fix issue#100

[wangliang181230]

fixes #100

The maven-shade-plugin will use the project.getOriginalModel() to create the shaded-pom. So reset the version of the parent can fix #100.

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Relevant source code of maven-shade-plugin:

ShadeMojo.java

public class ShadeMojo extends AbstractMojo {
    //……

    private void createDependencyReducedPom( Set<String> artifactsToRemove ) {
        //……

        Model model = project.getOriginalModel();

        //……

        // Check to see if we have a reduction and if so rewrite the POM.
        rewriteDependencyReducedPomIfWeHaveReduction( dependencies, modified, transitiveDeps, model );
    }

    private void rewriteDependencyReducedPomIfWeHaveReduction( List<Dependency> dependencies, boolean modified, List<Dependency> transitiveDeps, Model model ) throws IOException, ProjectBuildingException, DependencyGraphBuilderException {
        //……

        try {
            PomWriter.write( w, model, true );
        } finally {
            //……
        }

        //……
    }

    //……
}

PomWriter.java

public class PomWriter {
    //……

    public static void write( Writer w, Model newModel, boolean namespaceDeclaration ) throws IOException {
        //……

        MavenJDOMWriter writer = new MavenJDOMWriter();

        //……

        writer.write( newModel, doc, w, format );
    }

    //……
}

MavenJDOMWriter.java

public class MavenJDOMWriter {
    //……

    protected void updateParent( Parent value, String xmlTag, Counter counter, Element element ) {
        boolean shouldExist = value != null;
        Element root = updateElement( counter, element, xmlTag, shouldExist );
        if ( shouldExist ) {
            Counter innerCount = new Counter( counter.getDepth() + 1 );
            findAndReplaceSimpleElement( innerCount, root, "artifactId", value.getArtifactId(), null );
            findAndReplaceSimpleElement( innerCount, root, "groupId", value.getGroupId(), null );
            findAndReplaceSimpleElement( innerCount, root, "version", value.getVersion(), null );
            findAndReplaceSimpleElement( innerCount, root, "relativePath", value.getRelativePath(), "../pom.xml" );
        }
    }

    //……

}

[wangliang181230]

The better PR: #281