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From Emilian Bold <emilian.b...@protonmail.ch>
Subject Re: Bug in Netbeans for MacOS
Date Tue, 01 May 2018 14:17:00 GMT
Thanks for investigating this.

Please move the discussion over to dev@ as it seems a problem with NetBeans Platform itself
and more NetBeans developers will be on dev@ than users@.

It's unclear to me why the application crashes. Clearly we would have learned about it so
far, NetBeans does have some users on macOS and I've been using NetBeans on Mac exclusively
for ages.

So... there must be something about how your code behaves too.

Could you report the issue on JIRA (on https://issues.apache.org/jira/projects/NETBEANS/issues
) and also make a small module/class reproducing the bug and attach it to the issue?

PS: Not sure what you mean about recompiling the package. If the fix will get added it will
be part of the next Apache release. If you need commercial help, it is available from a few
people https://netbeans.apache.org/help/commercial-support.html , including me.

--emi

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On 1 May 2018 2:24 PM, frederic <frederic@ancestris.org> wrote:

> Dear all,
> 
> I have found a bug in Netbeans on MacOS which makes the applications crash on MacOS.
I would like to know if it is possible to fix it in Netbeans 8.0.1 or at least to make sure
it is not in Netbeans 8.2.
> 
> The bug :
> 
> ======
> 
> I'm using Netbeans 8.0.1 for Ancestris. There seems to be a conflicting thread in MainWindow.java
that compromises the removal of lookup listeners.
> 
> Therefore, if an updateLookup runs in the application, the following thread is activated
which itself runs an updateLookup.
> 
> The application ends up multiplying the number of listeners up to several tens of thousands
and crashes on Mac.
> 
> Here is the code with the bug: (in MainWindow.java in package org.netbeans.core.windows.view.ui)
> 
>        if (Utilities.getOperatingSystem() == Utilities.OS_MAC) {
> 
>            //Show a "save dot" in the close button if a modified file is
> 
>            //being edited
> 
>            //Show the icon of the edited file in the window titlebar like
> 
>            //other mac apps
> 
>            saveResult = Utilities.actionsGlobalContext().lookupResult (SaveCookie.class);
> 
>            dobResult = Utilities.actionsGlobalContext().lookupResult (DataObject.class);
> 
>            if( null != saveResult && null != dobResult ) {
> 
>                saveListener = new LookupListener() {
> 
>                    @Override
> 
>                    public void resultChanged(final LookupEvent ev)
{
> 
>                        RP.post( new Runnable() {
> 
>                            @Override
> 
>                            public void run() {
> 
>                                updateMacDocumentProperties(ev);
> 
>                            }
> 
>                        });
> 
>                    }
> 
>                };
> 
>                saveResult.addLookupListener(saveListener);
> 
>                dobResult.addLookupListener(saveListener);
> 
>            }
> 
>            dobResult.allItems();
> 
>        }
> 
> The " updateMacDocumentProperties(ev)" includes :
> 
> - saveResult.allItems()
> 
> - dobResult.allItems()
> 
> which trigger an updateLookup as well, creating two threads updating the same lookups
(removeListener, addListener).
> 
> The fix:
> 
> =====
> 
> I would be ok to just replace :
> 
> "Utilities.getOperatingSystem() == Utilities.OS_MAC"
> 
> with
> 
> "Utilities.getOperatingSystem() == Utilities.OS_MAC & false"
> 
> because I do not think we need this on Mac in the Ancestris application at least.
> 
> Can someone recompile the package with this fix and send it back to me ? Or else can
someone help me fix it myself localy (I do not have the code to recompile this package) ?
> 
> Many thanks in advance if it can be done.
> 
> Best regards,
> 
> Frederic

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