Does AspectJ (Mojo's Maven Plugin in particular) perform optimization?

I am benchmarking a simple application that makes use of Mojo's AspectJ Maven Plugin. I noticed that just by including the aspectj dependencies in my pom.xml, the benchmark program runs 3x faster.

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <aspectj.version>1.8.13</aspectj.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.8.13</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.13</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjtools</artifactId>
            <version>1.8.13</version>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>aspectj-maven-plugin</artifactId>
                <version>1.11</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>       <!-- use this goal to weave all your main classes -->
<!--                            <goal>test-compile</goal>  &lt;!&ndash; use this goal to weave all your test classes &ndash;&gt;-->
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.aspectj</groupId>
                        <artifactId>aspectjrt</artifactId>
                        <version>1.8.13</version>
                    </dependency>
                    <dependency>
                        <groupId>org.aspectj</groupId>
                        <artifactId>aspectjtools</artifactId>
                        <version>1.8.13</version>
                    </dependency>

                </dependencies>
                <configuration>
                    <complianceLevel>1.8</complianceLevel>
                    <source>1.8</source>
                    <target>1.8</target>
                    <forceAjcCompile>true</forceAjcCompile>
                    <showWeaveInfo>true</showWeaveInfo>
                    <verbose>true</verbose>
                    <Xlint>ignore</Xlint>
                    <encoding>UTF-8</encoding>
                </configuration>

            </plugin>
        </plugins>
    </build>

My benchmark consists of a lot of simple loops such as:

        long res = 0;
        for(int i = 0; i < 1000; i++){
            for(int j = 0; j < 1000; j++){
                res += i*j + i*i + j*j*j;
            }
       }

When I remove these loops I do not observe the same speedup effect. Has anyone encountered similar experiences? Does AspectJ/Mojo's plugin for some reason perform optimizations on loops like this?