Annotations are not supported in -source 1.3 – Maven

Problem

Building a Maven project, hit following annotation error message in Maven output console.

[INFO] Compilation failure
E:\workspace\serlvetdemo\src\main\java\com\mkyong\AppServletContextListener.java:
[8,2] annotations are not supported in -source 1.3 
(use -source 5 or higher to enable annotations)
        @Override

Solution

Maven default is using JDK1.3 for the project compilation, building or packaging (mvn compile, install). Since JDK1.3 is not support annotation, if your project has annotation, you need to configure your Maven to use the latest JDK version. The solution is very simple, just include the Maven compiler plugin and specify the JDK version. For example,

<project ....>
 <build>
  <plugins>
	<plugin>
		<artifactId>maven-compiler-plugin</artifactId>
		<version>2.3.2</version>
		<configuration>
			<source>1.6</source>
			<target>1.6</target>
		</configuration>
	</plugin>
   </plugins>
  </build>
</project>

Above declaration tell Maven to use JDK 1.6.

Reference

  1. http://maven.apache.org/plugins/maven-compiler-plugin/
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About the Author

mkyong
Founder of Mkyong.com and HostingCompass.com, love Java and open source stuff. Follow him on Twitter, or befriend him on Facebook or Google Plus. If you like my tutorials, consider make a donation to these charities.

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  • Gururaj

    Thanks for all the suggestion, tutorials and code that you share. Really great help to whole world. Appreciate your time and efforts

  • Juan Pablo

    Mkyong you are the best…

  • Adrian Klimczak

    Thx man!!

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  • michoser

    sometimes this site seems more powerful than googleit principle :)

  • http://ea.com jeremie

    Thanks.
    I struggled with that for more than a day. This really helped!

  • Clem

    Thank you,
    it solves the problem with my project which uses annotations and need JDK 1.5

  • Shirish

    Incredibly annoying problem. Thanks! :)

  • http://www.velaia.de Daniel – velaia GmbH

    Hi, this helped with an issue I had. Locally everything worked fine, but after committing to Hudson build server the project build failed. Thanks for posting and I hope the “hudson” keyword will help people find the solution here faster.