[TIMOB-4494] Ti.XML.XMLDomDocument causing device and simulator crashes in API 1.7 with accessing attributes

GitHub Issue	n/a
Type	Bug
Priority	Critical
Status	Closed
Resolution	Cannot Reproduce
Resolution Date	2011-08-01T12:14:32.000+0000
Affected Version/s	Release 1.7.1
Fix Version/s	Sprint 2011-31
Components	iOS
Labels	XMLDomDocument, xml
Reporter	Tim Alosi
Assignee	Blain Hamon
Created	2011-06-15T08:21:04.000+0000
Updated	2017-03-31T20:37:56.000+0000

Description

I have had some stable code since API 1.5. +Usecase has been developed and attached to the ticket, including an app.js that is from a simple project and an xml file+ +In the usecase, it seems to crash consistently around node 403. Deleting node 403, or nodes before doesn't "move" the crash, still crashes at 403 (implying not an xml file issue)+ Two code snippets are listed below that access an XML document with several hundred nodes. The code worked very consistently in previous API versions. With API 1.7 I am getting frequent crashes in simulator and the device always crashes when executing either of these two sections of code I have switched back to API 1.6.2 and confirmed that this does NOT Crash. The crash does NOT always happen at the same nodes, (I don't think this is an xml format issue) Code Snippet 1:

var docTags = Ti.XML.parseString(oContents.text);
Ti.API.debug('B:');
var eleTags = docTags.getElementsByTagName("tag");
Ti.API.debug('C:');

//Populate the Table View
for (var i = 0, iLen = eleTags.length; i < iLen; i++) {
	Ti.API.debug('D:'+i +' '+iLen);
	var row = Ti.UI.createTableViewRow({
		title: eleTags.item(i).getAttribute('tag'),
		className: 'tag'
	});
	Ti.API.debug('E:'+i);
	var countLabel = Ti.UI.createLabel({
		width: 35,
		height: '65%',
		right: 10,
		backgroundColor: '#778',
		borderColor: '#778',
		borderRadius: 15,
		color: 'white',
		text: eleTags.item(i).getAttribute('count'),
		font: {	fontWeight: 'bold',fontSize: 16	},
		textAlign: 'center'
	});

	row.add(countLabel);
	Ti.API.debug('F:'+i);
	row.addEventListener('click', winTagMenu.rowClickEvent);
	tagData.push(row);
}

Simulator Console Output Crash

[DEBUG] E:99

[DEBUG] F:99

[DEBUG] D:100 293

[DEBUG] E:100

[DEBUG] App Spec: <DTiPhoneSimulatorApplicationSpecifier 0x200350> specified by path /Users/home/Documents/Appcelerator/miMarks/build/iphone/build/Debug-iphonesimulator/miMarks.app
[DEBUG] SDK Root: <DTiPhoneSimulatorSystemRoot 0x110220> path=/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk version=4.3 name=Simulator - iOS 4.3
[DEBUG] using device family ipad
[DEBUG] Session started
[DEBUG] Session did end with error Error Domain=DTiPhoneSimulatorErrorDomain Code=1 UserInfo=0x113610 "The simulated application quit."
[INFO] Application has exited from Simulator

Code Snippet 2

if (filePosts.exists()) {
	var oContents = filePosts.read();
	var docPosts = Ti.XML.parseString(oContents.text);
	var elePosts = docPosts.getElementsByTagName("post");
			
	//For Loop to check Tag and push to post array.
	//Populate the data Array
	Util.log({
		type: 'debug',
		msg: 'Service.getPostData: Before For'
	});
	for (var i = 0, iLen = elePosts.length; i < iLen; i++) {
		//Populate Object
		Ti.API.debug('1:'+i+ " "+iLen);
		var sDescription = elePosts.item(i).getAttribute('description');
		Ti.API.debug('2:'+i+" "+sDescription);
		var sHref = elePosts.item(i).getAttribute('href');
		Ti.API.debug('3:'+i);
		var oPost = {
			href: sHref,
			title: sDescription,
			hash: elePosts.item(i).getAttribute('hash'),
			description: sDescription,
			tag: elePosts.item(i).getAttribute('tag'),
			image: parseUri(sHref).host + '.jpg'
		};
				
		oReturn.data.push(oPost);
	};
}

Simulator Console Crash 2

[DEBUG] 1:482 527

[DEBUG] 2:482 Openomy - The Online File System - Organizing your web based world

[DEBUG] 3:482

[DEBUG] App Spec: <DTiPhoneSimulatorApplicationSpecifier 0x10f8c0> specified by path /Users/home/Documents/Appcelerator/miMarks/build/iphone/build/Debug-iphonesimulator/miMarks.app
[DEBUG] SDK Root: <DTiPhoneSimulatorSystemRoot 0x110280> path=/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk version=4.3 name=Simulator - iOS 4.3
[DEBUG] using device family ipad
[DEBUG] Session started
[DEBUG] Session did end with error Error Domain=DTiPhoneSimulatorErrorDomain Code=1 UserInfo=0x104d80 "The simulated application quit."
[INFO] Application has exited from Simulator

Attachments

File	Date	Size
app.js	2011-06-24T14:47:09.000+0000	1198
posts.xml	2011-06-24T14:47:30.000+0000	150627

Comments

Paul Dowsett 2011-06-20

In order for us to progress this issue, please would you edit your ticket and replace your code with a [Use-case](http://wiki.appcelerator.org/display/guides/Contributing+to+Titanium#ContributingtoTitanium-CreatingGoodUsecases). To summarize, this is the simplest code that will demonstrate the issue, and will run without any modification. Also, please include some test data, so that we may reproduce it. Lastly, please use the wiki markup provided, to reformat your code block (surround it with the \{code\} macro) Thanks
Tim Alosi 2011-06-24

Been out of town ... I will work up a use case with sample data
Tim Alosi 2011-06-24

Developed and attached a use case. Looking forward to your assessment
Stephen Tramer 2011-07-05

This issue is caused by our lack of attribute support.
Blain Hamon 2011-08-01

Could not get app.js to crash. The code snippets refused to run, even after massaging (eleTags would be null) the code. It's likely that between the new TiJSCore and TIMOB-4610, this has already been fixed.
Tim Alosi 2011-08-01

Blain, two questions. 1. Did you try to reproduce on the current code base (with changes from TIMOB-4610)? 2. When you said "code snippets refused to run" ... did you mean not crash or not run ... just want to make sure. Thanks Tim
Lee Morris 2017-03-31

Closing ticket as this was last updated in 2011, please open a new ticket if this problem persists.

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