Roald Baudoux

I got Max crashing today and looking at the crashlog I read that it was linked to Java stuff. This sounds strange to me because I got rid of every possible Java external I have been using. So where does this Java come from ? Is JUCE using Java in any way ? I hope it doesn't.

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread:  0  Java: AWT-AppKit  Dispatch queue: com.apple.main-thread

Application Specific Information:

Java information:
 Exception type: Bus Error (0xa) at pc=00000000ffff1090

 Java VM: Java HotSpot(TM) Client VM (20.12-b01-434 mixed mode macosx-x86)

Current thread (000000003c801c00):  JavaThread "AWT-AppKit" [_thread_in_native, id=-1604528832, stack(00000000bf800000,00000000c0000000)]
Stack: [00000000bf800000,00000000c0000000]

Java Threads: ( => current thread )
  000000003fa16000 JavaThread "AWT-Shutdown" [_thread_blocked, id=-1309048832, stack(00000000b1e98000,00000000b1f98000)]
  000000003f9d6800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=-1311162368, stack(00000000b1c94000,00000000b1d94000)]
  0000000055801000 JavaThread "C1 CompilerThread0" daemon [_thread_blocked, id=-1312219136, stack(00000000b1b92000,00000000b1c92000)]
  0000000055800000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=-1313275904, stack(00000000b1a90000,00000000b1b90000)]
  0000000055004400 JavaThread "Surrogate Locker Thread (Concurrent GC)" daemon [_thread_blocked, id=-1314332672, stack(00000000b198e000,00000000b1a8e000)]
  000000003f9ce800 JavaThread "Finalizer" daemon [_thread_blocked, id=-1315389440, stack(00000000b188c000,00000000b198c000)]
  000000003f9cd800 JavaThread "Reference Handler" daemon [_thread_blocked, id=-1316446208, stack(00000000b178a000,00000000b188a000)]
=>000000003c801c00 JavaThread "AWT-AppKit" [_thread_in_native, id=-1604528832, stack(00000000bf800000,00000000c0000000)]
Other Threads:
  000000003f9cac00 VMThread [stack: 00000000b1688000,00000000b1788000] [id=-1317502976]
  000000003f9e0000 WatcherThread [stack: 00000000b1d96000,00000000b1e96000] [id=-1310105600]

VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None

Heap
 par new generation   total 14784K, used 2394K [0000000040000000, 0000000041000000, 0000000042000000)
  eden space 13184K,  18% used [0000000040000000, 0000000040256930, 0000000040ce0000)
  from space 1600K,   0% used [0000000040ce0000, 0000000040ce0000, 0000000040e70000)
  to   space 1600K,   0% used [0000000040e70000, 0000000040e70000, 0000000041000000)
 concurrent mark-sweep generation total 49152K, used 0K [0000000042000000, 0000000045000000, 0000000050000000)
 concurrent-mark-sweep perm gen total 12288K, used 4278K [0000000050000000, 0000000050c00000, 0000000054000000)

Code Cache  [000000003d001000, 000000003d08a000, 000000003f001000)
 total_blobs=183 nmethods=49 adapters=78 free_code_cache=33000576 largest_free_block=0

Virtual Machine Arguments:
JVM Args: -Xincgc -Xms64m -Xmx256m
Java Command: 
Launcher Type: generic
Physical Memory: Page Size = 4k, Total = 8192M, Free = 17592186042580M

Thread 0 Crashed:  Java: AWT-AppKit  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib                 0xffff1090 __memset_pattern + 144
1   com.cycling74.Max                 0x003c1f75 void juce::SoftwareRendererClasses::ClipRegionBase::renderSolidFill(juce::SoftwareRendererClasses::ClipRegion_RectangleList::SubRectangleIterator&, juce::Image::BitmapData const&, juce::PixelARGB const&, bool, juce::PixelRGB*) + 186
2   com.cycling74.Max                 0x003ba9e8 juce::SoftwareRendererClasses::ClipRegion_RectangleList::fillRectWithColour(juce::Image::BitmapData&, juce::Rectangle const&, juce::PixelARGB const&, bool) const + 138
3   com.cycling74.Max                 0x003c35c8 juce::LowLevelGraphicsSoftwareRenderer::SavedState::fillRect(juce::Rectangle const&, bool) + 196
4   com.cycling74.Max                 0x003a1ee1 juce::LowLevelGraphicsSoftwareRenderer::fillRect(juce::Rectangle const&, bool) + 35
5   com.cycling74.Max                 0x003a10b5 juce::Graphics::fillAll(juce::Colour const&) const + 127
6   com.cycling74.Max                 0x00198fb1 MaxTopLevelWindow::paint(juce::Graphics&) + 155
7   com.cycling74.Max                 0x0032eaf6 juce::Component::paintComponent(juce::Graphics&) + 348
8   com.cycling74.Max                 0x0032ebbe juce::Component::paintComponentAndChildren(juce::Graphics&) + 140
9   com.cycling74.Max                 0x0032ef2a juce::Component::paintEntireComponent(juce::Graphics&, bool) + 312
10  com.cycling74.Max                 0x003960e6 juce::ComponentPeer::handlePaint(juce::LowLevelGraphicsContext&) + 92
11  com.cycling74.Max                 0x00435610 juce::NSViewComponentPeer::drawRect(_NSRect) + 1190
12  com.cycling74.Max                 0x0042b99d -[JuceNSView_1_52_105_3 drawRect:] + 51
13  com.apple.AppKit                  0x99d6d61e -[NSView _drawRect:clip:] + 3510
14  com.apple.AppKit                  0x99d6c2bc -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1600
15  com.apple.AppKit                  0x99d6c5f1 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2421
16  com.apple.AppKit                  0x99d6a7db -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 711
17  com.apple.AppKit                  0x99d6a34f -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 265
18  com.apple.AppKit                  0x99d66c96 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 3309
19  com.apple.AppKit                  0x99cc784b -[NSView displayIfNeeded] + 818
20  com.apple.AppKit                  0x99c90b64 -[NSWindow displayIfNeeded] + 204
21  com.apple.AppKit                  0x99cc207e _handleWindowNeedsDisplay + 696
22  com.apple.CoreFoundation          0x980f5dd2 __CFRunLoopDoObservers + 1186
23  com.apple.CoreFoundation          0x980b1ced __CFRunLoopRun + 557
24  com.apple.CoreFoundation          0x980b13c4 CFRunLoopRunSpecific + 452
25  com.apple.CoreFoundation          0x980b11f1 CFRunLoopRunInMode + 97
26  com.apple.HIToolbox               0x9008ad60 RunCurrentEventLoopInMode + 392
27  com.apple.HIToolbox               0x9008aa53 ReceiveNextEventCommon + 158
28  com.apple.HIToolbox               0x9008a99c BlockUntilNextEventMatchingListInMode + 81
29  com.apple.AppKit                  0x99c98595 _DPSNextEvent + 847
30  com.apple.AppKit                  0x99c97dd6 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 156
31  com.apple.AppKit                  0x99c5a1f3 -[NSApplication run] + 821
32  com.cycling74.Max                 0x0043270f juce::MessageManager::runDispatchLoop() + 731
33  com.cycling74.Max                 0x002c1f02 juce::JUCEApplication::main(juce::StringArray const&) + 68
34  com.cycling74.Max                 0x002c2025 juce::JUCEApplication::main(int, char const**) + 73
35  com.cycling74.Max                 0x0000db8b _start + 209
36  com.cycling74.Max                 0x0000dab9 start + 41


Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread:  0  Java: AWT-AppKit  Dispatch queue: com.apple.main-thread

Application Specific Information:

Java information:
 Exception type: Bus Error (0xa) at pc=00000000ffff1090

 Java VM: Java HotSpot(TM) Client VM (20.12-b01-434 mixed mode macosx-x86)

Current thread (000000003c801c00):  JavaThread "AWT-AppKit" [_thread_in_native, id=-1604528832, stack(00000000bf800000,00000000c0000000)]
Stack: [00000000bf800000,00000000c0000000]

Java Threads: ( => current thread )
  000000003fa16000 JavaThread "AWT-Shutdown" [_thread_blocked, id=-1309048832, stack(00000000b1e98000,00000000b1f98000)]
  000000003f9d6800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=-1311162368, stack(00000000b1c94000,00000000b1d94000)]
  0000000055801000 JavaThread "C1 CompilerThread0" daemon [_thread_blocked, id=-1312219136, stack(00000000b1b92000,00000000b1c92000)]
  0000000055800000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=-1313275904, stack(00000000b1a90000,00000000b1b90000)]
  0000000055004400 JavaThread "Surrogate Locker Thread (Concurrent GC)" daemon [_thread_blocked, id=-1314332672, stack(00000000b198e000,00000000b1a8e000)]
  000000003f9ce800 JavaThread "Finalizer" daemon [_thread_blocked, id=-1315389440, stack(00000000b188c000,00000000b198c000)]
  000000003f9cd800 JavaThread "Reference Handler" daemon [_thread_blocked, id=-1316446208, stack(00000000b178a000,00000000b188a000)]
=>000000003c801c00 JavaThread "AWT-AppKit" [_thread_in_native, id=-1604528832, stack(00000000bf800000,00000000c0000000)]
Other Threads:
  000000003f9cac00 VMThread [stack: 00000000b1688000,00000000b1788000] [id=-1317502976]
  000000003f9e0000 WatcherThread [stack: 00000000b1d96000,00000000b1e96000] [id=-1310105600]

VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None

Heap
 par new generation   total 14784K, used 2394K [0000000040000000, 0000000041000000, 0000000042000000)
  eden space 13184K,  18% used [0000000040000000, 0000000040256930, 0000000040ce0000)
  from space 1600K,   0% used [0000000040ce0000, 0000000040ce0000, 0000000040e70000)
  to   space 1600K,   0% used [0000000040e70000, 0000000040e70000, 0000000041000000)
 concurrent mark-sweep generation total 49152K, used 0K [0000000042000000, 0000000045000000, 0000000050000000)
 concurrent-mark-sweep perm gen total 12288K, used 4278K [0000000050000000, 0000000050c00000, 0000000054000000)

Code Cache  [000000003d001000, 000000003d08a000, 000000003f001000)
 total_blobs=183 nmethods=49 adapters=78 free_code_cache=33000576 largest_free_block=0

Virtual Machine Arguments:
JVM Args: -Xincgc -Xms64m -Xmx256m
Java Command: 
Launcher Type: generic
Physical Memory: Page Size = 4k, Total = 8192M, Free = 17592186042580M

Thread 0 Crashed:  Java: AWT-AppKit  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib             	0xffff1090 __memset_pattern + 144
1   com.cycling74.Max             	0x003c1f75 void juce::SoftwareRendererClasses::ClipRegionBase::renderSolidFill(juce::SoftwareRendererClasses::ClipRegion_RectangleList::SubRectangleIterator&, juce::Image::BitmapData const&, juce::PixelARGB const&, bool, juce::PixelRGB*) + 186
2   com.cycling74.Max             	0x003ba9e8 juce::SoftwareRendererClasses::ClipRegion_RectangleList::fillRectWithColour(juce::Image::BitmapData&, juce::Rectangle const&, juce::PixelARGB const&, bool) const + 138
3   com.cycling74.Max             	0x003c35c8 juce::LowLevelGraphicsSoftwareRenderer::SavedState::fillRect(juce::Rectangle const&, bool) + 196
4   com.cycling74.Max             	0x003a1ee1 juce::LowLevelGraphicsSoftwareRenderer::fillRect(juce::Rectangle const&, bool) + 35
5   com.cycling74.Max             	0x003a10b5 juce::Graphics::fillAll(juce::Colour const&) const + 127
6   com.cycling74.Max             	0x00198fb1 MaxTopLevelWindow::paint(juce::Graphics&) + 155
7   com.cycling74.Max             	0x0032eaf6 juce::Component::paintComponent(juce::Graphics&) + 348
8   com.cycling74.Max             	0x0032ebbe juce::Component::paintComponentAndChildren(juce::Graphics&) + 140
9   com.cycling74.Max             	0x0032ef2a juce::Component::paintEntireComponent(juce::Graphics&, bool) + 312
10  com.cycling74.Max             	0x003960e6 juce::ComponentPeer::handlePaint(juce::LowLevelGraphicsContext&) + 92
11  com.cycling74.Max             	0x00435610 juce::NSViewComponentPeer::drawRect(_NSRect) + 1190
12  com.cycling74.Max             	0x0042b99d -[JuceNSView_1_52_105_3 drawRect:] + 51
13  com.apple.AppKit              	0x99d6d61e -[NSView _drawRect:clip:] + 3510
14  com.apple.AppKit              	0x99d6c2bc -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1600
15  com.apple.AppKit              	0x99d6c5f1 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2421
16  com.apple.AppKit              	0x99d6a7db -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 711
17  com.apple.AppKit              	0x99d6a34f -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 265
18  com.apple.AppKit              	0x99d66c96 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 3309
19  com.apple.AppKit              	0x99cc784b -[NSView displayIfNeeded] + 818
20  com.apple.AppKit              	0x99c90b64 -[NSWindow displayIfNeeded] + 204
21  com.apple.AppKit              	0x99cc207e _handleWindowNeedsDisplay + 696
22  com.apple.CoreFoundation      	0x980f5dd2 __CFRunLoopDoObservers + 1186
23  com.apple.CoreFoundation      	0x980b1ced __CFRunLoopRun + 557
24  com.apple.CoreFoundation      	0x980b13c4 CFRunLoopRunSpecific + 452
25  com.apple.CoreFoundation      	0x980b11f1 CFRunLoopRunInMode + 97
26  com.apple.HIToolbox           	0x9008ad60 RunCurrentEventLoopInMode + 392
27  com.apple.HIToolbox           	0x9008aa53 ReceiveNextEventCommon + 158
28  com.apple.HIToolbox           	0x9008a99c BlockUntilNextEventMatchingListInMode + 81
29  com.apple.AppKit              	0x99c98595 _DPSNextEvent + 847
30  com.apple.AppKit              	0x99c97dd6 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 156
31  com.apple.AppKit              	0x99c5a1f3 -[NSApplication run] + 821
32  com.cycling74.Max             	0x0043270f juce::MessageManager::runDispatchLoop() + 731
33  com.cycling74.Max             	0x002c1f02 juce::JUCEApplication::main(juce::StringArray const&) + 68
34  com.cycling74.Max             	0x002c2025 juce::JUCEApplication::main(int, char const**) + 73
35  com.cycling74.Max             	0x0000db8b _start + 209
36  com.cycling74.Max             	0x0000dab9 start + 41


is-there-some-java-behind-the-scenes-in-the-max-program-itself

Hello Nicolas, thank you for the insight.

In between I have discovered that it was my mistake: there was a shy, innocent-looking, tiny mxj bufOp object left in a subpatcher. It wasn't used at all. But alone it made the CPU going from 29% to more than 50% and probably caused crashes for months. So it got wiped out, disintegrated, nuked. How could such a crap make its way into Max ?

...not so easy !!!!! I still got crashes related to Java. Grmbl.

I am using the 2C Aether VST reverb plug-in. Is it possible that it includes some Java code ?

Using sampling in the activity monitor I discovered the Maxlua framework was appearing just before some Java stuff. I read 

 therefore I was not afraid to remove the Maxlua framework from the application package. Now Max seems to be really clean from Java.

Using sampling in the activity monitor I discovered the Maxlua framework was appearing just before some Java stuff. I read this topic therefore I was not afraid to remove the Maxlua framework from the application package. Now Max seems to be really clean from Java.


Removing the MaxLua framework made the use of gen~ impossible. Therefore I went back to the normal Max version.

However I'd be happy to have an official C74 comment about absence/presence of Java stuff in Max when no mxj objet is open.

MaxLua has zero Java dependencies. Max in general will not instantiate a JavaVM unless an instance of mxj or mxj~has been loaded. Jitter links to the Java frameworks, but will not create a JVM and will not launch any Java threads.

So the only possibilities I can imagine from what you are describing is that there is still some mxj object being used by your patches, or there is some other third party external or system extension or something else on your machine which is causing you these issues.

I would suggest a fresh install of Max with nothing additional in the search path, and then bit by bit test out your patches to see what the culprit may be. You can easily remove mxj and mxj~ from your search path to get rid of any Java loading, which also might give you a clue as to errors in the max window when something is trying to load mxj.

Note that once a single mxj object is loaded, java will be running until you quit Max.

Otherwise, I'd suggest you follow up with support.

MaxLua has zero Java dependencies. Max in general will not instantiate a JavaVM unless an instance of mxj or mxj~has been loaded. Jitter links to the Java frameworks, but will not create a JVM and will not launch any Java threads. 

So the only possibilities I can imagine from what you are describing is that there is still some mxj object being used by your patches, or there is some other third party external or system extension or something else on your machine which is causing you these issues. 

Thanks, this is crystal clear. I had removed mxj from my search patch yet but did not even remember there was mxj~(I have almost never used it).

Oh and by the way, your crashlog above simply suggests something has corrupted memory in the main thread (while trying to paint the background of a max patcher). It's really doubtful that Java is the culprit here, unless you're running out of memory (Java has a serious memory footprint, something like 400MB or so).

The fact that there is Java information here doesn't mean that the crash is related to Java. Apple's crash log system simply tries to also provide Java relevant information if Java has been loaded. The main thread isn't a Java initiated thread, it is simply the thread on which the Java AWT has been run or associated. So it really seems to be a red herring here.

However if you don't have any need to use Java in your patches, you might as well avoid using mxj and incurring the memory cost :)

Oh and by the way, your crashlog above simply suggests something has corrupted memory in the main thread (while trying to paint the background of a max patcher). It's really doubtful that Java is the culprit here, unless you're running out of memory (Java has a serious memory footprint, something like 400MB or so). 

However if you don't have any need to use Java in your patches, you might as well avoid using mxj and incurring the memory cost :)


Interesting. What kind of event/data coud cause corruption in the memory ?

Anything which touches memory. That's why we ask for so much information and examples in crash reports.

Does somebody can help me to find what causing this crash ?

Path: /Applications/Max.app/Contents/MacOS/Max

Anonymous UUID: DA4F183A-6BCE-34D8-7F85-7812EF375DCB

Crashed Thread: 0 Java: AWT-AppKit Dispatch queue: com.apple.main-thread

Exception Codes: KERN_INVALID_ADDRESS at 0x00000000c8a0eca6

Stack 00000000bf7e1000-00000000bffde000 [ 8180K] rw-/rwx SM=COW

Submap 00000000ffff0000-00000000ffff1000 [ 4K] r--/r-- SM=PRV process-only VM submap

Exception type: Bus Error (0xa) at pc=0000000096f700e6

Java VM: Java HotSpot(TM) Client VM (20.65-b04-466.1 mixed mode macosx-x86)

Current thread (0000000085360400): JavaThread "AWT-AppKit" [_thread_in_native, id=-1605058092, stack(00000000bf7de000,00000000bffde000)]

Stack: [00000000bf7de000,00000000bffde000]

000000008539bc00 JavaThread "Thread-3" [_thread_in_native, id=-1224683520, stack(00000000b6f8d000,00000000b700d000)]

0000000086bafc00 JavaThread "AWT-Shutdown" [_thread_blocked, id=-1339453440, stack(00000000b0199000,00000000b0299000)]

0000000085383400 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=-1198747648, stack(00000000b87c9000,00000000b88c9000)]

0000000085c60c00 JavaThread "C1 CompilerThread0" daemon [_thread_blocked, id=-1199804416, stack(00000000b86c7000,00000000b87c7000)]

00000000863e3400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=-1200861184, stack(00000000b85c5000,00000000b86c5000)]

00000000863e2400 JavaThread "Surrogate Locker Thread (Concurrent GC)" daemon [_thread_blocked, id=-1201917952, stack(00000000b84c3000,00000000b85c3000)]

0000000085377000 JavaThread "Finalizer" daemon [_thread_blocked, id=-1202974720, stack(00000000b83c1000,00000000b84c1000)]

0000000085376000 JavaThread "Reference Handler" daemon [_thread_blocked, id=-1204031488, stack(00000000b82bf000,00000000b83bf000)]

=>0000000085360400 JavaThread "AWT-AppKit" [_thread_in_native, id=-1605058092, stack(00000000bf7de000,00000000bffde000)]

0000000085373800 VMThread [stack: 00000000b81bd000,00000000b82bd000] [id=-1205088256]

00000000863e4c00 WatcherThread [stack: 00000000b88cb000,00000000b89cb000] [id=-1197690880]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

par new generation total 14784K, used 3467K [0000000017d50000, 0000000018d50000, 0000000019d50000)

eden space 13184K, 22% used [0000000017d50000, 00000000180459b8, 0000000018a30000)

from space 1600K, 27% used [0000000018bc0000, 0000000018c2d400, 0000000018d50000)

to space 1600K, 0% used [0000000018a30000, 0000000018a30000, 0000000018bc0000)

concurrent mark-sweep generation total 49152K, used 0K [0000000019d50000, 000000001cd50000, 0000000027d50000)

concurrent-mark-sweep perm gen total 12288K, used 4515K [0000000027d50000, 0000000028950000, 000000002bd50000)

Code Cache [0000000015cc3000, 0000000015d64000, 0000000017cc3000)

total_blobs=259 nmethods=124 adapters=79 free_code_cache=32904384 largest_free_block=0

Physical Memory: Page Size = 4k, Total = 16384M, Free = 616M

Thread 0 Crashed:: Java: AWT-AppKit Dispatch queue: com.apple.main-thread

0 libobjc.A.dylib     0x96f700e6 _class_initialize + 25

1 libobjc.A.dylib     0x96f7838e lookUpImpOrForward + 117

2 libobjc.A.dylib     0x96f7006e _class_lookupMethodAndLoadCache3 + 55

3 libobjc.A.dylib     0x96f6c0e1 objc_msgSend + 81

4 com.apple.CoreFoundation     0x9a929615 __CFTypeCollectionRelease + 165

5 com.apple.CoreFoundation     0x9a918a7e __CFBasicHashDrain + 494

6 com.apple.CoreFoundation     0x9a918864 __CFBasicHashDeallocate + 52

7 com.apple.CoreFoundation     0x9a906b3b CFRelease + 859

8 com.apple.CoreFoundation     0x9a929615 __CFTypeCollectionRelease + 165

9 com.apple.CoreFoundation     0x9a918a7e __CFBasicHashDrain + 494

10 com.apple.CoreFoundation     0x9a918864 __CFBasicHashDeallocate + 52

11 com.apple.CoreFoundation     0x9a906b3b CFRelease + 859

12 com.apple.CoreVideo     0x962bc23d CVBuffer::finalize() + 49

13 com.apple.CoreVideo     0x962c105e classFinalize(void const*) + 20

14 com.apple.CoreFoundation     0x9a906b3b CFRelease + 859

15 com.cycling74.jit-gl-hap     0x2d60db56 jit_gl_hap_draw_frame + 107

16 com.cycling74.jit-gl-hap     0x2d60b573 -[HapQuickTimePlayback getCurFrame] + 88

17 com.cycling74.jit-gl-hap     0x2d60c413 jit_gl_hap_getcurrentframe + 42

18 com.cycling74.jit-gl-hap     0x2d60f36f jit_gl_hap_draw + 124

19 com.cycling74.Max     0x0012b0cf object_method_imp + 816

20 com.cycling74.JitterAPI     0x10cfbbbe jit_object_method + 143

21 com.cycling74.JitterAPI     0x10c9b004 jit_ob3d_drawimmediate + 221

22 com.cycling74.Max     0x0012b0cf object_method_imp + 816

23 com.cycling74.JitterAPI     0x10cfbbbe jit_object_method + 143

24 com.cycling74.JitterAPI     0x10d90a9f draw_client_callback + 483

25 com.cycling74.Max     0x000bc8b3 0x23000 + 628915

26 com.cycling74.Max     0x000bc96b linklist_funall + 39

27 com.cycling74.MaxAPI     0x079f818b linklist_funall + 59

28 com.cycling74.JitterAPI     0x10d90ef4 ob3d_client_list_iterate_safe + 53

29 com.cycling74.JitterAPI     0x10d92c80 do_draw_clients + 1234

30 com.cycling74.JitterAPI     0x10d92f5c jit_gl_scenegraph_draw_clients + 129

31 com.cycling74.JitterAPI     0x10d8d8ee jit_gl_node_do_draw + 453

32 com.cycling74.JitterAPI     0x10d8d94c jit_gl_node_draw + 28

33 com.cycling74.Max     0x0012b0cf object_method_imp + 816

34 com.cycling74.JitterAPI     0x10cfbbbe jit_object_method + 143

35 com.cycling74.JitterAPI     0x10c9afb8 jit_ob3d_drawimmediate + 145

36 com.cycling74.Max     0x0012b0cf object_method_imp + 816

37 com.cycling74.JitterAPI     0x10cfbbbe jit_object_method + 143

38 com.cycling74.JitterAPI     0x10d90a9f draw_client_callback + 483

39 com.cycling74.Max     0x000bc8b3 0x23000 + 628915

40 com.cycling74.Max     0x000bc96b linklist_funall + 39

41 com.cycling74.MaxAPI     0x079f818b linklist_funall + 59

42 com.cycling74.JitterAPI     0x10d90ef4 ob3d_client_list_iterate_safe + 53

43 com.cycling74.JitterAPI     0x10d92c80 do_draw_clients + 1234

44 com.cycling74.JitterAPI     0x10d9300e jit_gl_scenegraph_draw + 154

45 com.cycling74.Max     0x0012b0cf object_method_imp + 816

46 com.cycling74.JitterAPI     0x10cfbbbe jit_object_method + 143

47 com.cycling74.jit-gl-render     0x12726f50 jit_gl_render_draw + 104

48 com.cycling74.jit-gl-render     0x1272795f jit_gl_render_drawswap + 46

Thread 1:: Dispatch queue: com.apple.libdispatch-manager

0 libsystem_kernel.dylib     0x973da8d2 kevent64 + 10

1 libdispatch.dylib     0x962f173f _dispatch_mgr_invoke + 245

2 libdispatch.dylib     0x962f13a2 _dispatch_mgr_thread + 52

0 libsystem_kernel.dylib     0x973d3a2e mach_msg_trap + 10

1 libsystem_kernel.dylib     0x973d2ad0 mach_msg + 68

2 com.apple.CoreFoundation     0x9a966ae6 __CFRunLoopServiceMachPort + 214

3 com.apple.CoreFoundation     0x9a965ef9 __CFRunLoopRun + 1529

4 com.apple.CoreFoundation     0x9a965696 CFRunLoopRunSpecific + 390

5 com.apple.CoreFoundation     0x9a9654fb CFRunLoopRunInMode + 123

6 com.apple.Foundation     0x92b6bd3a -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 305

7 com.cycling74.chromium     0x00bc5a2f 0xa99000 + 1231407

8 com.cycling74.chromium     0x00bc554c 0xa99000 + 1230156

9 com.cycling74.chromium     0x00c08fd2 0xa99000 + 1507282

10 com.cycling74.chromium     0x00c23c7e 0xa99000 + 1617022

11 com.cycling74.chromium     0x00c089ba 0xa99000 + 1505722

12 com.cycling74.chromium     0x00c3b311 0xa99000 + 1712913

13 com.cycling74.chromium     0x00c3b3ea 0xa99000 + 1713130

14 com.cycling74.chromium     0x00c35c05 0xa99000 + 1690629

15 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

16 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

17 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

0 libsystem_kernel.dylib     0x973da8b6 kevent + 10

1 com.cycling74.chromium     0x00c4de5b 0xa99000 + 1789531

2 com.cycling74.chromium     0x00c4bb29 0xa99000 + 1780521

3 com.cycling74.chromium     0x00bc4222 0xa99000 + 1225250

4 com.cycling74.chromium     0x00c08fd2 0xa99000 + 1507282

5 com.cycling74.chromium     0x00c23c7e 0xa99000 + 1617022

6 com.cycling74.chromium     0x00c089ba 0xa99000 + 1505722

7 com.cycling74.chromium     0x00c3b311 0xa99000 + 1712913

8 com.cycling74.chromium     0x00c3b3ea 0xa99000 + 1713130

9 com.cycling74.chromium     0x00c35c05 0xa99000 + 1690629

10 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

11 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

12 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

0 libsystem_kernel.dylib     0x973d9516 __psynch_cvwait + 10

1 libsystem_pthread.dylib     0x92af4b06 _pthread_cond_wait + 726

2 libsystem_pthread.dylib     0x92af81d1 pthread_cond_wait$UNIX2003 + 71

3 com.cycling74.chromium     0x00c30423 0xa99000 + 1668131

4 com.cycling74.chromium     0x00c3102b 0xa99000 + 1671211

5 com.cycling74.chromium     0x00c30e22 0xa99000 + 1670690

6 com.cycling74.chromium     0x00c0cf6c 0xa99000 + 1523564

7 com.cycling74.chromium     0x00c08fd2 0xa99000 + 1507282

8 com.cycling74.chromium     0x00c23c7e 0xa99000 + 1617022

9 com.cycling74.chromium     0x00c089ba 0xa99000 + 1505722

10 com.cycling74.chromium     0x00c3b311 0xa99000 + 1712913

11 com.cycling74.chromium     0x00c90209 0xa99000 + 2060809

12 com.cycling74.chromium     0x00c905e2 0xa99000 + 2061794

8 com.cycling74.chromium     0x00c90299 0xa99000 + 2060953

9 com.cycling74.chromium     0x00c905f6 0xa99000 + 2061814

10 com.cycling74.chromium     0x00c3b3ea 0xa99000 + 1713130

11 com.cycling74.chromium     0x00c35c05 0xa99000 + 1690629

12 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

13 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

14 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

11 com.cycling74.chromium     0x00c90329 0xa99000 + 2061097

12 com.cycling74.chromium     0x00c9060a 0xa99000 + 2061834

11 com.cycling74.chromium     0x00c903b9 0xa99000 + 2061241

12 com.cycling74.chromium     0x00c9061e 0xa99000 + 2061854

8 com.cycling74.chromium     0x00c90449 0xa99000 + 2061385

9 com.cycling74.chromium     0x00c90632 0xa99000 + 2061874

8 com.cycling74.chromium     0x00c904d9 0xa99000 + 2061529

9 com.cycling74.chromium     0x00c90643 0xa99000 + 2061891

11 com.cycling74.chromium     0x00c3b3ea 0xa99000 + 1713130

12 com.cycling74.chromium     0x00c35c05 0xa99000 + 1690629

13 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

14 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

15 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

4 com.cycling74.chromium     0x00c377cf 0xa99000 + 1697743

5 com.cycling74.chromium     0x00c365bc 0xa99000 + 1693116

6 com.cycling74.chromium     0x00c3a9e3 0xa99000 + 1710563

7 com.cycling74.chromium     0x00c35c05 0xa99000 + 1690629

8 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

9 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

10 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

2 com.apple.audio.midi.CoreMIDI     0x00a0dac3 XServerMachPort::ReceiveMessage(int&, void*, int&) + 123

3 com.apple.audio.midi.CoreMIDI     0x00a2a539 MIDIProcess::RunMIDIInThread() + 151

4 com.apple.audio.midi.CoreMIDI     0x00a2e914 MIDIProcess::MIDIInPortThread::Run() + 24

5 com.apple.audio.midi.CoreMIDI     0x00a0ee2b XThread::RunHelper(void*) + 17

6 com.apple.audio.midi.CoreMIDI     0x00a0e96c CAPThread::Entry(CAPThread*) + 134

7 libsystem_pthread.dylib     0x92af3ecf _pthread_body + 138

8 libsystem_pthread.dylib     0x92af3e45 _pthread_start + 162

9 libsystem_pthread.dylib     0x92af1f0e thread_start + 34

0 libsystem_kernel.dylib     0x973dacfa __poll + 10

Is there some Java "behind the scenes" in the Max program itself ?