urls[i].toExternalForm() ) );

                        }

                        suppressExceptionOnClose = false;
                    }
                    catch ( final SocketTimeoutException e )
                    {
                        String message = Messages.getMessage( e );
                        message = Messages.getMessage( "resourceTimeout", message != null ? " " + message : "" );

                        if ( resource.isOptional() )
                        {
                            this.getProject().log( message, e, Project.MSG_WARN );
                        }
                        else
                        {
                            throw new BuildException( message, e, this.getLocation() );
                        }
                    }
                    catch ( final IOException e )
                    {
                        String message = Messages.getMessage( e );
                        message = Messages.getMessage( "resourceFailure", message != null ? " " + message : "" );

                        if ( resource.isOptional() )
                        {
                            this.getProject().log( message, e, Project.MSG_WARN );
                        }
                        else
                        {
                            throw new BuildException( message, e, this.getLocation() );
                        }
                    }
                    finally
                    {
                        try
                        {
                            if ( in != null )
                            {
                                in.close();
                            }
                        }
                        catch ( final IOException e )
                        {
                            if ( suppressExceptionOnClose )
                            {
                                this.logMessage( Level.SEVERE, Messages.getMessage( e ), e );
                            }
                            else
                            {
                                throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
                            }
                        }
                    }
                }

                suppressExceptionOnClose = true;
            }

            for ( String defaultExclude : classLoader.getModletExcludes() )

            marshaller.marshal( new ObjectFactory().createModlet( mergedModlet ), this.getModletFile() );
            suppressExceptionOnClose = false;
        }
        catch ( final URISyntaxException e )
        {
            throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
        }
        catch ( final JAXBException e )
        {
            String message = Messages.getMessage( e );
            if ( message == null )
            {
                message = Messages.getMessage( e.getLinkedException() );
            }

            throw new BuildException( message, e, this.getLocation() );
        }
        catch ( final TransformerConfigurationException e )
        {
            throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
        }
        catch ( final TransformerException e )
        {
            throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
        }
        catch ( final ModelException e )
        {
            throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
        }
        finally
        {
            try
            {
                if ( classLoader != null )
                {
                    classLoader.close();
                }
            }
            catch ( final IOException e )
            {
                if ( suppressExceptionOnClose )
                {
                    this.logMessage( Level.SEVERE, Messages.getMessage( e ), e );
                }
                else
                {
                    throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
                }
            }
        }
    }

    /**
     * Tests inclusion of a given modlet based on property {@code modletIncludes}.
     *
     * @param modlet The modlet to test.
     *
     * @return {@code true}, if {@code modlet} is included based on property {@code modletIncludes}.
     *
     * @throws NullPointerException if {@code modlet} is {@code null}.
     *
     * @see #getModletIncludes()
     */
    public boolean isModletIncluded( final Modlet modlet )

                    validationReport = tool.validateModelObjects( context, this.getClassesDirectory() );

                    if ( validationReport != null )
                    {
                        this.logValidationReport( context, validationReport );

                        if ( !validationReport.isModelValid() )
                        {
                            throw new ModelException( Messages.getMessage( "invalidModel", this.getModel() ) );
                        }
                    }
                }

                suppressExceptionOnClose = false;
            }
            else
            {
                throw new ModelException( Messages.getMessage( "invalidModel", this.getModel() ) );
            }
        }
        catch ( final IOException e )
        {
            throw new ClassProcessingException( Messages.getMessage( e ), e, this.getLocation() );
        }
        catch ( final JAXBException e )
        {
            throw new ClassProcessingException( Messages.getMessage( e ), e, this.getLocation() );
        }
        catch ( final ModelException e )
        {
            throw new ClassProcessingException( Messages.getMessage( e ), e, this.getLocation() );
        }
        finally
        {
            try
            {
                if ( classLoader != null )
                {
                    classLoader.close();
                }
            }
            catch ( final IOException e )
            {
                if ( suppressExceptionOnClose )
                {
                    this.logMessage( Level.SEVERE, Messages.getMessage( e ), e );
                }
                else
                {
                    throw new ClassProcessingException( Messages.getMessage( e ), e, this.getLocation() );
                }
            }
        }
    }

    /** {@inheritDoc} */
    @Override
    public ValidateClassesTask clone()

    }

    /**
     * Gets the global transformation parameters to apply.
     * <p>This accessor method returns a reference to the live list, not a snapshot. Therefore any modification you make
     * to the returned list will be present inside the object. This is why there is no {@code set} method for the
     * transformation parameters property.</p>
     *
     * @return The global transformation parameters to apply.
     *
     * @see #createTransformationParameter()
     * @see #getTransformer(org.jomc.ant.types.TransformerResourceType)
     */
    public final List<KeyValueType> getTransformationParameters()
    {
        if ( this.transformationParameters == null )
        {
            this.transformationParameters = new LinkedList<KeyValueType>();
        }

        return this.transformationParameters;
    }

    /**
     * Creates a new {@code transformationParameter} element instance.
     *
     * @return A new {@code transformationParameter} element instance.
     *
     * @see #getTransformationParameters()
     */
    public KeyValueType createTransformationParameter()
    {
        final KeyValueType transformationParameter = new KeyValueType();
        this.getTransformationParameters().add( transformationParameter );
        return transformationParameter;
    }

