Synchronization through x++ code / Unable to do DB Sync through AOT

Synchronization forcefully DB through X++ 

here is the code for synchronization DB in X++.

static void DBSync(Args _args )

{

    Dictionary dict;

    int idx,lastIdx,totalTables;

    TableId tableId;

    Application application;

    SysOperationProgress progress;

    StackBase            errorStack;

    ErrorTxt             errorTxt;

    application =  new Application();

    dict = new Dictionary();

    totalTables = dict.tableCnt();

    progress = new SysOperationProgress();

    progress.setTotal(TotalTables);

    progress.setCaption("TEst");

    errorStack = new StackBase(Types::String);

    lastIdx = 0;

    try

    {

        for (idx = lastIdx + 1; idx <= totalTables ; idx++)

        {

            tableId = dict.tableCnt2Id(idx);

            progress.setText(dict.tableName(tableId));

            lastIdx = idx;

            application.dbSynchronize(tableId,false,true,false);

            progress.incCount();

        }

    }

    catch(Exception::Error)

    {

        errorTxt =  strFmt("Error in table '%1 (%2)'",tableId,dict.tableName(tableId));

        errorStack.push(errorTxt);

        retry;

    }

    setPrefix('Test2');

    errorTxt = errorStack.pop();

    while (errorTxt)

    {

        error(errorTxt);

        errorTxt = errorStack.pop();

    }

}

now run job.