John MacCallum

I'm getting reports that Max is crashing when opening a patch that contains my midifile java object (

 under OSX 10.5.8 and Max 5.1.1. Both people report that this behavior is new since they upgraded to 5.1.1, so I'm wondering if anything in the mxj object has changed that I should know about. I can post a crashlog that was sent to me if that's useful. Unfortunately, since I can't reproduce the problem on OSX 10.6.1 and Max 5.1.1, I'm not sure how to go about fixing it...

I'm getting reports that Max is crashing when opening a patch that contains my midifile java object (http://cnmat.berkeley.edu/downloads) under OSX 10.5.8 and Max 5.1.1.   Both people report that this behavior is new since they upgraded to 5.1.1, so I'm wondering if anything in the mxj object has changed that I should know about.  I can post a crashlog that was sent to me if that's useful.  Unfortunately, since I can't reproduce the problem on OSX 10.6.1 and Max 5.1.1, I'm not sure how to go about fixing it...

mxj-crashing

I've upgraded to OSX version 10.6.2 and version 5.1.2 (41620) of MaxMSP and I'm now experiencing the same behavior that various users have been telling me about. It's hard to tell, but it seems like it might be a problem with mxj since the same code that causes Max to crash, when modified slightly to run from the command line, runs just fine. I'm hoping someone at Cycling will have some insight into this. Maybe it has to do with java 6 that comes with the latest update of OSX?

////////////////////////////////////////////////

sequencer = MidiSystem.getSequencer(false);

Here's the relevant part of the crash report:

Path: /Applications/Max5/MaxMSP.app/Contents/MacOS/MaxMSP

Per-App Interval Since Last Report: 13011 sec

Anonymous UUID: 7C1A99DA-DB3C-46C4-877F-E434903CC1E0

Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000

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

Exception type: Bus Error (0xa) at pc=0x976dd8d0

Java VM: Java HotSpot(TM) Client VM (14.3-b01-101 mixed mode macosx-x86)

Current thread (0x1b800c00): JavaThread "AWT-AppKit" [_thread_in_native, id=-1609800448, stack(0xbf800000,0xc0000000)]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)

j com.sun.media.sound.MidiInDeviceProvider.nGetName(I)Ljava/lang/String;+0

j com.sun.media.sound.MidiInDeviceProvider.access$100(I)Ljava/lang/String;+1

j com.sun.media.sound.MidiInDeviceProvider$MidiInDeviceInfo.(ILjava/lang/Class;)V+2

j com.sun.media.sound.MidiInDeviceProvider$MidiInDeviceInfo.(ILjava/lang/Class;Lcom/sun/media/sound/MidiInDeviceProvider$1;)V+3

j com.sun.media.sound.MidiInDeviceProvider.createInfo(I)Lcom/sun/media/sound/AbstractMidiDeviceProvider$Info;+17

j com.sun.media.sound.AbstractMidiDeviceProvider.readDeviceInfos()V+101

j com.sun.media.sound.AbstractMidiDeviceProvider.getDeviceInfo()[Ljavax/sound/midi/MidiDevice$Info;+1

j javax.sound.midi.MidiSystem.getFirstDevice(Ljavax/sound/midi/spi/MidiDeviceProvider;Ljava/lang/Class;ZZ)Ljavax/sound/midi/MidiDevice;+1

j javax.sound.midi.MidiSystem.getFirstDevice(Ljava/util/List;Ljava/lang/Class;ZZ)Ljavax/sound/midi/MidiDevice;+32

j javax.sound.midi.MidiSystem.getFirstDevice(Ljava/util/List;Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+4

j javax.sound.midi.MidiSystem.getDefaultDevice(Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+89

j javax.sound.midi.MidiSystem.getDefaultDeviceWrapper(Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+1

j javax.sound.midi.MidiSystem.getSequencer(Z)Ljavax/sound/midi/Sequencer;+3

j midifile.([Lcom/cycling74/max/Atom;)V+10

0x1b8cc800 JavaThread "AWT-Shutdown" [_thread_blocked, id=-1319698432, stack(0xb1470000,0xb1570000)]

0x1b8ba800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=-1322344448, stack(0xb11ea000,0xb12ea000)]

0x1b8b9c00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=-1323401216, stack(0xb10e8000,0xb11e8000)]

0x1b8b8c00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=-1324457984, stack(0xb0fe6000,0xb10e6000)]

0x1b8b7c00 JavaThread "Surrogate Locker Thread (CMS)" daemon [_thread_blocked, id=-1325514752, stack(0xb0ee4000,0xb0fe4000)]

0x1b8ac800 JavaThread "Finalizer" daemon [_thread_blocked, id=-1326571520, stack(0xb0de2000,0xb0ee2000)]

0x1b8ab800 JavaThread "Reference Handler" daemon [_thread_blocked, id=-1327628288, stack(0xb0ce0000,0xb0de0000)]

=>0x1b800c00 JavaThread "AWT-AppKit" [_thread_in_native, id=-1609800448, stack(0xbf800000,0xc0000000)]

0x1b8a7c00 VMThread [stack: 0xb0bde000,0xb0cde000] [id=-1328685056]

0x1b8c3800 WatcherThread [stack: 0xb12ec000,0xb13ec000] [id=-1321287680]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

par new generation total 14336K, used 2468K [0x1e010000, 0x1f010000, 0x1f3c0000)

eden space 12288K, 20% used [0x1e010000, 0x1e279208, 0x1ec10000)

from space 2048K, 0% used [0x1ec10000, 0x1ec10000, 0x1ee10000)

to space 2048K, 0% used [0x1ee10000, 0x1ee10000, 0x1f010000)

concurrent mark-sweep generation total 49152K, used 0K [0x1f3c0000, 0x223c0000, 0x2e010000)

concurrent-mark-sweep perm gen total 12288K, used 4388K [0x2e010000, 0x2ec10000, 0x32010000)

Physical Memory: Page Size = 4k, Total = 2048M, Free = 282M

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

0 com.apple.CoreFoundation     0x976dd8d0 CFStringGetCStringPtr + 128

1 libjsound.jnilib     0x34955eea Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3284

2 libjsound.jnilib     0x3495602e Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3608

3 libjsound.jnilib     0x34956159 Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3907

4 libjsound.jnilib     0x349563b5 Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 4511

5 libjsound.jnilib     0x34956e79 Java_com_sun_media_sound_MidiInDeviceProvider_nGetName + 63

22 libclient.dylib     0x1acea7d0 JVM_Lseek + 149024

23 libclient.dylib     0x1acea576 JVM_Lseek + 148422

24 libclient.dylib     0x1acea546 JVM_Lseek + 148374

25 libclient.dylib     0x1ad00230 JVM_MonitorWait + 15088

26 libclient.dylib     0x1aee49b1 pss + 425857

27 com.cycling74.mxj     0x1a7cba66 call_constructor_with_coercion + 418

28 com.cycling74.mxj     0x1a7cc880 construct + 228

29 com.cycling74.mxj     0x1a7ccdb2 maxjava_new + 1322

30 com.cycling74.MaxMSP     0x0001cb2f typedmess_fun + 1973

31 com.cycling74.MaxMSP     0x000bb079 object_new_typed_flags + 637

32 com.cycling74.MaxMSP     0x000bb0b8 object_new_typed + 46

33 com.cycling74.MaxMSP     0x00011781 newload_internal + 165

34 com.cycling74.MaxMSP     0x00011a86 newload + 40

35 com.cycling74.MaxMSP     0x0001cb2f typedmess_fun + 1973

36 com.cycling74.MaxMSP     0x0001cbb9 typedmess + 83

37 com.cycling74.MaxMSP     0x0001d225 aeval + 893

38 com.cycling74.MaxMSP     0x00008730 atombuf_eval + 152

39 com.cycling74.MaxMSP     0x001608e7 jnewobj_new + 2283

40 com.cycling74.MaxMSP     0x0001cb2f typedmess_fun + 1973

41 com.cycling74.MaxMSP     0x000bb03e object_new_typed_flags + 578

42 com.cycling74.MaxMSP     0x000bb0b8 object_new_typed + 46

43 com.cycling74.MaxMSP     0x0016e38e jpatcher_newobject + 380

44 com.cycling74.MaxMSP     0x0016e8a5 jpatcher_pastefromdictionary + 403

45 com.cycling74.MaxMSP     0x0017e180 jpatcher_fromdictionary + 1692

46 com.cycling74.MaxMSP     0x0017e516 jpatcher_new + 900

47 com.cycling74.MaxMSP     0x0001cb2f typedmess_fun + 1973

48 com.cycling74.MaxMSP     0x000bb079 object_new_typed_flags + 637

I've upgraded to OSX version 10.6.2 and version 5.1.2 (41620) of MaxMSP and I'm now experiencing the same behavior that various users have been telling me about.  It's hard to tell, but it seems like it might be a problem with mxj since the same code that causes Max to crash, when modified slightly to run from the command line, runs just fine.  I'm hoping someone at Cycling will have some insight into this.  Maybe it has to do with java 6 that comes with the latest update of OSX?

////////////////////////////////////////////////
//MaxMSP code
import com.cycling74.max.*;
import javax.sound.midi.*;                                                                                                               

public class midifile extends MaxObject{
        private Sequencer sequencer = null;                                                                                              

        public midifile(Atom[] args){
                initSequence();
        }                                                                                                                                

        private void initSequence(){
                try{
                        //max crashes here
                        sequencer = MidiSystem.getSequencer(false);
                }catch(MidiUnavailableException e){
                        e.printStackTrace();
                }
        }
}                                                                                                                                                 

////////////////////////////////////////////////
//command line code
import javax.sound.midi.*;                                                                                                               

        public static void main(String[] args){
                midifile mf = new midifile();
                mf.initSequence();
        }                                                                                                                                

        private void initSequence(){
                try{
                        //max crashes here
                        sequencer = MidiSystem.getSequencer(false);
                }catch(MidiUnavailableException e){
                        e.printStackTrace();
                }
        }
}           

Process:         MaxMSP [2905]
Path:            /Applications/Max5/MaxMSP.app/Contents/MacOS/MaxMSP
Identifier:      com.cycling74.MaxMSP
Version:         5.1.2 (41620) (5.1.2)
Code Type:       X86 (Native)
Parent Process:  launchd [109]

Date/Time:       2010-02-09 14:39:02.168 -0800
OS Version:      Mac OS X 10.6.2 (10C540)
Report Version:  6

Interval Since Last Report:          26229 sec
Crashes Since Last Report:           15
Per-App Interval Since Last Report:  13011 sec
Per-App Crashes Since Last Report:   8
Anonymous UUID:                      7C1A99DA-DB3C-46C4-877F-E434903CC1E0

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

Java information:
 Exception type: Bus Error (0xa) at pc=0x976dd8d0

 Java VM: Java HotSpot(TM) Client VM (14.3-b01-101 mixed mode macosx-x86)

Current thread (0x1b800c00):  JavaThread "AWT-AppKit" [_thread_in_native, id=-1609800448, stack(0xbf800000,0xc0000000)]
Stack: [0xbf800000,0xc0000000]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  com.sun.media.sound.MidiInDeviceProvider.nGetName(I)Ljava/lang/String;+0
j  com.sun.media.sound.MidiInDeviceProvider.access$100(I)Ljava/lang/String;+1
j  com.sun.media.sound.MidiInDeviceProvider$MidiInDeviceInfo.(ILjava/lang/Class;)V+2
j  com.sun.media.sound.MidiInDeviceProvider$MidiInDeviceInfo.(ILjava/lang/Class;Lcom/sun/media/sound/MidiInDeviceProvider$1;)V+3
j  com.sun.media.sound.MidiInDeviceProvider.createInfo(I)Lcom/sun/media/sound/AbstractMidiDeviceProvider$Info;+17
j  com.sun.media.sound.AbstractMidiDeviceProvider.readDeviceInfos()V+101
j  com.sun.media.sound.AbstractMidiDeviceProvider.getDeviceInfo()[Ljavax/sound/midi/MidiDevice$Info;+1
j  javax.sound.midi.MidiSystem.getFirstDevice(Ljavax/sound/midi/spi/MidiDeviceProvider;Ljava/lang/Class;ZZ)Ljavax/sound/midi/MidiDevice;+1
j  javax.sound.midi.MidiSystem.getFirstDevice(Ljava/util/List;Ljava/lang/Class;ZZ)Ljavax/sound/midi/MidiDevice;+32
j  javax.sound.midi.MidiSystem.getFirstDevice(Ljava/util/List;Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+4
j  javax.sound.midi.MidiSystem.getDefaultDevice(Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+89
j  javax.sound.midi.MidiSystem.getDefaultDeviceWrapper(Ljava/lang/Class;)Ljavax/sound/midi/MidiDevice;+1
j  javax.sound.midi.MidiSystem.getSequencer(Z)Ljavax/sound/midi/Sequencer;+3
j  midifile.initSequence()V+2
j  midifile.([Lcom/cycling74/max/Atom;)V+10
v  ~StubRoutines::call_stub

Java Threads: ( => current thread )
  0x1b8cc800 JavaThread "AWT-Shutdown" [_thread_blocked, id=-1319698432, stack(0xb1470000,0xb1570000)]
  0x1b8ba800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=-1322344448, stack(0xb11ea000,0xb12ea000)]
  0x1b8b9c00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=-1323401216, stack(0xb10e8000,0xb11e8000)]
  0x1b8b8c00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=-1324457984, stack(0xb0fe6000,0xb10e6000)]
  0x1b8b7c00 JavaThread "Surrogate Locker Thread (CMS)" daemon [_thread_blocked, id=-1325514752, stack(0xb0ee4000,0xb0fe4000)]
  0x1b8ac800 JavaThread "Finalizer" daemon [_thread_blocked, id=-1326571520, stack(0xb0de2000,0xb0ee2000)]
  0x1b8ab800 JavaThread "Reference Handler" daemon [_thread_blocked, id=-1327628288, stack(0xb0ce0000,0xb0de0000)]
=>0x1b800c00 JavaThread "AWT-AppKit" [_thread_in_native, id=-1609800448, stack(0xbf800000,0xc0000000)]
Other Threads:
  0x1b8a7c00 VMThread [stack: 0xb0bde000,0xb0cde000] [id=-1328685056]
  0x1b8c3800 WatcherThread [stack: 0xb12ec000,0xb13ec000] [id=-1321287680]

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

Heap
 par new generation   total 14336K, used 2468K [0x1e010000, 0x1f010000, 0x1f3c0000)
  eden space 12288K,  20% used [0x1e010000, 0x1e279208, 0x1ec10000)
  from space 2048K,   0% used [0x1ec10000, 0x1ec10000, 0x1ee10000)
  to   space 2048K,   0% used [0x1ee10000, 0x1ee10000, 0x1f010000)
 concurrent mark-sweep generation total 49152K, used 0K [0x1f3c0000, 0x223c0000, 0x2e010000)
 concurrent-mark-sweep perm gen total 12288K, used 4388K [0x2e010000, 0x2ec10000, 0x32010000)

Virtual Machine Arguments:
JVM Args: -Xincgc -Xms64m -Xmx256m
Java Command: 
Launcher Type: generic
Physical Memory: Page Size = 4k, Total = 2048M, Free = 282M

Thread 0 Crashed:  Java: AWT-AppKit  Dispatch queue: com.apple.main-thread
0   com.apple.CoreFoundation      	0x976dd8d0 CFStringGetCStringPtr + 128
1   libjsound.jnilib              	0x34955eea Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3284
2   libjsound.jnilib              	0x3495602e Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3608
3   libjsound.jnilib              	0x34956159 Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 3907
4   libjsound.jnilib              	0x349563b5 Java_com_sun_media_sound_HAEShutdownHook_createNativeRef + 4511
5   libjsound.jnilib              	0x34956e79 Java_com_sun_media_sound_MidiInDeviceProvider_nGetName + 63
6   ???                           	0x1c00b839 0 + 469809209
7   ???                           	0x1c003f17 0 + 469778199
8   ???                           	0x1c003f17 0 + 469778199
9   ???                           	0x1c003db1 0 + 469777841
10  ???                           	0x1c003db1 0 + 469777841
11  ???                           	0x1c003f17 0 + 469778199
12  ???                           	0x1c003db1 0 + 469777841
13  ???                           	0x1c003f17 0 + 469778199
14  ???                           	0x1c003f17 0 + 469778199
15  ???                           	0x1c003f17 0 + 469778199
16  ???                           	0x1c003f17 0 + 469778199
17  ???                           	0x1c003f17 0 + 469778199
18  ???                           	0x1c003f17 0 + 469778199
19  ???                           	0x1c003f17 0 + 469778199
20  ???                           	0x1c003db1 0 + 469777841
21  ???                           	0x1c0012d3 0 + 469766867
22  libclient.dylib               	0x1acea7d0 JVM_Lseek + 149024
23  libclient.dylib               	0x1acea576 JVM_Lseek + 148422
24  libclient.dylib               	0x1acea546 JVM_Lseek + 148374
25  libclient.dylib               	0x1ad00230 JVM_MonitorWait + 15088
26  libclient.dylib               	0x1aee49b1 pss + 425857
27  com.cycling74.mxj             	0x1a7cba66 call_constructor_with_coercion + 418
28  com.cycling74.mxj             	0x1a7cc880 construct + 228
29  com.cycling74.mxj             	0x1a7ccdb2 maxjava_new + 1322
30  com.cycling74.MaxMSP          	0x0001cb2f typedmess_fun + 1973
31  com.cycling74.MaxMSP          	0x000bb079 object_new_typed_flags + 637
32  com.cycling74.MaxMSP          	0x000bb0b8 object_new_typed + 46
33  com.cycling74.MaxMSP          	0x00011781 newload_internal + 165
34  com.cycling74.MaxMSP          	0x00011a86 newload + 40
35  com.cycling74.MaxMSP          	0x0001cb2f typedmess_fun + 1973
36  com.cycling74.MaxMSP          	0x0001cbb9 typedmess + 83
37  com.cycling74.MaxMSP          	0x0001d225 aeval + 893
38  com.cycling74.MaxMSP          	0x00008730 atombuf_eval + 152
39  com.cycling74.MaxMSP          	0x001608e7 jnewobj_new + 2283
40  com.cycling74.MaxMSP          	0x0001cb2f typedmess_fun + 1973
41  com.cycling74.MaxMSP          	0x000bb03e object_new_typed_flags + 578
42  com.cycling74.MaxMSP          	0x000bb0b8 object_new_typed + 46
43  com.cycling74.MaxMSP          	0x0016e38e jpatcher_newobject + 380
44  com.cycling74.MaxMSP          	0x0016e8a5 jpatcher_pastefromdictionary + 403
45  com.cycling74.MaxMSP          	0x0017e180 jpatcher_fromdictionary + 1692
46  com.cycling74.MaxMSP          	0x0017e516 jpatcher_new + 900
47  com.cycling74.MaxMSP          	0x0001cb2f typedmess_fun + 1973
48  com.cycling74.MaxMSP          	0x000bb079 object_new_typed_flags + 637
49  com.cycling74.MaxMSP          	0x000bb0b8 object_new_typed + 46
50  com.cycling74.MaxMSP          	0x00010cb3 jpatcher_load_fromdictionary(char*, short, object*, short, atom*) + 437
51  com.cycling74.MaxMSP          	0x00010e32 jpatcher_load_frombuffer(char*, short, char const*, long, short, atom*) + 310
52  com.cycling74.MaxMSP          	0x000110a1 jpatcher_load(char*, short, short, atom*) + 373
53  com.cycling74.MaxMSP          	0x0001132f lowload_type + 597
54  com.cycling74.MaxMSP          	0x00011c25 fileload_extended + 169
55  com.cycling74.MaxMSP          	0x00012191 fileload_unique + 99
56  com.cycling74.MaxMSP          	0x000121c4 fileload_type + 40
57  com.cycling74.MaxMSP          	0x0001231a dropload + 340
58  com.cycling74.MaxMSP          	0x00007c8e ae_openfile(FSRef*) + 60
59  com.cycling74.MaxMSP          	0x00053283 sysiac_iterate + 223
60  com.cycling74.MaxMSP          	0x00007d0f ae_docopen(AEDesc const*, AEDesc*, long) + 39
61  com.apple.AE                  	0x935b5f3a aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned long, unsigned char*) + 166
62  com.apple.AE                  	0x935b5e39 dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 43
63  com.apple.AE                  	0x935b5d46 aeProcessAppleEvent + 197
64  com.apple.HIToolbox           	0x92be32a1 AEProcessAppleEvent + 50
65  com.cycling74.MaxMSP          	0x002cd874 juce::juce_dispatchNextMessageOnSystemQueue(bool, bool) + 608
66  com.cycling74.MaxMSP          	0x002d7413 juce::MessageManager::dispatchNextMessage(bool, bool*, bool) + 79
67  com.cycling74.MaxMSP          	0x002d74d2 juce::MessageManager::runDispatchLoop() + 42
68  com.cycling74.MaxMSP          	0x002d5e2d juce::JUCEApplication::main(juce::String&, juce::JUCEApplication*) + 605
69  com.cycling74.MaxMSP          	0x002d5f07 juce::JUCEApplication::main(int, char**, juce::JUCEApplication*) + 125
70  com.cycling74.MaxMSP          	0x001e051a main + 76
71  com.cycling74.MaxMSP          	0x00005d52 _start + 216
72  com.cycling74.MaxMSP          	0x00005c79 start + 41


Hi John - if memory serves, there's a utility in Applications/Utilities called Java Preferences or something like that that allows one to easily change which Java version is run by the OS. So you can see there which Java version is being run, in case that has anything to do with it...