    /**
     * Gets the global transformation parameter resources to apply.
     * <p>This accessor method returns a reference to the live list, not a snapshot. Therefore any modification you make
     * to the returned list will be present inside the object. This is why there is no {@code set} method for the
     * transformation parameter resources property.</p>
     *
     * @return The global transformation parameter resources to apply.
     *
     * @see #createTransformationParameterResource()
     * @see #getTransformer(org.jomc.ant.types.TransformerResourceType)
     */
    public final List<PropertiesResourceType> getTransformationParameterResources()
    {
        if ( this.transformationParameterResources == null )
        {
            this.transformationParameterResources = new LinkedList<PropertiesResourceType>();
        }

        return this.transformationParameterResources;
    }

    /**
     * Creates a new {@code transformationParameterResource} element instance.
     *
     * @return A new {@code transformationParameterResource} element instance.
     *
     * @see #getTransformationParameterResources()
     */
    public PropertiesResourceType createTransformationParameterResource()
    {
        final PropertiesResourceType transformationParameterResource = new PropertiesResourceType();
        this.getTransformationParameterResources().add( transformationParameterResource );
        return transformationParameterResource;
    }

    /**
     * Gets the global transformation output properties to apply.
     * <p>This accessor method returns a reference to the live list, not a snapshot. Therefore any modification you make
     * to the returned list will be present inside the object. This is why there is no {@code set} method for the
     * transformation output properties property.</p>
     *
     * @return The global transformation output properties to apply.
     *
     * @see #createTransformationOutputProperty()
     */
    public final List<KeyValueType> getTransformationOutputProperties()
    {
        if ( this.transformationOutputProperties == null )
        {
            this.transformationOutputProperties = new LinkedList<KeyValueType>();
        }

        return this.transformationOutputProperties;
    }

    /**
     * Creates a new {@code transformationOutputProperty} element instance.
     *
     * @return A new {@code transformationOutputProperty} element instance.
     *
     * @see #getTransformationOutputProperties()
     */
    public KeyValueType createTransformationOutputProperty()
    {
        final KeyValueType transformationOutputProperty = new KeyValueType();
        this.getTransformationOutputProperties().add( transformationOutputProperty );
        return transformationOutputProperty;
    }

                        modules.getModule().add( (Module) o );
                    }
                    else
                    {
                        this.log( Messages.getMessage( "unsupportedModuleResource", urls[i].toExternalForm() ),
                                  Project.MSG_WARN );

                    }

                    suppressExceptionOnClose = false;
                }
                catch ( final SocketTimeoutException e )
                {
                    String message = Messages.getMessage( e );
                    message = Messages.getMessage( "resourceTimeout", message != null ? " " + message : "" );

                    if ( resource.isOptional() )
                    {
                        this.getProject().log( message, e, Project.MSG_WARN );
                    }
                    else
                    {
                        throw new BuildException( message, e, this.getLocation() );
                    }
                }
                catch ( final IOException e )
                {
                    String message = Messages.getMessage( e );
                    message = Messages.getMessage( "resourceFailure", message != null ? " " + message : "" );

                    if ( resource.isOptional() )
                    {
                        this.getProject().log( message, e, Project.MSG_WARN );
                    }
                    else
                    {
                        throw new BuildException( message, e, this.getLocation() );
                    }
                }

abstract class Messages
{

    /** Constant for the name of the resource bundle backing the tasks. */
    private static final String RESOURCE_BUNDLE_NAME =
        Messages.class.getPackage().getName().replace( '.', '/' ) + "/Messages";

    /** Creates a new {@code Messages} instance. */
    Messages()
    {
        super();
    }

    /**
     * Gets a message for a given key from the resource bundle backing the tasks formatted using the given arguments.
     *
     * @param key The key of the string to get.
     * @param arguments The arguments to format the string with.
     *
     * @return The string matching {@code key} formatted using {@code arguments}.
     *
     * @throws NullPointerException if {@code key} is {@code null}.
     */
    static String getMessage( final String key, final Object... arguments )
    {
        if ( key == null )
        {
            throw new NullPointerException( "key" );
        }

        try
        {
            return MessageFormat.format( ResourceBundle.getBundle( RESOURCE_BUNDLE_NAME ).getString( key ), arguments );
        }
        catch ( final MissingResourceException e )
        {
            throw new AssertionError( e );
        }
        catch ( final ClassCastException e )
        {
            throw new AssertionError( e );
        }
        catch ( final IllegalArgumentException e )
        {
            throw new AssertionError( e );
        }
    }

