Maven can't compile java 1.8

Question

I\'m trying to use maven to build a jar but I keep getting the error

ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile 
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Answer 1

If anybody has Eclipse Kepler SR2 and has an issue with Java 1.8 while building project with Maven, try to go to Eclipse Marketplace and search for plugin called Java 8 support for m2e for Eclipse Kepler SR2 this helped me, and now Maven compiles Java 1.8 source without problem.

Answer 2

Maven relies on the JAVA_HOME environment variable being set. Set it according to your OS and re-run your build.

Edit: Use export to set the variable.

export JAVA_HOME=/path/to/java

Answer 3

you can try configuration in compiler plugin. Its working on my local

      <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <executable><!--path-to-your-java8-home-directoru--></executable>
                <compilerVersion>1.8</compilerVersion>
            </configuration>
        </plugin>

Answer 4

As a MacOS user, open a Terminal and create or edit a file .bash_profile (in the directory of your user home) and put the following snippet there:

export JAVA_HOME=`/usr/libexec/java_home -v 1.8`

Save that file and reopen a Terminal instance. If you execute export as a command there, you should see a valid JAVA_HOME with the location of your JDK 8 installation. Restart your IDE afterwards and maven should be able to build you nice java target 1.8 code.

Answer 5

Yes it seems a bug in the maven-compiler-plugin.When I upgraded from 3.1 to 3.5.1, it works.

Answer 6

I'm not sure but can you try to update your maven.plugin version

try

<plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
            </configuration>
        <version>3.6.1</version>
</plugin>