How to use

FatJarPackageWizardPage$ExistingLaunchConfigurationElement

in

org.eclipse.jdt.internal.ui.jarpackagerfat

private LaunchConfigurationElement[] getLaunchConfigurations() {
  ArrayList<ExistingLaunchConfigurationElement> result= new ArrayList<>();
  try {
    ILaunchManager manager= DebugPlugin.getDefault().getLaunchManager();
    ILaunchConfigurationType type= manager.getLaunchConfigurationType(IJavaLaunchConfigurationConstants.ID_JAVA_APPLICATION);
    ILaunchConfiguration[] launchconfigs= manager.getLaunchConfigurations(type);
    for (int i= 0; i < launchconfigs.length; i++) {
      ILaunchConfiguration launchconfig= launchconfigs[i];
      if (!launchconfig.getAttribute(IDebugUIConstants.ATTR_PRIVATE, false)) {
        String projectName= launchconfig.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, ""); //$NON-NLS-1$
        result.add(new ExistingLaunchConfigurationElement(launchconfig, projectName));
      }
    }
  } catch (CoreException e) {
    JavaPlugin.log(e);
  }
  return result.toArray(new LaunchConfigurationElement[result.size()]);
}

private LaunchConfigurationElement[] getLaunchConfigurations() {
  ArrayList<ExistingLaunchConfigurationElement> result= new ArrayList<>();
  try {
    ILaunchManager manager= DebugPlugin.getDefault().getLaunchManager();
    ILaunchConfigurationType type= manager.getLaunchConfigurationType(IJavaLaunchConfigurationConstants.ID_JAVA_APPLICATION);
    ILaunchConfiguration[] launchconfigs= manager.getLaunchConfigurations(type);
    for (int i= 0; i < launchconfigs.length; i++) {
      ILaunchConfiguration launchconfig= launchconfigs[i];
      if (!launchconfig.getAttribute(IDebugUIConstants.ATTR_PRIVATE, false)) {
        String projectName= launchconfig.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, ""); //$NON-NLS-1$
        result.add(new ExistingLaunchConfigurationElement(launchconfig, projectName));
      }
    }
  } catch (CoreException e) {
    JavaPlugin.log(e);
  }
  return result.toArray(new LaunchConfigurationElement[result.size()]);
}