[TIMOB-1945] Android: tableview .setData while view being assembled can cause IndexOutOfBoundsException

Using this failcase app.js, tap very quickly from one tab to another. If you do it fast enough, you will cause a crash:

Titanium.UI.setBackgroundColor('#000');

var table;

function updateTable() {
    Ti.API.info('updateTable');
    var rowcount = ((Math.floor(Math.random() * 10)) % 2 === 0) ? 5 : 500;
    var rows = [];
    table.data = [];
    for (var i = 0; i < rowcount; i++) {
        var tr = Ti.UI.createTableViewRow();
        tr.leftImage = 'KS_nav_ui.png';
        tr.title = "Row " + i;
        rows.push(tr);
    }
    table.data = rows;
}

var tabGroup = Titanium.UI.createTabGroup();
tabGroup.addEventListener('focus', function(e)
{
    updateTable();
});


var win1 = Titanium.UI.createWindow({  
    title:'Tab 1',
    backgroundColor:'#fff'
});
var tab1 = Titanium.UI.createTab({  
    icon:'KS_nav_views.png',
    title:'Tab 1',
    window:win1
});

table = Ti.UI.createTableView();
win1.add(table);

var win2 = Titanium.UI.createWindow({  
    title:'Tab 2',
    backgroundColor:'#fff'
});
var tab2 = Titanium.UI.createTab({  
    icon:'KS_nav_ui.png',
    title:'Tab 2',
    window:win2
});

tabGroup.addTab(tab1);  
tabGroup.addTab(tab2);  
tabGroup.open();

The problem appears to be that .setData is not thread safe. It can be called in quick succession from different threads. While one of the threads is in the part of the method that calls updateView(), the other thread can "pull the data out from underneath it", so to speak, by calling .setData again.