Through the Maven configuration file pom.xml the required dependencies as well as the used Maven plug-in are configured. During the Create a New Project, the initial pom.xml is created. Now is a good time to check if everything is up to date.

Action Plan

Maven Project Properties

• Check that (currently) latest stable version 2.23.1 of Jersey is used and update it, if an older version is used.

    <properties>
        <jersey.version>2.23.1</jersey.version>
    </properties>

TIP Setting this project property jersey.version, does change the version of the managed dependency jersey-bom, look-up the dependency to check where the property is used. Using a property in the project can by the macro ${property-name}, so look for ${jersey.version}.

• Commit this change to git.
• Set the source and output encoding to UTF-8.
• Commit this change to git.

Maven Plug-ins

• Update the version of the Maven compiler plug-in version to 3.5.1 (currently latest version).

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>

• Commit this change to git.

Change the Java version to 1.8

The Maven archetype ``, does still use Java version 1.7, make the following changes, to update it to 1.8.

• Update the source and target version configured in the maven-compiler-plugin

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

• Do NOT commit this change, but also modify the Travis configuration to Java 1.8.

• Now commit this change to git - which a message like Updates to Java version 1.8