifest>
<mainClass>${client.main.class}</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>

Package missing on maven build

I'm trying to run a JUnit test in Travis CI using Maven, but every attempt makes me face the same error:
[ERROR] \luiz.kill\Workspace\hawickjames\src\main\java\com\lzkill\main\CountElementaryCircuitsFromRFC.java:[3,24] error: package org.jgrapht.graph does not exist
I also see this when I use m2e to fire Maven, the dependencies don't even show up Eclipse as if the download was not processed.
It really looks like a javac problem. How can I make the download succeed and the compiler find the right jars?
Here's my 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.lzkill</groupId>
<artifactId>myArtifact</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>...</name>
<description>...</description>
<url>...</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.jgrapht</groupId>
<artifactId>jgrapht</artifactId>
<version>0.9.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.3.2</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12</version>
<configuration>
<testFailureIgnore>false</testFailureIgnore>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9.1</version>
<configuration>
<show>protected</show>
<windowtitle>...</windowtitle>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>

You did not specify any dependencies only which version to use if you declare a dependency.
Remove the the dependencyManagement tags and you are set.
DependencyManagement helps you resolve version conflicts and is a good idea in a parent pom of multiple related projects. But it does not declare a dependency.