Hi,
I have a problem which seems to be easy to resolve but I have difficulties
with it.
I am developing a custom plugin that contains a Mojo that doesn't requires a
project.
The Mojo is invoked from an empty working directory.
What the Mojo does is get a parameter defined in the plugin's POM and print
it to the log.
The problem is that I don't know how to pass this parameter to the Mojo.
Here is an example:
In the Mojo class I define the member param to be injected with the value of
a parameter called myParam.
/**
* @parameter expression="${myParam}"
*/
private String param;
When the Mojo executes it suppose to print the parameter's value
public void execute() throws MojoExecutionException, MojoFailureException {
getLog().info("Param value is: " + param);
}
In the plugin's POM I define the parameter
<project...>
...
<properties>
<myParam>Hello World!</myParam>
</properties>
...
</project>
The plugin is installed in the local repository.
When I invoke the Mojo I get the following message:
[0] Inside the definition for plugin 'maven-myplugin-plugin' specify the
following:
<configuration>
...
<myParam>VALUE</myParam>
</configuration>
-OR-
on the command line, specify: '-DmyParam=VALUE'
I tried to include my plugin in the plugins section in the POM of the plugin
itself (some kind of crazy recursive inclusion) as follows:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-myplugin-plugin</artifactId>
<configuration>
<myParam>Hello World!</myParam>
</configuration>
</plugin>
but I still get the same message.
If I invoke the plugin from a working directory that contains a pom.xml file
the defines this parameter the Mojo executes successfully.
Does anyone know how to define a parameter in a custom plugin and use the
value of this parameter in the Mojos of the plugin?
Shai
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