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POHow to programatically invoke a maven dependency plugin
 

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    <p>I am trying to invoke maven-dependency-plugin programatically. i am using maven 3 version. the problem is that when i invoke it through pluginManager.executeMojo(session, execution), i receive the following error message:</p> <pre><code>[ERROR] **The parameters 'project', 'local', 'remoteRepos', 'reactorProjects' for goal org.apache.maven.plugins:maven-dependency-plugin:2.1:unpack are missing or invalid** **org.apache.maven.plugin.PluginParameterException: The parameters 'project', 'local', 'remoteRepos', 'reactorProjects' for goal org.apache.maven.plugins:maven-dependency-plugin:2.1:unpack are missing or invalid** at org.apache.maven.plugin.internal.DefaultMavenPluginManager .populatePluginFields(DefaultMavenPluginManager.java:518) at org.apache.maven.plugin.internal.DefaultMavenPluginManager .getConfiguredMojo(DefaultMavenPluginManager.java:471) at org.apache.maven.plugin.DefaultBuildPluginManager .executeMojo(DefaultBuildPluginManager.java:99) at com.sap.ldi.qi.osgi.OSGiManifesrMfHandlerMojo .invokeMavenDependencyPlugin(OSGiManifesrMfHandlerMojo.java:139) at com.sap.ldi.qi.osgi.OSGiManifesrMfHandlerMojo .execute(OSGiManifesrMfHandlerMojo.java:100) at org.apache.maven.plugin.DefaultBuildPluginManager .executeMojo(DefaultBuildPluginManager.java:110) at org.apache.maven.lifecycle.internal.MojoExecutor .execute(MojoExecutor.java:144) at org.apache.maven.lifecycle.internal.MojoExecutor .execute(MojoExecutor.java:87) at org.apache.maven.lifecycle.internal.MojoExecutor .execute(MojoExecutor.java:79) -- many lines stripped from stack trace -- [INFO] ---------------------------------------------------------------------- [INFO] BUILD FAILURE [INFO] ---------------------------------------------------------------------- [INFO] Total time: 17.938s [INFO] Finished at: Mon Nov 22 10:27:42 EET 2010 [INFO] Final Memory: 12M/23M [INFO] ---------------------------------------------------------------------- [ERROR] Failed to execute goal com.sap.ldi.qi:osgi-manifest-handler-plugin:0.0.1-SNAPSHOT:handle (osgi-manifest-handler plugin) on project com.sap.ldi.demo.calc .cmd.tests: The parameters 'project', 'local', 'remoteRepos', 'reactorProjects' for goal org.apache.maven.plugins:maven-dependency-plugin:2.1:unpack are missing or invalid -&gt; [Help 1] -- stripped rest -- </code></pre> <p>As I know, the only required parameter for the unpack goal of maven dependency plugin is artifactItems. I set the plugin configuration by using PluginExecution.setConfiguration() method. It seems that this plugin configuration is not correctly set. Do you have any idea why this exception is thrown?</p> <p>Here is the configuration that I am using:</p> <pre><code>&lt;configuration&gt; &lt;artifactItems&gt; &lt;artifactItem&gt; &lt;groupId&gt;com.sap.ldi.demo.calc&lt;/groupId&gt; &lt;artifactId&gt;com.sap.ldi.demo.calc.cmd&lt;/artifactId&gt; &lt;version&gt;0.1.2-SNAPSHOT&lt;/version&gt; &lt;type&gt;jar&lt;/type&gt; &lt;overWrite&gt;true&lt;/overWrite&gt; &lt;outputDirectory&gt;target/demo-calc-stuff&lt;/outputDirectory&gt; &lt;includes&gt;**/*.*&lt;/includes&gt; &lt;/artifactItem&gt; &lt;/artifactItems&gt; &lt;/configuration&gt; </code></pre> <p>Thanks</p> <hr> <p>One correction from my side. The used Maven version is not Maven 3.0 but Maven 3.0-beta-1. I see that <code>BuildPluginManager.loadPlugin()</code> in version 3.0-beta-1 has two args, and the same method in version 3.0 has three. I am wondering, does anyone tried to invoke a maven plugin programatically with maven 3.0 or maven 3.0-beta-1. I am still trying to invoke it with maven 3.0-beta-1, but it still returns the same exception as pasted above.</p>
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