How to set default Maven's Java in Eclipse?

java eclipse maven m2e maven-archetype

14,443

Solution 1

The m2eclipse plugin uses the settings from the POM. So you need to add this to your POM:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-compiler-plugin</artifactId>
  <version>3.1</version>
  <configuration>
    <source>1.6</source>
    <target>1.6</target>
  </configuration>
</plugin>

Solution 2

You should add plugin in your pom.xml like below :

 <build>
    <pluginManagement>
      <plugins>
         <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>your version</version>
        <executions>
          <execution>
            <id>default-testCompile</id>
            <phase>test-compile</phase>
            <goals>
              <goal>testCompile</goal>
            </goals>
          </execution>
          <execution>
            <id>default-compile</id>
            <phase>compile</phase>
            <goals>
              <goal>compile</goal>
            </goals>
          </execution>
        </executions>
         <configuration>
            <source>1.7</source>
            <target>1.7</target>
         </configuration>
      </plugin>
      </plugins>
    </pluginManagement>
  </build>

And then you can see your project marked with error.In this case, Right click your project directory->Maven->Update Project option will work

Solution 3

You will have to manually update the pom.xml with the following plugin because 1.5 is the default.

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.8</version>
<configuration>
    <classpathContainers>
       <classpathContainer>
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6
       </classpathContainer>
    </classpathContainers>
</configuration>
</plugin>

Refrences:

14,443

Author by

Suzan Cioc

Not to be offended

Updated on July 25, 2022

Comments

Suzan Cioc almost 2 years

If I create new Maven project in Eclipse and base it on quickstart archetype, it appears with J2SE-1.5 in Java Build Path window and 1.5 in Java Compiler / JDK Compliance window.

So, I usually have to change this to other Java manually.

Where are these default setting come from?

How to change to 1.6 or 1.7?
khmarbaise over 10 years

The maven-compiler-plugin has the version 3.1 in the meantime.
Nicolas over 10 years

My mistake ;) ... Fixed!
khmarbaise over 10 years

Only the configuration part is necessary.
khmarbaise over 10 years

Only the configuration of the maven-compiler-plugin is needed. Apart from that it will set the launcher within Eclipse but not the compiler which is used by maven or to be more accurate which compatibility is used of the installed jdk.
Jules almost 10 years

Maven newbie here: I have put this in my pom.xml file, and chosen "update project" from the maven menu when I right click on the project, but nothing has changed. Is there something else I have to do to get eclipse to update the java version it's using for my project?
NikolaDjokic over 8 years

Maven->Update Project was necessary for me.