    /**
     * Gets the message of a given {@code Throwable} recursively.
     *
     * @param t The {@code Throwable} to get the message of or {@code null}.
     *
     * @return The message of {@code t} or {@code null}.
     */
    static String getMessage( final Throwable t )
    {
        return t != null
               ? t.getMessage() != null && t.getMessage().trim().length() > 0
                 ? t.getMessage()
                 : getMessage( t.getCause() )
               : null;

    }

}

                                  Project.MSG_WARN );

                    }

                    suppressExceptionOnClose = false;
                }
                catch ( final SocketTimeoutException e )
                {
                    String message = Messages.getMessage( e );
                    message = Messages.getMessage( "resourceTimeout", message != null ? " " + message : "" );

                    if ( resource.isOptional() )
                    {
                        this.getProject().log( message, e, Project.MSG_WARN );
                    }
                    else
                    {
                        throw new BuildException( message, e, this.getLocation() );
                    }
                }
                catch ( final IOException e )
                {
                    String message = Messages.getMessage( e );
                    message = Messages.getMessage( "resourceFailure", message != null ? " " + message : "" );

                    if ( resource.isOptional() )
                    {
                        this.getProject().log( message, e, Project.MSG_WARN );
                    }
                    else
                    {
                        throw new BuildException( message, e, this.getLocation() );
                    }
                }

            this.log( Messages.getMessage( "validatingModelObjects", this.getModel() ) );

            classLoader = this.newProjectClassLoader();
            final ModelContext context = this.newModelContext( classLoader );
            final ClassFileProcessor tool = this.newClassFileProcessor();
            final JAXBContext jaxbContext = context.createContext( this.getModel() );
            final Model model = this.getModel( context );
            final Source source = new JAXBSource( jaxbContext, new ObjectFactory().createModel( model ) );
            ModelValidationReport validationReport = context.validateModel( this.getModel(), source );

            this.logValidationReport( context, validationReport );
            tool.setModel( model );

            if ( validationReport.isModelValid() )
            {
                final Specification s = this.getSpecification( model );
                final Implementation i = this.getImplementation( model );
                final Module m = this.getModule( model );

                if ( s != null )
                {
                    validationReport = tool.validateModelObjects( s, context, this.getClassesDirectory() );

                                                                       resource.getLocation() ) );

                    }
                }

                for ( int i = urls.length - 1; i >= 0; i-- )
                {
                    InputStream in = null;
                    suppressExceptionOnClose = true;

                    try
                    {
                        this.logMessage( Level.FINEST, Messages.getMessage( "reading", urls[i].toExternalForm() ) );

                        final URLConnection con = urls[i].openConnection();
                        con.setConnectTimeout( resource.getConnectTimeout() );
                        con.setReadTimeout( resource.getReadTimeout() );
                        con.connect();
                        in = con.getInputStream();

                        final Source source = new StreamSource( in, urls[i].toURI().toASCIIString() );
                        Object o = unmarshaller.unmarshal( source );
                        if ( o instanceof JAXBElement<?> )
                        {
                            o = ( (JAXBElement<?>) o ).getValue();
                        }

                        if ( o instanceof Modlet )

            if ( this.transformationParameters != null )
            {
                clone.transformationParameters =
                    new ArrayList<KeyValueType>( this.transformationParameters.size() );

                for ( KeyValueType e : this.transformationParameters )
                {
                    clone.transformationParameters.add( e.clone() );
                }
            }

            if ( this.transformationParameterResources != null )
            {
                clone.transformationParameterResources =
                    new ArrayList<PropertiesResourceType>( this.transformationParameterResources.size() );

                for ( PropertiesResourceType e : this.transformationParameterResources )
                {
                    clone.transformationParameterResources.add( e.clone() );
                }
            }

            if ( this.transformationOutputProperties != null )
            {
                clone.transformationOutputProperties =
                    new ArrayList<KeyValueType>( this.transformationOutputProperties.size() );

                for ( KeyValueType e : this.transformationOutputProperties )
                {
                    clone.transformationOutputProperties.add( e.clone() );
                }
            }

            return clone;
        }

            if ( resource.isOptional() )
            {
                this.getProject().log( Messages.getMessage( "resourceFailure", message != null ? " " + message : "" ),
                                       e, Project.MSG_WARN );

            }
            else
            {
                throw new BuildException( Messages.getMessage( "resourceFailure", message != null ? " " + message : "" ),
                                          e, this.getLocation() );

            }
        }
        finally
        {
            try
            {
                if ( in != null )
                {
                    in.close();
                }
            }
            catch ( final IOException e )
            {
                if ( suppressExceptionOnClose )
                {
                    this.logMessage( Level.SEVERE, Messages.getMessage( e ), e );
                }
                else
                {
                    throw new BuildException( Messages.getMessage( e ), e, this.getLocation() );
                }
            }
        }

        return null;