How to use

getCause

method

in

org.apache.maven.archetype.ArchetypeGenerationResult

private ArchetypeGenerationRequest generate( String archetypeGroupId, String archetypeArtifactId, String archetypeVersion, File archetypeFile, Properties properties, String basedir ) throws IntegrationTestFailure
{
  //@formatter:off
  ArchetypeGenerationRequest request =
    new ArchetypeGenerationRequest().setArchetypeGroupId( archetypeGroupId ).setArchetypeArtifactId(
      archetypeArtifactId ).setArchetypeVersion( archetypeVersion ).setGroupId(
      properties.getProperty( Constants.GROUP_ID ) ).setArtifactId(
      properties.getProperty( Constants.ARTIFACT_ID ) ).setVersion(
      properties.getProperty( Constants.VERSION ) ).setPackage(
      properties.getProperty( Constants.PACKAGE ) ).setOutputDirectory( basedir ).setProperties(
      properties );
  //@formatter:on
  ArchetypeGenerationResult result = new ArchetypeGenerationResult();
  archetypeGenerator.generateArchetype( request, archetypeFile, result );
  if ( result.getCause() != null )
  {
    if ( result.getCause() instanceof ArchetypeNotConfigured )
    {
      ArchetypeNotConfigured anc = (ArchetypeNotConfigured) result.getCause();
      throw new IntegrationTestFailure(
        "Missing required properties in archetype.properties: " + StringUtils.join(
          anc.getMissingProperties().iterator(), ", " ), anc );
    }
    throw new IntegrationTestFailure( result.getCause().getMessage(), result.getCause() );
  }
  return request;
}

private ArchetypeGenerationRequest generate( String archetypeGroupId, String archetypeArtifactId, String archetypeVersion, File archetypeFile, Properties properties, String basedir ) throws IntegrationTestFailure
{
  //@formatter:off
  ArchetypeGenerationRequest request =
    new ArchetypeGenerationRequest().setArchetypeGroupId( archetypeGroupId ).setArchetypeArtifactId(
      archetypeArtifactId ).setArchetypeVersion( archetypeVersion ).setGroupId(
      properties.getProperty( Constants.GROUP_ID ) ).setArtifactId(
      properties.getProperty( Constants.ARTIFACT_ID ) ).setVersion(
      properties.getProperty( Constants.VERSION ) ).setPackage(
      properties.getProperty( Constants.PACKAGE ) ).setOutputDirectory( basedir ).setProperties(
      properties );
  //@formatter:on
  ArchetypeGenerationResult result = new ArchetypeGenerationResult();
  archetypeGenerator.generateArchetype( request, archetypeFile, result );
  if ( result.getCause() != null )
  {
    if ( result.getCause() instanceof ArchetypeNotConfigured )
    {
      ArchetypeNotConfigured anc = (ArchetypeNotConfigured) result.getCause();
      throw new IntegrationTestFailure(
        "Missing required properties in archetype.properties: " + StringUtils.join(
          anc.getMissingProperties().iterator(), ", " ), anc );
    }
    throw new IntegrationTestFailure( result.getCause().getMessage(), result.getCause() );
  }
  return request;
}

if ( generationResult.getCause() != null )
  throw new MojoFailureException( generationResult.getCause(), generationResult.getCause().getMessage(),
                  generationResult.getCause().getMessage() );

if (generationResult.getCause() != null) {
  throw new MojoFailureException(generationResult.getCause(), generationResult.getCause().getMessage(),
      generationResult.getCause().getMessage());

if ( generationResult.getCause() != null )
  throw new MojoFailureException( generationResult.getCause(), generationResult.getCause().getMessage(),
                  generationResult.getCause().getMessage() );

if (generationResult.getCause() != null) {
  throw generationResult.getCause();