Pass command line Params in mvn exec:exec - maven-plugin

Question

I am amazed that what should have been a very easy job is turning into a very annoying task for me. All i need is to pass few command line parameters to my maven exec:exec plugin. unfortunately hours of googling has not helped at all.
Here is my plugin
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2</version>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<configuration>
<executable>java</executable>
<arguments>
<argument>-classpath</argument>
<classpath />
<argument>-javaagent:${settings.localRepository}/org/springframework/spring-instrument/${spring.version}/spring-instrument-${spring.version}.jar</argument>
<argument>-Xmx256m</argument>
<argument>com.myPackage.Myclass</argument>
</arguments>
</configuration>
<executions>
<execution>
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
</plugin>
Now from the command prompt i am typing in:
mvn exec:exec -Dexec.args=-Dmy.property=myProperty
I also tried:
mvn exec:exec -Dexec.arguments=-Dmy.property=myProperty
And many other things. However nothing seems to be working. I know that exec:exec runs in a separate VM but as per the documentation -Dexec.args should work for me. Can someone please suggest where i am going wrong?

Answer 1

Two ways to pass command line arguments into mvn:exec:
Method 1, on the command line:
mvn exec:java -Dexec.mainClass="com.myPackage.myClass" -Dexec.args="command line arguments"
Method 2, in the maven POM file:
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<configuration>
<mainClass>com.myPackage.myClass</mainClass>
<commandlineArgs>command line arguments</commandlineArgs>
</configuration>
</plugin>
</plugins>
</build>
Then on the command line all you have to do is run:
mvn exec:java
Good luck.

Answer 2

I was able to get JVM args working for exec:exec using the following after reading this article:
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<executable>java</executable>
<arguments>
<argument>-Dhttp.proxyHost=myproxy.example.com</argument>
<argument>-Dhttp.proxyPort=8080</argument>
<argument>-classpath</argument>
<classpath />
<argument>com.example.Main</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>

Answer 3

why not use system property?
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.3.2</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>bobo.Abc</mainClass>
<arguments>
<argument>argument1</argument>
</arguments>
<systemProperties>
<systemProperty>
<key>jvmProperty1</key>
<value>dev</value>
</systemProperty>
</systemProperties>
</configuration>
</plugin>

Answer 4

If you want to pass command line arguments to Java VM use <commandlineArgs> tag instead of <arguments>. Maven Exec Plugin
Cheers

Answer 5

I use the following command line setting to pass arguements to my Main-Class with the exceution plugin.
mvn clean install -Dexec.arguments="arg0"

Answer 6

I don't think the selected answer solves the problem. Here is my somewhat hacky solution that works:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2</version>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<configuration>
<executable>java</executable>
<arguments>
<argument>-classpath</argument>
<classpath />
<argument>-Xmx256m</argument>
<argument>com.myPackage.Myclass</argument>
<argument>${myProperty1}</argument> <!-- variable args here!!! -->
<argument>${myProperty2}</argument>
</arguments>
</configuration>
<executions>
<execution>
<id>myExecution</id> <!-- defined an id here! -->
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
</plugin>
Now you can simply execute passing the arguments.
mvn exec:exec#myExecution -DmyProperty1=XXX -DmyProperty2=YYY

Answer 7

The problem is that you use -Dexec.args on the command line and it overrides the <arguments> given in pom.xml. You can use either of them, not both.