Program: 124878
Project: 124878
Buggy source:
/** 
 * @see org.eclipse.jface.wizard.Wizard#performFinish()
 */
@Override public boolean performFinish(){
  IProxyRepositoryFactory repositoryFactory=ProxyRepositoryFactory.getInstance();
  try {
    ILibrariesService service=CorePlugin.getDefault().getLibrariesService();
    URL templateUrl=service.getPigudfTemplate(mainPage.getSelectedTemplate());
    ByteArray byteArray=PropertiesFactory.eINSTANCE.createByteArray();
    InputStream stream=null;
    try {
      stream=templateUrl.openStream();
      byte[] innerContent=new byte[stream.available()];
      stream.read(innerContent);
      stream.close();
      byteArray.setInnerContent(innerContent);
    }
 catch (    IOException e) {
      RuntimeExceptionHandler.process(e);
    }
    pigUDFItem.setContent(byteArray);
    updateItemContent();
    property.setId(repositoryFactory.getNextId());
    property.setLabel(property.getDisplayName());
    IMPORTType type=ComponentFactory.eINSTANCE.createIMPORTType();
    String jarName="String_Node_Str";
    String relativePath="String_Node_Str" + jarName;
    URI uri=new URI(relativePath);
    boolean libExist=false;
    ILibraryManagerService librairesService=(ILibraryManagerService)GlobalServiceRegister.getDefault().getService(ILibraryManagerService.class);
    try {
      URL url=FileLocator.toFileURL(uri.toURL());
      File file=new File(url.getFile());
      if (file.exists()) {
        libExist=true;
        CorePlugin.getDefault().getLibrariesService().deployLibrary(file.toURL());
      }
    }
 catch (    Exception e) {
      if (GlobalServiceRegister.getDefault().isServiceRegistered(ILibraryManagerUIService.class)) {
        ILibraryManagerUIService libUiService=(ILibraryManagerUIService)GlobalServiceRegister.getDefault().getService(ILibraryManagerUIService.class);
        libUiService.installModules(new String[]{jarName});
      }
      if (librairesService.list(new NullProgressMonitor()).contains(repositoryFactory)) {
        libExist=true;
      }
    }
    if (libExist) {
      type.setMODULE(jarName);
      type.setREQUIRED(true);
      type.setUrlPath(librairesService.getJarPath(jarName));
      pigUDFItem.getImports().add(type);
    }
    repositoryFactory.create(pigUDFItem,mainPage.getDestinationPath());
    if (libExist) {
      CorePlugin.getDefault().getRunProcessService().updateLibraries(new HashSet<String>(),null);
    }
  }
 catch (  PersistenceException e) {
    ExceptionHandler.process(e);
  }
catch (  URISyntaxException e) {
    ExceptionHandler.process(e);
  }
  return pigUDFItem != null;
}

Fixed version (ground truth):
/** 
 * @see org.eclipse.jface.wizard.Wizard#performFinish()
 */
@Override public boolean performFinish(){
  IProxyRepositoryFactory repositoryFactory=ProxyRepositoryFactory.getInstance();
  try {
    ILibrariesService service=CorePlugin.getDefault().getLibrariesService();
    URL templateUrl=service.getPigudfTemplate(mainPage.getSelectedTemplate());
    ByteArray byteArray=PropertiesFactory.eINSTANCE.createByteArray();
    InputStream stream=null;
    try {
      stream=templateUrl.openStream();
      byte[] innerContent=new byte[stream.available()];
      stream.read(innerContent);
      stream.close();
      byteArray.setInnerContent(innerContent);
    }
 catch (    IOException e) {
      RuntimeExceptionHandler.process(e);
    }
    pigUDFItem.setContent(byteArray);
    updateItemContent();
    property.setId(repositoryFactory.getNextId());
    property.setLabel(property.getDisplayName());
    IMPORTType type=ComponentFactory.eINSTANCE.createIMPORTType();
    String jarName="String_Node_Str";
    String relativePath="String_Node_Str" + jarName;
    URI uri=new URI(relativePath);
    boolean libExist=false;
    ILibraryManagerService librairesService=(ILibraryManagerService)GlobalServiceRegister.getDefault().getService(ILibraryManagerService.class);
    try {
      URL url=FileLocator.toFileURL(uri.toURL());
      File file=new File(url.getFile());
      if (file.exists()) {
        libExist=true;
        CorePlugin.getDefault().getLibrariesService().deployLibrary(file.toURL());
      }
    }
 catch (    Exception e) {
      if (GlobalServiceRegister.getDefault().isServiceRegistered(ILibraryManagerUIService.class)) {
        ILibraryManagerUIService libUiService=(ILibraryManagerUIService)GlobalServiceRegister.getDefault().getService(ILibraryManagerUIService.class);
        libUiService.installModules(new String[]{jarName});
      }
      if (librairesService.list(new NullProgressMonitor()).contains(repositoryFactory)) {
        libExist=true;
      }
    }
    if (libExist) {
      type.setMODULE(jarName);
      type.setREQUIRED(true);
      type.setUrlPath(librairesService.getJarPath(jarName));
      pigUDFItem.getImports().add(type);
    }
    repositoryFactory.create(pigUDFItem,mainPage.getDestinationPath());
    if (libExist) {
      CorePlugin.getDefault().getRunProcessService().updateLibraries(new HashSet<ModuleNeeded>(),null);
    }
  }
 catch (  PersistenceException e) {
    ExceptionHandler.process(e);
  }
catch (  URISyntaxException e) {
    ExceptionHandler.process(e);
  }
  return pigUDFItem != null;
}