How to create a runnable jar file with AspectJ?

Question

I'm using Eclipse to compile java code with aspectj. My code (with the aspect) works fine, but I'm struglling to create a jar file of this my code.

For example, if I select Export > Runnable JAR file, in the combo box I don't see my project (all the other project that not based on aspecj are showing up in the combo box).

Answer 1

If you like to have repeatable builds which work from command line as well as from IDEs like Eclipse or IntelliJ IDEA, I recommend a Maven build. The onejar-maven-plugin creates a runnable JAR including AspectJ runtime and all other declared dependencies for you:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>de.scrum_master.stackoverflow</groupId>
    <artifactId>my_project</artifactId>
    <version>1.0.0-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.source-target.version>1.7</java.source-target.version>
        <aspectj.version>1.8.8</aspectj.version>
        <main-class>de.scrum_master.app.Application</main-class>
    </properties>

    <build>

        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.3</version>
                    <configuration>
                        <source>${java.source-target.version}</source>
                        <target>${java.source-target.version}</target>
                        <!-- IMPORTANT -->
                        <useIncrementalCompilation>false</useIncrementalCompilation>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>aspectj-maven-plugin</artifactId>
                    <version>1.8</version>
                    <configuration>
                        <!--<showWeaveInfo>true</showWeaveInfo>-->
                        <source>${java.source-target.version}</source>
                        <target>${java.source-target.version}</target>
                        <Xlint>ignore</Xlint>
                        <complianceLevel>${java.source-target.version}</complianceLevel>
                        <encoding>${project.build.sourceEncoding}</encoding>
                        <!--<verbose>true</verbose>-->
                        <!--<warn>constructorName,packageDefaultMethod,deprecation,maskedCatchBlocks,unusedLocals,unusedArguments,unusedImport</warn>-->
                    </configuration>
                    <executions>
                        <execution>
                            <!-- IMPORTANT -->
                            <phase>process-sources</phase>
                            <goals>
                                <goal>compile</goal>
                                <goal>test-compile</goal>
                            </goals>
                        </execution>
                    </executions>
                    <dependencies>
                        <dependency>
                            <groupId>org.aspectj</groupId>
                            <artifactId>aspectjtools</artifactId>
                            <version>${aspectj.version}</version>
                        </dependency>
                    </dependencies>
                </plugin>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>exec-maven-plugin</artifactId>
                    <version>1.4.0</version>
                    <configuration>
                        <mainClass>${main-class}</mainClass>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.dstovall</groupId>
                    <artifactId>onejar-maven-plugin</artifactId>
                    <version>1.4.4</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>one-jar</goal>
                            </goals>
                        </execution>
                    </executions>
                    <configuration>
                        <onejarVersion>0.96</onejarVersion>
                        <mainClass>${main-class}</mainClass>
                        <attachToBuild>true</attachToBuild>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>

        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>aspectj-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.dstovall</groupId>
                <artifactId>onejar-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
            </plugin>
        </plugins>

    </build>

    <pluginRepositories>
        <pluginRepository>
            <id>OneJAR googlecode.com</id>
            <url>http://onejar-maven-plugin.googlecode.com/svn/mavenrepo</url>
        </pluginRepository>
    </pluginRepositories>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>${aspectj.version}</version>
                <scope>runtime</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
        </dependency>
    </dependencies>

    <organization>
        <name>Scrum-Master.de - Agile Project Management</name>
        <url>http://scrum-master.de</url>
    </organization>
</project>

Answer 2

Try to create a normal run configuration with the same start class as your AspectJ run configuration. When you create your runnable JAR, select the normal run configuration. The resulting JAR will have AspectJ support.

You can find here the answer : https://www.eclipse.org/forums/index.php/t/204968/

Answer 3

The runnable jar exporter only works with Java Application type launch configs , but that shouldn't be a problem. Create a normal Java Application launch config with your main class and export the runnable jar based on that newly created launch config. It should work.