maven compile code example

Example 1: maven commands

mvn --version			
Prints out the version of Maven you are running.

mvn clean				
Clears the target directory into which Maven normally builds your project.

mvn package				
Builds the project and packages the resulting JAR file into the target directory

mvn package -Dmaven.test.skip=true	
Builds the project and packages the resulting JAR file into the target directory 
- without running the unit tests during the build.

mvn clean package	
Clears the target directory and Builds the project and packages the 
resulting JAR file into the target directory.

mvn clean package -Dmaven.test.skip=true	
Clears the target directory and builds the project and packages the 
resulting JAR file into the target directory - without running the unit 
tests during the build.

mvn verify	
Runs all integration tests found in the project.

mvn clean verify	
Cleans the target directory, and runs all integration tests found 
in the project.

mvn install	
Builds the project described by your Maven POM file and installs the 
resulting artifact (JAR) into your local Maven repository

mvn install -Dmaven.test.skip=true	
Builds the project described by your Maven POM file without 
running unit tests, and installs the resulting artifact (JAR) into 
your local Maven repository

mvn clean install	
Clears the target directory and builds the project described 
by your Maven POM file and installs the resulting artifact (JAR) 
into your local Maven repository

mvn clean install -Dmaven.test.skip=true	
Clears the target directory and builds the project described 
by your Maven POM file without running unit tests, and installs 
the resulting artifact (JAR) into your local Maven repository

mvn dependency:tree	Prints out the dependency tree for your project 
- based on the dependencies configured in the pom.xml file.

mvn dependency:tree -Dverbose	Prints out the dependency 
tree for your project - based on the dependencies configured 
in the pom.xml file. Includes repeated, transitive dependencies.

mvn dependency:tree -Dincludes=com.fasterxml.jackson.core	
Prints out the dependencies from your project which depend on the 
com.fasterxml.jackson.core artifact.

mvn dependency:tree -Dverbose -Dincludes=com.fasterxml.jackson.core	
Prints out the dependencies from your project which depend on the 
com.fasterxml.jackson.core artifact. Includes repeated, transitive dependencies.

mvn dependency:build-classpath	
Prints out the classpath needed to run your project (application) 
based on the dependencies configured in the pom.xml file.

Example 2: mvn build project

# one of the following
# compiles java classes
mvn compile  
# creates a jar in target folder
mavn package
# creates a jar in target folder and adds to your local .m2 repository
mvn install

Example 3: example of simple maven pom java

<properties>        <maven.compiler.release>11</maven.compiler.release>    </properties>     <build>        <pluginManagement>            <plugins>                <plugin>                    <groupId>org.apache.maven.plugins</groupId>                    <artifactId>maven-compiler-plugin</artifactId>                    <version>3.8.1</version>                </plugin>            </plugins>        </pluginManagement>    </build>