I'm new to an approximately 50K-line Java project using JavaFX, and I'm getting a bug nobody else in the group seems to be able to duplicate. Unfortunately I can't share any code, so this is just a hope that this is a familiar issue to anyone else, or that there are suggestions about how to think about and solve this problem.
The application itself is a launcher with five different modes. The minimum working system requires running two different instances of the application and starting mode #1 in the first and mode #2 in the second. The two communicate with each other over IP.
Mode #1 works fine, stays open indefinitely; at any rate, I haven't been able to make it close unexpectedly. Mode #2 is the problem. After opening Mode #2, if I click on any other window, taking focus off of it, the window disappears within a second or two. I get no error message or any other symptom. The eclipse console just reads at the top. If I don't click elsewhere, it runs several minutes at least without comment.
I have no idea how to go about solving this problem. I can't seem to use a debugger because it doesn't seem to hold onto memory after crashing. There's nothing about crashing when the focus is taken off that matches up with any of my knowledge.
It's a simple window, two buttons, a menu, and an output text box.
With these clues, do you have any suggestions about how to proceed?
Related
I've just opened Jupyter Notebook like I always do, and it began doing some strange stuff, it's impossible to use. I've put up a 40-second video showing what's going on: https://youtu.be/8yDMT82Cju8
Basically upon creating a new notebook, the first cell appears really big (like if someone just pressed enter many times), and then it begins jumping further down. Any action, like typing, clicking, just adds more "lines" to the cell. Some weird xxxxxxxxxx characters show up and disappear randomly. All in all, it's unusable. No, there's no key stuck anywhere in case you thought about that. I've restarted the PC many times as well, to no success.
Funny thing is that this was working just yesterday and no software/hardware was modified in between.
I´ve just finished re-installing Anaconda and the problem has gone.
I'm gonna leave this here in case someone comes across the same issue.
When I try to delete or edit a node in my realtime database, I always get the info that I have to select a key with lesser elements to change something, else it is in read-only modus.
But when I click a low level node, nothing happens. So I actually can change nothing in my DB from console :(
A week ago I didn't see this warning and everything works great!
Any idea how I can get back to working version?
I also think the german translation is not very good, because it tells me that I should activate another mode. In English it says, that the mode got activated.
You're mixing three things here:
Your database console switched to read-only mode, which happens when you have a certain amount of data under it.
The warning is badly translated. Please file a bug report for that.
The database console doesn't handle clicks correctly anymore. I already reported that internally last week, and added your report to it. This bug has been fixed internally and will go into production by May 23.
Update 5/24/17:
Problem resolved. Works now.
It seems the ability to click on a child node and promote it to be the top element of the tree is broken. Doesn't work for me either, even on a small database that is not in Read-only & non-realtime mode. I'm almost sure it was working a day or two ago.
I'm seeing the failure when using Chrome. Just tried Internet Explorer. Its works there.
this is driving me crazy. Everytime I click on the terminal, I get text output but the click does not happen. I can't select anything, scroll on the terminal or perform any mouse operations.
For example, if I click I get things like "TB#TB", which is "TB" when I click and "#TB" when I release the click. If I scroll I get 'UC'` for every scroll of the wheel. Total rubbish.
I'm using cygwin to connect to a redhat machine and it happens only for this one machine. If I connect to a different one, also running redhat, it doesn't happen, so I think the issue is on the remote machine's side. It's also independent of what shell I'm using.
Any ideas?
EDIT: I discovered that pressing shift returns all the usual mouse functionality. I wonder why.
This is more like a "come down to your machine and solve problem"
You must have save default setting for that particular machine to direct it to shift option. As you said shift solves the problem.
You should reset the settings.
go here.
Putty configuration>windows>selection>click on shift overrides application's use of mouse
hope this helps
We have an application running flex sdk 4.5 and have recently encountered an issue with textInput fields which we have not been able to reproduce on our end for the better part of a month now.
