AsyncTask Issue on PHP 7

I recently downloaded PHP 7 and been trying to make my core plugin work on it, everything seems to run fine except AsyncTask code. For some reason, my server always crashes when it the task reaches the onCompletion method. I haven't experienced this issue on PHP 5. Not sure what is really going on here, probably something changed in PHP/pthreads?

Here is the crash dump, something about pthreads not able to access an object that has already been destroyed, not sure...

Code:

PocketMine-MP Crash Dump Sat Feb 27 22:00:23 CST 2016

Error: pthreads detected an attempt to connect to an object which has already been destroyed
File: /plugins/LeafCTF-OOP/src/rekkuzarage/leaf/ctf/tasks/onQueryTask
Line: 142
Type: notice

THIS CRASH WAS CAUSED BY A PLUGIN
BAD PLUGIN: LeafCTF v1.2.0

Code:
[133]             case "syncCoins":
[134]                 $server->getPluginManager()->getPlugin("LeafCTF")->queryTaskDone($this->getMethod, $this->log, $this->getPlayer);
[135]             break;
[136]          
[137]             case "syncKD":
[138]                 $server->getPluginManager()->getPlugin("LeafCTF")->queryTaskDone($this->getMethod, $this->log, $this->getPlayer);
[139]             break;
[140]          
[141]             case "syncRanks":
[142]                 $server->getPluginManager()->getPlugin("LeafCTF")->queryTaskDone($this->getMethod, $this->log, $this->getPlayer);
[143]             break;
[144]          
[145]             case "saveRanks":
[146]                 $server->getPluginManager()->getPlugin("LeafCTF")->queryTaskDone($this->getMethod, $this->log, $this->getPlayer);
[147]             break;
[148]          
[149]             case "playerRegistered":
[150]                 $server->getPluginManager()->getPlugin("LeafCTF")->queryTaskDone($this->getMethod, $this->log, $this->getPlayer);
[151]             break;
[152]             

Below is the actual code. A partial version of my core's main class and the AysncTask class. Hopefully, enough information to solve this issue

Async Task works perfectly on my server though...

Could you show me an example of your task? Maybe, I didn't code it correctly.

Might help: https://github.com/krakjoe/pthreads/issues/511

Thanks! It is fixed now, I guess you can't pass arrays through threads with pthreads (PHP 7). Also below is a comment from Krakjoe (a developer of pthreads) that is better worded. He is basically saying that arrays will be destroyed/deleted when set as a property of a thread, please correct me if I'm wrong.

• "array coerced to Volatile when set as member of Threaded" ~ Krakjoe

Live signs has this same issue

Just serialize() arrays before passing, and unserialize() when using.

Interesting. There is always a way to do things, I guess!

Well of course anything is possible