Program: 126377
Project: 126377
Buggy source:
public void updateUIInThreadIfThread(){
  if (tableItem.isDisposed()) {
    return;
  }
  if (checkConnectionIsDone) {
    tableItem.setText(2,"String_Node_Str" + listColumns.size());
    tableItem.setText(3,Messages.getString("String_Node_Str"));
    countSuccess++;
    ((SalesforceSchemaConnection)connectionItem.getConnection()).setModuleName(tableItem.getText(0));
    temConnection.setModuleName(tableItem.getText(0));
    SalesforceModuleUnit module=ConnectionFactory.eINSTANCE.createSalesforceModuleUnit();
    module.setId(ProxyRepositoryFactory.getInstance().getNextId());
    module.setModuleName(tableItem.getText(0));
    module.setLabel(tableItem.getText(0));
    MetadataTable table=ConnectionFactory.eINSTANCE.createMetadataTable();
    String nextId=ProxyRepositoryFactory.getInstance().getNextId();
    table.setId(nextId);
    table.setLabel(tableItem.getText(0));
    if (listColumns.size() > 0) {
      for (int i=0; i < listColumns.size(); i++) {
        MetadataColumn metadataColumn=ConnectionFactory.eINSTANCE.createMetadataColumn();
        metadataColumn.setNullable(listColumns.get(i).isNullable());
        metadataColumn.setLength(listColumns.get(i).getLength());
        metadataColumn.setPattern(listColumns.get(i).getPattern());
        metadataColumn.setTalendType(listColumns.get(i).getTalendType());
        metadataColumn.setPrecision(listColumns.get(i).getPrecision());
        metadataColumn.setLabel(listColumns.get(i).getLabel());
        table.getColumns().add(i,metadataColumn);
      }
    }
    module.getTables().add(table);
    temConnection.getModules().add(module);
    tableColumnNums.put(tableItem.getText(0),listColumns.size());
  }
 else {
    updateStatus(IStatus.WARNING,Messages.getString("String_Node_Str"));
    new ErrorDialogWidthDetailArea(getShell(),PID,Messages.getString("String_Node_Str"),managerConnection.getMessageException());
  }
  count++;
  updateStatus(IStatus.OK,null);
  parentWizardPage.setPageComplete(threadExecutor.getQueue().isEmpty() && (threadExecutor.getActiveCount() == 0 || countSuccess == countPending));
}

Fixed version (ground truth):
public void updateUIInThreadIfThread(){
  if (tableItem.isDisposed()) {
    return;
  }
  if (checkConnectionIsDone) {
    tableItem.setText(2,"String_Node_Str" + listColumns.size());
    tableItem.setText(3,Messages.getString("String_Node_Str"));
synchronized (countSuccess) {
      countSuccess++;
    }
    ((SalesforceSchemaConnection)connectionItem.getConnection()).setModuleName(tableItem.getText(0));
    temConnection.setModuleName(tableItem.getText(0));
    SalesforceModuleUnit module=ConnectionFactory.eINSTANCE.createSalesforceModuleUnit();
    module.setId(ProxyRepositoryFactory.getInstance().getNextId());
    module.setModuleName(tableItem.getText(0));
    module.setLabel(tableItem.getText(0));
    MetadataTable table=ConnectionFactory.eINSTANCE.createMetadataTable();
    String nextId=ProxyRepositoryFactory.getInstance().getNextId();
    table.setId(nextId);
    table.setLabel(tableItem.getText(0));
    if (listColumns.size() > 0) {
      for (int i=0; i < listColumns.size(); i++) {
        MetadataColumn metadataColumn=ConnectionFactory.eINSTANCE.createMetadataColumn();
        metadataColumn.setNullable(listColumns.get(i).isNullable());
        metadataColumn.setLength(listColumns.get(i).getLength());
        metadataColumn.setPattern(listColumns.get(i).getPattern());
        metadataColumn.setTalendType(listColumns.get(i).getTalendType());
        metadataColumn.setPrecision(listColumns.get(i).getPrecision());
        metadataColumn.setLabel(listColumns.get(i).getLabel());
        table.getColumns().add(i,metadataColumn);
      }
    }
    module.getTables().add(table);
    temConnection.getModules().add(module);
    tableColumnNums.put(tableItem.getText(0),listColumns.size());
  }
 else {
    updateStatus(IStatus.WARNING,Messages.getString("String_Node_Str"));
    new ErrorDialogWidthDetailArea(getShell(),PID,Messages.getString("String_Node_Str"),managerConnection.getMessageException());
  }
  count++;
  updateStatus(IStatus.OK,null);
  parentWizardPage.setPageComplete(threadExecutor.getQueue().isEmpty() && (threadExecutor.getActiveCount() == 0 || countSuccess == countPending));
}