Here are the symptoms:
Users opens an input form which contains several input fields (combo boxes, calendars, text inputs, etc)
User clicks inside a text field
Users types (obviously!)
** Nothing appears in the text input - we have validators on some of these fields and they do kick in properly (ie. user sees red box around textInput disappearing)
User moves cursor outside of text input field and text appears
Give or take, this is the test case we've been provided. We have been unable to reproduce this and I'm reaching out to see if anybody has heard of issues like this in the past.
They are running our flex application in the following environment:
Windows XP SP3
IE 7.0.5730.13 (locale = en-gb)
Flash Player 10.3.181.14
Upgrading either of these components is not an option. Installing the flash player debugger is not an option either.
Now we've setup a pc exactly the same way as they have on their end and still haven't reproduced. So we're really stuck at this point :)
Any suggestion is greatly appreciated. I'll provide any additional info needed.
-Marc
Feb. 2nd 2012 - Update
As I noted in my comment reply to shaun, it seems our customer was more or less precise in their description of the issue. We ran a webex session with them this morning and actually saw the issues first hand.
Here's what happens:
- User loads our application via its url
- User is able to input data and pretty much do any function for a 'random' time period
- All of a sudden, the issues start (there are more symptoms than just the one I originally mentioned):
1. Users type in text input fields and they won't see the text appear until they move the cursor out of / into any other component (could be entering an hbox, exiting a text input field, etc)
2. Combo boxes behave more or less the same. They can drop them down, but then the mouse wheel no longer refreshes the list. It actually scrolls in the background, but until the user moves the mouse, the list does not refresh
3. We also communicate between the server and client via an amf channel. The events make it to the client, but again, they won't see the screen refresh until they move their cursor.
So basically, the application still seems to work, but the screen is no longer refreshing. Could it be something to do with an invalidate / update of the display list that doesn't kick in? We'd like to get them to install the debugger version of FP, but that doesn't seem to be an option.
Another thing to keep in mind: they have a VERY bad internet connection. They average around 1-1.5mbps (megabits) which is enough for our app, but I just thought I'd let you know.
We learned that they also use a Citrix presentation layer to deploy IE 7 to the end users. We've received confirmation from the end user that even if they launch IE on their workstation (not through citrix), they get the issue also.
Another note is that we've seen no errors in our web server, jboss or application logs...
So that's the update I've got... anyone have more thoughts on this? We've more or less discarded the fonts being an issue at this point since the issue affects more than just 'fonts'. Is everything on the screen not updating anymore.
I wanted to create an app in appinventor that would switch screen right/left depending on what side the phone is shaken while unlocked. But couldnt figure out:
a. how to make application run in background.
b. what property i am going for. Like what tells phone's screen to scroll left or right when finger slides across the screen. What method is called. I figured view class would have to do something with it. Having no java experience i couldn't make much sense out of sdk,refernce,resources etc.
Please help me out, i will give you credit for it.
Oh also i think i might have to include "activity starter" too.
It's an issue for app inventor
http://code.google.com/p/app-inventor-for-android/issues/detail?id=32
star it to show you are interested
The standard Application Inventor 2 website, as you surely know, is this one:
http://ai2.appinventor.mit.edu/
However, there is another one, which allows using background threads (services):
http://services.appinventor.mit.edu/
It has a feature not available on the standard (official) AI2 website, the Add Task functionality, which allows adding tasks that will keep running even after a screen have been closed.
However, since it is an unsupported version, whose last release is dated from almost 1 year ago, I did not spent time making experiments, but this migh meet what you need:
The website will turn down, but worked like a charm before.
The whole concept was based on a Master Thesis: https://dspace.mit.edu/bitstream/handle/1721.1/100626/932752939-MIT.pdf;sequence=1
The last message from the site was something like: Google change the concept of background service architecture which cause the 'taks' concept to obsolate and prevent to work in the future.