private void setDefaultInputStream(GantBinding binding) {

    // Gant does not initialise the default input stream for
    // the Ant project, so we manually do it here.
    AntBuilder antBuilder = (AntBuilder) binding.getVariable("ant");
    Project p = antBuilder.getAntProject();

    try {
      System.setIn(originalIn);
      p.setInputHandler(new CommandLineInputHandler());
      p.setDefaultInputStream(originalIn);
    } catch (NoSuchMethodError nsme) {
      // will only happen due to a bug in JRockit
      // note - the only approach that works is to loop through the public methods
      for (Method m : p.getClass().getMethods()) {
        if ("setDefaultInputStream".equals(m.getName())
            && m.getParameterTypes().length == 1
            && InputStream.class.equals(m.getParameterTypes()[0])) {
          try {
            m.invoke(p, originalIn);
            break;
          } catch (Exception e) {
            // shouldn't happen, but let it bubble up to the catch(Throwable)
            throw new RuntimeException(e);
          }
        }
      }
    }
  }
  public Runnable createTargetInstance(Target target, Properties localProperties, Logger logger) {
    //        System.out.println("DefaultProjectModel.createTargetInstance");
    AntClassLoader loader = null;
    DefaultResources resources;

    try {
      org.apache.tools.ant.types.Path classPath = toAntPath(resolvePathGroup(target, "classpath"));

      // Allow additional classes to added to the plugin classpath. This is primarily designed to
      // allow the additional of instrumented testing classes and libraries for code coverage of
      // integration
      // tests with Cobertura
      String key = "quokka.classpath." + target.getPlugin().getArtifact().getId().getGroup();

      if (log.isDebugEnabled()) {
        log.debug("Searching for additional classpath with key: " + key);
      }

      String additionalPath = System.getProperty(key);

      if ((additionalPath != null) && !additionalPath.trim().equals("")) {
        org.apache.tools.ant.types.Path existing = classPath;
        classPath = new org.apache.tools.ant.types.Path(antProject, additionalPath);
        log.verbose("Prefixing classpath with: " + classPath);
        classPath.append(existing); // Make sure additions override existing
      }

      if ("true".equals(antProject.getProperty("quokka.project.debugclassloaders"))) {
        loader =
            new QuokkaLoader(target, antProject.getClass().getClassLoader(), antProject, classPath);
      } else {
        loader = antProject.createClassLoader(classPath);
      }

      loader.setParent(antProject.getCoreLoader());
      loader.setParentFirst(true);
      loader.setIsolated(false);
      loader.setThreadContextLoader();

      // Initialise this plugin
      Plugin plugin = target.getPlugin();
      loader.forceLoadClass(plugin.getClassName());

      Class pluginClass = Class.forName(plugin.getClassName(), true, loader);
      ws.quokka.core.plugin_spi.Plugin actualPlugin =
          (ws.quokka.core.plugin_spi.Plugin) pluginClass.newInstance();

      if (actualPlugin instanceof MetadataAware) {
        ((MetadataAware) actualPlugin).setMetadata(getMetadata());
      }

      if (actualPlugin instanceof ResourcesAware) {
        resources = new DefaultResources(this, target, antProject, logger);
        ((ResourcesAware) actualPlugin).setResources(resources);
      }

      if (actualPlugin instanceof RepositoryAware) {
        ((RepositoryAware) actualPlugin).setRepository(getRepository());
      }

      if (actualPlugin instanceof RepositoryFactoryAware) {
        ((RepositoryFactoryAware) actualPlugin)
            .setRepositoryFactory(
                (RepositoryFactory) antProject.getReference(ProjectHelper.REPOSITORY_FACTORY));
      }

      if (actualPlugin instanceof ResolverAware) {
        ((ResolverAware) actualPlugin).setResolver(pathResolver);
      }

      if (actualPlugin instanceof ModelFactoryAware) {
        ((ModelFactoryAware) actualPlugin).setModelFactory(getModelFactory());
      }

      actualPlugin.initialise();

      return actualPlugin.getTarget(
          (target.getTemplateName() != null) ? target.getTemplateName() : target.getName());
    } catch (Exception e) {
      throw new BuildException(e);
    } finally {
      if (loader != null) {
        loader.resetThreadContextLoader();
        loader.cleanup();
      }
    }
  }