Program: 151662
Project: 151662
Buggy source:
@DefaultCommand public void install(@Option(required=true,description="String_Node_Str") final String pluginName){
  PluginMetadata meta=registry.getPlugins().get(pluginName);
  if (meta != null) {
    Plugin plugin=registry.instanceOf(meta);
    if (plugin instanceof InstallablePlugin) {
      InstallablePlugin installable=(InstallablePlugin)plugin;
      if (!installable.isInstalled(project)) {
        List<PackagingType> types=installable.getCompatiblePackagingTypes();
        PackagingType packaging=project.getFacet(PackagingFacet.class).getPackagingType();
        if (!types.contains(packaging)) {
          if (shell.promptBoolean("String_Node_Str" + meta.getName() + "String_Node_Str"+ types+ "String_Node_Str"+ packaging+ "String_Node_Str")) {
            PackagingType type=shell.promptChoiceTyped("String_Node_Str",types);
            project.getFacet(PackagingFacet.class).setPackagingType(type);
            shell.println("String_Node_Str" + type + "String_Node_Str");
          }
 else {
            abort();
            return;
          }
        }
        installable.install(project);
      }
      if (installable.isInstalled(project)) {
        shell.println("String_Node_Str");
      }
 else {
        shell.println("String_Node_Str");
      }
    }
 else {
      shell.println("String_Node_Str" + pluginName + "String_Node_Str");
    }
  }
 else {
    shell.println("String_Node_Str" + pluginName + "String_Node_Str");
  }
}

Fixed version (ground truth):
@DefaultCommand public void install(@Option(required=true,description="String_Node_Str") final String pluginName){
  PluginMetadata meta=registry.getPlugins().get(pluginName);
  if (meta != null) {
    Plugin plugin=registry.instanceOf(meta);
    if (plugin instanceof InstallablePlugin) {
      InstallablePlugin installable=(InstallablePlugin)plugin;
      if (!installable.isInstalled(project)) {
        List<PackagingType> types=installable.getCompatiblePackagingTypes();
        PackagingType packaging=project.getFacet(PackagingFacet.class).getPackagingType();
        if (!types.contains(packaging)) {
          if (types.size() == 1) {
            if (shell.promptBoolean("String_Node_Str" + meta.getName() + "String_Node_Str"+ types+ "String_Node_Str"+ packaging+ "String_Node_Str"+ types+ "String_Node_Str")) {
              project.getFacet(PackagingFacet.class).setPackagingType(types.get(0));
              shell.println("String_Node_Str" + types + "String_Node_Str");
            }
 else {
              abort();
              return;
            }
          }
 else           if (types.size() > 1) {
            if (shell.promptBoolean("String_Node_Str" + meta.getName() + "String_Node_Str"+ types+ "String_Node_Str"+ packaging+ "String_Node_Str")) {
              PackagingType type=shell.promptChoiceTyped("String_Node_Str",types);
              project.getFacet(PackagingFacet.class).setPackagingType(type);
              shell.println("String_Node_Str" + type + "String_Node_Str");
            }
 else {
              abort();
              return;
            }
          }
        }
        installable.install(project);
      }
      if (installable.isInstalled(project)) {
        shell.println("String_Node_Str");
      }
 else {
        shell.println("String_Node_Str");
      }
    }
 else {
      shell.println("String_Node_Str" + pluginName + "String_Node_Str");
    }
  }
 else {
    shell.println("String_Node_Str" + pluginName + "String_Node_Str");
  }
}