AspectJ with IntelliJ IDEA

So you’re trying to use AspectJ in a Maven project with IntelliJ IDEA. You add the basic dependency and plugin to your POM file, when IDEA gives you this message:

IDEA was unable to find AspectJ compiler JAR among plugin dependencies.
Please check Settings | Compiler | Java Compiler

The solution is to add a dependency on aspectjtools. For example:

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjtools</artifactId>
    <version>1.6.9</version>
</dependency>

When IDEA imports the POM changes it will automatically set the AJC compiler and perform some extra indexing work, and then you’re done!