Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>First, I doubt this has anything to do with your problem, but I would be wary of using <code>nullptr</code> and <code>TRUE</code> as arguments to <code>performOnMainThread:...</code> Instead I would do:</p> <p><code>[JNFRunLoop performOnMainThread:@selector(showOpenFileDialog) on:openFile withObject:nil waitUntilDone:YES];</code></p> <p>Just to be on the safe side.</p> <p>From the stack trace, assuming that is all one big stack and you just separated it to add commentary about your helper object method call, it seems like the code path being taken is the one where <code>[NSThread isMainThread]</code> returns NO. This must mean it's on a background thread (<code>__NSThreadPerformPerform</code> is then doing the bidding of <code>JNFRunLoop</code>).</p> <p>The stack never gets out of the initialization path for the <code>NSOpenPanel</code>, and somehow, way deep down at the bottom, it is again accessing run loop things. In my mind, it seems like there is some kind of deadlock happening.</p> <p>If <code>JNFRunLoop</code> is waiting in another thread on the execution of the <code>showOpenFileDialog</code> method to complete on the main run loop, and something in <code>openPanel</code> is trying to wait on things in that same run loop, that might cause a deadlock.</p> <p>I am unfamiliar with the integration between Java and Cocoa, but might there be some way to avoid executing the first snippet of code on a non-main thread?</p> <p>Alternatively, can you try using:</p> <p><code>[openFile performSelectorOnMainThread:@selector(showOpenFileDialog) withObject:nil waitUntilDone:YES];</code></p> <p>in the non main thread path?</p>
    singulars
    1. This table or related slice is empty.
    1. PONSOpenPanel hangs java app
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USlyricsboy
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PONSOpenPanel hangs java app
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COProbably unrelated, but I did find this talk of a crash in a similar stack, due to buffer overrun: http://www.cocoabuilder.com/archive/cocoa/130423-nssavepanel-crashing-on-instantiation.html
      singulars
      1. PO
      1. USlyricsboy
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload