Jean Logeart Jean Logeart - 2 months ago 35
Java Question

Maven JAXB2 XJC plugin: M2E plugin execution not covered

I am using using the

jaxb2 xjc
plugin for generating java files from a
XSD
. Therefore I used to configure my pom.xml as follows:

<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>xjc</goal>
</goals>
</execution>
</executions>
<configuration>
<packageName>com.mypackage.model</packageName>
<schemaDirectory>${basedir}/src/main/resources/XSD</schemaDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>


I changed my developing environment to Eclipse Indigo and this does not work any more. The error says: "Plugin execution not covered by lifecycle configuration". I understand I have to define the execution of my plugin differently so that it works in my new environment.

I followed the instructions on this page M2E plugin execution not covered but the source files are not generated when executing the
generate-sources
phase.

Could anybody show me how to exactly refactor my pom so that my files are properly generated?

Thanks for helping!

Answer

It turns out that I did eventually find an answer! Eclipse's integration with Maven has known compatibility issues with numerous Maven plugins.

When you can successfully run a Maven build from the command-line outside of Eclipse, yet but Eclipse shows "execution not covered" errors in your POM, then try adding this plugin:

<build>
    ...
    <pluginManagement>
        <plugins>
            <!--This plugin's configuration is used to store Eclipse m2e settings 
                only. It has no influence on the Maven build itself. -->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>org.codehaus.mojo</groupId>
                                    <artifactId>jaxb2-maven-plugin</artifactId>
                                    <versionRange>[1.3,)</versionRange>
                                    <goals>
                                        <goal>xjc</goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <execute />
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
</build>

As indicated in the above comment, this plugin doesn't do anything outside of Eclipse. It simply tells Eclipse when to execute the JAXB plugin, since Eclipse isn't smart enough to figure that out on its own.

I found this snippet on another StackOverflow question, and adopted it to the "jaxb2-maven-plugin" plugin rather than the plugin at issue in the the other question.