Hi John - if memory serves, there's a utility in Applications/Utilities called Java Preferences or something like that that allows one to easily change which Java version is run by the OS.  So you can see there which Java version is being run, in case that has anything to do with it...

and of course, now that i need this super handy midi-file thingy, there is this problem...thank you, apple.

(anybody noticed, that in quicktime you can´t specify a soundbank for the quicktime synth anymore in neither version? - thats progress...but not for pros...)

dan, i looked up the java-setup in utilities but couldn´t find any useful change. i tried with changing the order in which java looks for the at version, but that didn´t cure the problem.

and of course, now that i need this super handy midi-file thingy, there is this problem...thank you, apple.
(anybody noticed, that in quicktime you can´t specify a soundbank for the quicktime synth anymore in neither version? - thats progress...but not for pros...)

I think the problem is in something that changed in OS X's Java support, and not Max - see this post for example...

Still trying to come up with a solution, as I too use John's great midifile object!

I have not tried this yet, as I'm not on my Snow Leopard machine, but I may try this - basically reverting to Java 5 as a temporary workaround:

http://wiki.oneswarm.org/index.php/OS_X_10.6_Snow_Leopard

And one last clue - from the mmj website:

Maybe flaky device name handling in the Java OS X code. That would sync up with where the crash happened - from the log above:

And one last clue - from the mmj website:  

Maybe flaky device name handling in the Java OS X code.  That would sync up with where the crash happened - from the log above:

j com.sun.media.sound.MidiInDeviceProvider.nGetName(I)Ljava/lang/String;+0


I finally got around to reinstalling Java 5 using these instructions: 

http://www.macosxhints.com/article.php?story=20100123192950640

 and it fixed the problem. Unfortunately, I think this is the only solution at this point.

I finally got around to reinstalling Java 5 using these instructions:  http://www.macosxhints.com/article.php?story=20100123192950640  and it fixed the problem.  Unfortunately, I think this is the only solution at this point.  

Thanks John - I also have had success in getting your midifile object working now, but on OS X 10.5.x (unfortunately the instructions you posted were for 10.6 only I think). I've confirmed that the problem was introduced starting with Java for Mac OS X 10.5 Update 6 (December 03, 2009) - this updates J2SE 5.0 to 1.5.0_22. I've semi-successfully downgraded to Java for Mac OS X 10.5 Update 5 now, which downgrades J2SE 5.0 to version 1.5.0_20. I say "semi" successfully downgraded because now I can't get the Java Preferences app to work... hopefully there are not other problems with my Java install.

I used instructions instructions below, which only partially worked - I had to delete the version 1.5.0 folder completely, and then reinstall:

http://www.apple.com/downloads/macosx/apple/application_updates/javaformacosx105update5.html

Thanks John - I also have had success in getting your midifile object working now, but on OS X 10.5.x (unfortunately the instructions you posted were for 10.6 only I think).  I've confirmed that the problem was introduced starting with Java for Mac OS X 10.5 Update 6 (December 03, 2009) - this updates J2SE 5.0 to 1.5.0_22.  I've semi-successfully downgraded to Java for Mac OS X 10.5 Update 5 now, which downgrades J2SE 5.0 to version 1.5.0_20.  I say "semi" successfully downgraded because now I can't get the Java Preferences app to work... hopefully there are not other problems with my Java install.

http://www.apple.com/downloads/macosx/apple/application_updates/javaformacosx105update5.html


OK, I've now got things narrowed down to an incompatibility between Max's automatically created "to MaxMSP" and "from MaxMSP" virtual MIDI devices, and the latest Apple Java updates (Java for Mac OS X 10.6 Update 1 and Java for Mac OS X 10.5 Update 6, both of which I believe came out in early Dec, 2009).

If I click on each of the messages in the patch below, and *then* instantiate your midifile object John, Max loads and uses it just fine.

I've reported the problem to Cycling, we'll see if they can do anything about it...

OK, I've now got things narrowed down to an incompatibility between Max's automatically created "to MaxMSP" and "from MaxMSP" virtual MIDI devices, and the latest Apple Java updates (Java for Mac OS X 10.6 Update 1 and Java for Mac OS X 10.5 Update 6, both of which I believe came out in early Dec, 2009).  

mxj crashing?